chore: bump version to 1.3.2

* fix: extract DER from PEM-encoded CA cert before CRL signature verification

* chore: bump version to 1.3.2

---------

Co-authored-by: git-echo <git-echo@moon-dragon.us>
Co-authored-by: Draco Lunaris <331325+Draco-Lunaris@users.noreply.github.com>

.a0proj/agents.json

@@ -1 +0,0 @@
-{}

.a0proj/memory/embedding.json

@@ -1 +0,0 @@
-{"model_provider": "openai", "model_name": "BAAI/bge-m3"}

.a0proj/memory/index.faiss.sha256

@@ -1 +0,0 @@
-8e95e0e8cec343042859ef1896dffae2d6bfba986fa2daeaf86600f62e39f71c

.a0proj/memory/knowledge_import.json

@@ -1 +0,0 @@
-{"/a0/usr/knowledge/main/echo-greeting.promptinclude.md": {"file": "/a0/usr/knowledge/main/echo-greeting.promptinclude.md", "checksum": "ad54de76e40288003564157a95ac89ef", "ids": ["qXFLuCv9Q9", "UjhNYB9CkP"]}, "/a0/usr/knowledge/main/Iran-US-Conflict-Update-2026-04-01.md": {"file": "/a0/usr/knowledge/main/Iran-US-Conflict-Update-2026-04-01.md", "checksum": "6beea9874c3bcb846d17f9a60c29d528", "ids": ["5sQkc0Ylqa", "FeZVPLWYss", "kYBRtDfHjJ"]}, "/a0/usr/knowledge/main/ollama-27b-modelfile.txt": {"file": "/a0/usr/knowledge/main/ollama-27b-modelfile.txt", "checksum": "3f4f724d6f777e0620df9781ebc82f36", "ids": ["yZoFOCA99D"]}, "/a0/usr/knowledge/main/behavioral-rules.md": {"file": "/a0/usr/knowledge/main/behavioral-rules.md", "checksum": "ff4230d5f02891487008864de55151e8", "ids": ["5LhBKVgUXB"]}, "/a0/usr/knowledge/main/utility_test.txt": {"file": "/a0/usr/knowledge/main/utility_test.txt", "checksum": "c8c29a129e935836a77048f47e231705", "ids": ["vrbKe4D4sR"]}, "/a0/usr/knowledge/main/welcome.md": {"file": "/a0/usr/knowledge/main/welcome.md", "checksum": "d947ce81d6dcc977a3ddf52e8d5e4712", "ids": ["0Qx7U1mSZH"]}, "/a0/usr/knowledge/main/capability_test_results.txt": {"file": "/a0/usr/knowledge/main/capability_test_results.txt", "checksum": "880b2a6e355125561f22e1f0ac38a3c4", "ids": ["hmVC8arGTg"]}, "/a0/usr/knowledge/main/Iran-US-Conflict-Analysis-2026.md": {"file": "/a0/usr/knowledge/main/Iran-US-Conflict-Analysis-2026.md", "checksum": "ffa6e16f560fc2c021df9c656e8dfdcc", "ids": ["WKKtg5Rj2e", "VBSDN1KENS"]}, "/a0/knowledge/main/tool_call_reference_examples.md": {"file": "/a0/knowledge/main/tool_call_reference_examples.md", "checksum": "1558e6e118619185e31224b1ed646b9a", "ids": ["mLgFu7vH7Z"]}, "/a0/knowledge/main/about/architecture.md": {"file": "/a0/knowledge/main/about/architecture.md", "checksum": "0de7a9280419982ef5fc98d0cc6ad2dc", "ids": ["VG5QHEdqZt", "oALIWNguyG"]}, "/a0/knowledge/main/about/configuration.md": {"file": "/a0/knowledge/main/about/configuration.md", "checksum": "9f83690fdca64631d063c75fd324d42c", "ids": ["XX5kcVMvDu", "T2B8pFL10O"]}, "/a0/knowledge/main/about/capabilities.md": {"file": "/a0/knowledge/main/about/capabilities.md", "checksum": "cf4d100df544af245940971464357e0b", "ids": ["S6MH1eLPzP", "laWnXkj3Ky"]}, "/a0/knowledge/main/about/identity.md": {"file": "/a0/knowledge/main/about/identity.md", "checksum": "63a2c83c6c3bf4c4008786c396618755", "ids": ["Yi3PLqGcaj"]}, "/a0/knowledge/main/about/setup-and-deployment.md": {"file": "/a0/knowledge/main/about/setup-and-deployment.md", "checksum": "3cf57d685f11a6989a73cf041c2018a3", "ids": ["KVJ5zsWDQX", "LoANN0xNbF"]}}

.a0proj/project.json

@@ -1 +0,0 @@
-{"title": "Linux_Patch_API", "description": "Create an API service that will allow remote clients to securely remote manage the patching process and control software add and removal. ", "instructions": "Use Strict Spec Driven development process following the kiro standards.\nAsk questions and help build all of the spec driven files needed\nAlways get approval before taking next steps\nAlways ask questions to determine the right path for the software\nNever make assumptions, always confirm. \nCode must be build following strict security coding guidelines\n", "color": "#00bbf9", "git_url": "", "file_structure": {"enabled": true, "max_depth": 5, "max_files": 20, "max_folders": 20, "max_lines": 250, "gitignore": "# Python environments & cache\nvenv/**\n**/__pycache__/**\n\n# Node.js dependencies\n**/node_modules/**\n**/.npm/**\n\n# Version control metadata\n**/.git/**\n"}}

.a0proj/variables.env

@@ -1,3 +0,0 @@
-EMBEDDING_MODEL=BAAI/bge-m3
-OLLAMA_HOST=http://ares.moon-dragon.us:11435
-LLM_MODEL=qwen3.5:9b

.gitea/workflows/ci.yml

@@ -1,9 +1,9 @@
 name: CI/CD Pipeline
 
-on:
+"on":
   push:
     branches: [ master, develop ]
-    tags: [ 'v*' ]
+    tags: [ 'v*.*.*' ]
   pull_request:
     branches: [ master ]
 
@@ -14,210 +14,393 @@ env:
 jobs:
   fmt:
     name: Code Format
-    runs-on: linux
-    container: node:18
+    runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          components: rustfmt
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          rustup component add rustfmt
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
       - name: Check formatting
         run: cargo fmt --all -- --check
 
   clippy:
     name: Clippy Lints
-    runs-on: linux
-    container: node:18
+    runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          rustup component add clippy
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
       - name: Install system dependencies
         run: |
-          apt-get update
-          apt-get install -y libsystemd-dev pkg-config
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          components: clippy
-      - name: Cache cargo
-        uses: Swatinem/rust-cache@v2
+          sudo apt-get update
+          sudo apt-get -f install -y
+          sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
       - name: Run clippy
         run: cargo clippy --all-targets --all-features -- -D warnings
 
   test:
-    name: Unit Tests
-    runs-on: linux
-    container: node:18
+    name: All Unit Tests
+    runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
       - name: Install system dependencies
         run: |
-          apt-get update
-          apt-get install -y libsystemd-dev pkg-config
-      - uses: dtolnay/rust-toolchain@stable
-      - name: Cache cargo
-        uses: Swatinem/rust-cache@v2
+          sudo apt-get update
+          sudo apt-get -f install -y
+          sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
       - name: Run tests
         run: cargo test --all-features
 
   audit:
     name: Security Audit
-    runs-on: linux
-    container: node:18
+    runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
       - name: Install system dependencies
         run: |
-          apt-get update
-          apt-get install -y libsystemd-dev pkg-config
-      - uses: dtolnay/rust-toolchain@stable
+          sudo apt-get update
+          sudo apt-get -f install -y
+          sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
       - name: Run cargo-audit
         run: |
           cargo install cargo-audit
           cargo audit --ignore RUSTSEC-2025-0134
 
+  enrollment-tests:
+    name: Enrollment Tests
+    needs: [fmt, clippy]
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get -f install -y
+          sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
+      - name: Run enrollment unit tests
+        run: cargo test --test enroll_identity
+      - name: Run enrollment integration tests
+        run: cargo test --test enrollment_test
+      - name: Run enrollment E2E tests
+        run: cargo test --test enrollment_e2e
+
+  verify-enrollment-cli:
+    name: Verify Enrollment CLI Flag
+    needs: [clippy]
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get -f install -y
+          sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
+      - name: Build binary
+        run: cargo build
+      - name: Verify --enroll flag exists
+        run: cargo run -- --help | grep -q '\-\-enroll'
+
   build-deb:
     name: Build Debian Package
-    runs-on: linux
-    container: node:18-bookworm
+    needs: [fmt, clippy, test, enrollment-tests]
+    runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - uses: dtolnay/rust-toolchain@stable
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
       - name: Install build dependencies
         run: |
-          apt-get update
-          apt-get install -y build-essential debhelper cargo rustc libsystemd-dev pkg-config
+          sudo apt-get update
+          sudo apt-get -f install -y
+          sudo apt-get install -y build-essential debhelper pkg-config libsystemd-dev libssl-dev
+      - name: Clean previous build artifacts
+        run: |
+          cargo clean
+          rm -f ../linux-patch-api_*.deb
       - name: Build Debian package
-        run: dpkg-buildpackage -us -uc -b
+        run: |
+          sudo dpkg-buildpackage -us -uc -b -d
       - name: Upload to Gitea Release
-        if: startsWith(github.ref, 'refs/tags/')
+        if: github.ref_type == 'tag'
         env:
-          GITEA_TOKEN: ${{ secrets.giteatoken }}
-          GITEA_API: https://gitea.moon-dragon.us/api/v1
+          GITEA_TOKEN: ${{ secrets.GITEATOKEN }}
         run: |
           TAG_NAME=${GITHUB_REF#refs/tags/}
           FILE=$(ls ../linux-patch-api_*.deb 2>/dev/null | head -1)
-          [ -z "$FILE" ] && echo "No .deb found" && exit 0
-          RELEASE_ID=$(curl -s -H "Authorization: token $GITEA_TOKEN" "$GITEA_API/repos/echo/linux_patch_api/releases/tags/$TAG_NAME" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
-          if [ -z "$RELEASE_ID" ]; then
-            RESPONSE=$(curl -s -X POST -H "Authorization: token $GITEA_TOKEN" -H "Content-Type: application/json" -d "{\"tag_name\": \"$TAG_NAME\", \"name\": \"$TAG_NAME\"}" "$GITEA_API/repos/echo/linux_patch_api/releases")
-            RELEASE_ID=$(echo "$RESPONSE" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
+          # Rename deb to include u2404 in filename to distinguish from u2204 build
+          if [ -n "$FILE" ]; then
+            U2404_FILE="$(echo "$FILE" | sed 's/_amd64/_u2404_amd64/')"
+            mv "$FILE" "$U2404_FILE"
+            FILE="$U2404_FILE"
           fi
-          UPLOAD_RESPONSE=$(curl -s -w "\nHTTP_CODE:%{http_code}" -X POST -H "Authorization: token $GITEA_TOKEN" -F "attachment=@$FILE" "$GITEA_API/repos/echo/linux_patch_api/releases/$RELEASE_ID/assets?name=$(basename $FILE)")
-          HTTP_CODE=$(echo "$UPLOAD_RESPONSE" | grep "HTTP_CODE:" | cut -d: -f2)
-          if [ "$HTTP_CODE" != "201" ] && [ "$HTTP_CODE" != "200" ]; then echo "Upload failed $HTTP_CODE" && exit 1; fi
-          echo "Successfully uploaded $FILE"
+          chmod +x scripts/upload-release.sh
+          ./scripts/upload-release.sh "$TAG_NAME" "$FILE"
+
+  build-deb-u2204:
+    name: Build Debian Package (Ubuntu 22.04)
+    needs: [fmt, clippy, test, enrollment-tests]
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get -f install -y
+          sudo apt-get install -y build-essential debhelper pkg-config libsystemd-dev libssl-dev
+      - name: Clean previous build artifacts
+        run: |
+          cargo clean
+          rm -f ../linux-patch-api_*.deb
+      - name: Build Debian package
+        run: |
+          sudo dpkg-buildpackage -us -uc -b -d
+      - name: Upload to Gitea Release
+        if: github.ref_type == 'tag'
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEATOKEN }}
+        run: |
+          TAG_NAME=${GITHUB_REF#refs/tags/}
+          FILE=$(ls ../linux-patch-api_*.deb 2>/dev/null | head -1)
+          # Rename deb to include u2204 in filename to avoid collision with main build
+          if [ -n "$FILE" ]; then
+            U2204_FILE="$(echo "$FILE" | sed 's/_amd64/_u2204_amd64/')"
+            mv "$FILE" "$U2204_FILE"
+            FILE="$U2204_FILE"
+          fi
+          chmod +x scripts/upload-release.sh
+          ./scripts/upload-release.sh "$TAG_NAME" "$FILE"
 
   build-rpm:
     name: Build RPM Package
-    runs-on: linux
-    container: linux-patch-api-rpm:latest
+    needs: [fmt, clippy, test, enrollment-tests]
+    runs-on: fedora
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - uses: dtolnay/rust-toolchain@stable
-      - name: Install RPM build tools
+      - name: Checkout repository
         run: |
-          dnf install -y rpm-build gcc cargo rust systemd-devel pkg-config
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Install build dependencies
+        run: |
+          sudo dnf install -y gcc rpm-build systemd-devel pkg-config openssl-devel
+      - name: Clean stale RPM artifacts
+        run: |
+          rm -f ~/rpmbuild/RPMS/x86_64/linux-patch-api-*.rpm
+          rm -f releases/linux-patch-api-*.rpm
       - name: Build release binary
         run: cargo build --release
       - name: Build RPM package
-        run: ./build-rpm.sh
+        run: |
+          chmod +x build-rpm.sh
+          SKIP_CARGO_BUILD=1 ./build-rpm.sh
+      - name: Verify RPM package
+        run: |
+          VERSION=$(grep '^version' Cargo.toml | head -1 | sed 's/.*=.*"\([^"]*\)".*/\1/')
+          RPM_FILE=$(ls ~/rpmbuild/RPMS/x86_64/linux-patch-api-${VERSION}-*.rpm 2>/dev/null | head -1)
+          if [ -z "$RPM_FILE" ]; then
+            echo "ERROR: RPM package not found for version $VERSION!"
+            ls -la ~/rpmbuild/RPMS/x86_64/ 2>/dev/null || echo "RPM directory empty or missing"
+            exit 1
+          fi
+          RPM_VERSION=$(rpm -qp --queryformat '%{VERSION}' "$RPM_FILE" 2>/dev/null || true)
+          echo "RPM file: $RPM_FILE"
+          echo "RPM version: $RPM_VERSION"
+          echo "Expected version: $VERSION"
+          if [ "$RPM_VERSION" != "$VERSION" ]; then
+            echo "ERROR: RPM version ($RPM_VERSION) does not match expected version ($VERSION)!"
+            exit 1
+          fi
+          echo "RPM verification passed"
       - name: Upload to Gitea Release
-        if: startsWith(github.ref, 'refs/tags/')
+        if: github.ref_type == 'tag'
         env:
-          GITEA_TOKEN: ${{ secrets.giteatoken }}
-          GITEA_API: https://gitea.moon-dragon.us/api/v1
+          GITEA_TOKEN: ${{ secrets.GITEATOKEN }}
         run: |
           TAG_NAME=${GITHUB_REF#refs/tags/}
-          FILE=$(ls ~/rpmbuild/RPMS/x86_64/*.rpm 2>/dev/null | head -1)
-          [ -z "$FILE" ] && echo "No .rpm found" && exit 0
-          RELEASE_ID=$(curl -s -H "Authorization: token $GITEA_TOKEN" "$GITEA_API/repos/echo/linux_patch_api/releases/tags/$TAG_NAME" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
-          if [ -z "$RELEASE_ID" ]; then
-            RESPONSE=$(curl -s -X POST -H "Authorization: token $GITEA_TOKEN" -H "Content-Type: application/json" -d "{\"tag_name\": \"$TAG_NAME\", \"name\": \"$TAG_NAME\"}" "$GITEA_API/repos/echo/linux_patch_api/releases")
-            RELEASE_ID=$(echo "$RESPONSE" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
+          VERSION=$(grep '^version' Cargo.toml | head -1 | sed 's/.*=.*"\([^"]*\)".*/\1/')
+          FILE=$(ls ~/rpmbuild/RPMS/x86_64/linux-patch-api-${VERSION}-*.rpm 2>/dev/null | head -1)
+          if [ -z "$FILE" ]; then
+            echo "ERROR: No RPM found with version $VERSION for upload!"
+            exit 1
           fi
-          UPLOAD_RESPONSE=$(curl -s -w "\nHTTP_CODE:%{http_code}" -X POST -H "Authorization: token $GITEA_TOKEN" -F "attachment=@$FILE" "$GITEA_API/repos/echo/linux_patch_api/releases/$RELEASE_ID/assets?name=$(basename $FILE)")
-          HTTP_CODE=$(echo "$UPLOAD_RESPONSE" | grep "HTTP_CODE:" | cut -d: -f2)
-          if [ "$HTTP_CODE" != "201" ] && [ "$HTTP_CODE" != "200" ]; then echo "Upload failed $HTTP_CODE" && exit 1; fi
-          echo "Successfully uploaded $FILE"
+          chmod +x scripts/upload-release.sh
+          ./scripts/upload-release.sh "$TAG_NAME" "$FILE"
 
   build-apk:
     name: Build Alpine Package
-    runs-on: linux
-    container: node:18-alpine
+    needs: [fmt, clippy, test, enrollment-tests]
+    runs-on: alpine
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - name: Install Rust toolchain
+      - name: Checkout repository
         run: |
           apk add --no-cache curl
-          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
-          source $HOME/.cargo/env
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          apk add --no-cache curl bash
+          curl --ipv4 --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          rustup target add x86_64-unknown-linux-musl
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
       - name: Install build dependencies
         run: |
-          apk add --no-cache musl-dev openssl-dev git abuild gcc elogind-dev
-      - name: Build APK package
-        run: ./build-alpine.sh
+          apk add --no-cache alpine-sdk rust cargo openssl openssl-dev elogind-dev musl-dev abuild gcc
+      - name: Build release binary
+        run: cargo build --release --target x86_64-unknown-linux-musl
+      - name: Build Alpine package
+        run: |
+          chmod +x build-alpine.sh
+          SKIP_CARGO_BUILD=1 ./build-alpine.sh
+      - name: Verify Alpine package
+        run: |
+          EXPECTED_VERSION=$(grep '^version' Cargo.toml | head -1 | sed 's/.*=.*"\([^"]*\)".*/\1/')
+          FILE=$(ls releases/linux-patch-api-*.apk 2>/dev/null | head -1)
+          if [ -z "$FILE" ]; then
+            echo "ERROR: No Alpine package found!"
+            exit 1
+          fi
+          echo "Expected version: $EXPECTED_VERSION"
+          echo "Package file: $FILE"
+          # Verify filename contains expected version
+          if ! echo "$FILE" | grep -q "$EXPECTED_VERSION"; then
+            echo "ERROR: Alpine package version ($FILE) does not match expected version ($EXPECTED_VERSION)!"
+            exit 1
+          fi
+          echo "Alpine package verification passed"
       - name: Upload to Gitea Release
         if: startsWith(github.ref, 'refs/tags/')
         env:
-          GITEA_TOKEN: ${{ secrets.giteatoken }}
-          GITEA_API: https://gitea.moon-dragon.us/api/v1
+          GITEA_TOKEN: ${{ secrets.GITEATOKEN }}
         run: |
           TAG_NAME=${GITHUB_REF#refs/tags/}
-          FILE=$(ls releases/*.apk 2>/dev/null | head -1)
-          [ -z "$FILE" ] && echo "No .apk found" && exit 0
-          RELEASE_ID=$(curl -s -H "Authorization: token $GITEA_TOKEN" "$GITEA_API/repos/echo/linux_patch_api/releases/tags/$TAG_NAME" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
-          if [ -z "$RELEASE_ID" ]; then
-            RESPONSE=$(curl -s -X POST -H "Authorization: token $GITEA_TOKEN" -H "Content-Type: application/json" -d "{\"tag_name\": \"$TAG_NAME\", \"name\": \"$TAG_NAME\"}" "$GITEA_API/repos/echo/linux_patch_api/releases")
-            RELEASE_ID=$(echo "$RESPONSE" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
+          FILE=$(ls releases/linux-patch-api-*.apk 2>/dev/null | head -1)
+          if [ -z "$FILE" ]; then
+            echo "ERROR: No Alpine package found for upload!"
+            exit 1
           fi
-          UPLOAD_RESPONSE=$(curl -s -w "\nHTTP_CODE:%{http_code}" -X POST -H "Authorization: token $GITEA_TOKEN" -F "attachment=@$FILE" "$GITEA_API/repos/echo/linux_patch_api/releases/$RELEASE_ID/assets?name=$(basename $FILE)")
-          HTTP_CODE=$(echo "$UPLOAD_RESPONSE" | grep "HTTP_CODE:" | cut -d: -f2)
-          if [ "$HTTP_CODE" != "201" ] && [ "$HTTP_CODE" != "200" ]; then echo "Upload failed $HTTP_CODE" && exit 1; fi
-          echo "Successfully uploaded $FILE"
+          chmod +x scripts/upload-release.sh
+          ./scripts/upload-release.sh "$TAG_NAME" "$FILE"
 
   build-arch:
     name: Build Arch Package
-    runs-on: linux
-    container: linux-patch-api-arch:latest
+    needs: [fmt, clippy, test, enrollment-tests]
+    runs-on: arch
     steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
+      - name: Checkout repository
+        run: |
+          curl -sfL -H "Authorization: token ${{ secrets.GITEATOKEN }}" "https://gitea-lxc.moon-dragon.us/git-echo/linux_patch_api/archive/${GITHUB_SHA}.tar.gz" -o repo.tar.gz
+          tar -xzf repo.tar.gz --strip-components=1
+          rm -f repo.tar.gz
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable --profile minimal
+          . "$HOME/.cargo/env"
+          echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
       - name: Install build dependencies
         run: |
-          pacman -Syu --noconfirm rust cargo systemd git base-devel
+          sudo pacman -Syu --noconfirm rust cargo systemd git base-devel gcc
+      - name: Clean previous build artifacts
+        run: |
+          cargo clean
+          rm -f releases/linux-patch-api-*.pkg.tar.zst
       - name: Build release binary
         run: cargo build --release
       - name: Build Arch package
-        run: ./build-arch.sh
+        run: |
+          chmod +x build-arch.sh
+          SKIP_CARGO_BUILD=1 ./build-arch.sh
+      - name: Verify Arch package
+        run: |
+          FILE=$(ls releases/*.pkg.tar.zst 2>/dev/null | head -1)
+          if [ -z "$FILE" ]; then
+            echo "ERROR: No Arch package found!"
+            exit 1
+          fi
+          EXPECTED_VERSION=$(grep '^version' Cargo.toml | head -1 | sed 's/.*=.*"\([^"]*\)".*/\1/')
+          echo "Expected version: $EXPECTED_VERSION"
+          echo "Package file: $FILE"
+          # Verify the package contains the correct binary version
+          pacman -Qip "$FILE" 2>/dev/null | grep -i version || true
       - name: Upload to Gitea Release
         if: startsWith(github.ref, 'refs/tags/')
         env:
-          GITEA_TOKEN: ${{ secrets.giteatoken }}
-          GITEA_API: https://gitea.moon-dragon.us/api/v1
+          GITEA_TOKEN: ${{ secrets.GITEATOKEN }}
         run: |
           TAG_NAME=${GITHUB_REF#refs/tags/}
           FILE=$(ls releases/*.pkg.tar.zst 2>/dev/null | head -1)
-          [ -z "$FILE" ] && echo "No .pkg.tar.zst found" && exit 0
-          RELEASE_ID=$(curl -s -H "Authorization: token $GITEA_TOKEN" "$GITEA_API/repos/echo/linux_patch_api/releases/tags/$TAG_NAME" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
-          if [ -z "$RELEASE_ID" ]; then
-            RESPONSE=$(curl -s -X POST -H "Authorization: token $GITEA_TOKEN" -H "Content-Type: application/json" -d "{\"tag_name\": \"$TAG_NAME\", \"name\": \"$TAG_NAME\"}" "$GITEA_API/repos/echo/linux_patch_api/releases")
-            RELEASE_ID=$(echo "$RESPONSE" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
-          fi
-          UPLOAD_RESPONSE=$(curl -s -w "\nHTTP_CODE:%{http_code}" -X POST -H "Authorization: token $GITEA_TOKEN" -F "attachment=@$FILE" "$GITEA_API/repos/echo/linux_patch_api/releases/$RELEASE_ID/assets?name=$(basename $FILE)")
-          HTTP_CODE=$(echo "$UPLOAD_RESPONSE" | grep "HTTP_CODE:" | cut -d: -f2)
-          if [ "$HTTP_CODE" != "201" ] && [ "$HTTP_CODE" != "200" ]; then echo "Upload failed $HTTP_CODE" && exit 1; fi
-          echo "Successfully uploaded $FILE"
+          chmod +x scripts/upload-release.sh
+          ./scripts/upload-release.sh "$TAG_NAME" "$FILE"

.github/workflows/ci.yml

@@ -0,0 +1,282 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+    tags: ['v*.*.*']
+  pull_request:
+    branches: [master]
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_BACKTRACE: 1
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
+
+permissions:
+  contents: write
+
+jobs:
+  # ── Quality Gates (GitHub-hosted, all triggers) ──────────────────────────
+
+  fmt:
+    name: fmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo fmt --all -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+      - uses: Swatinem/rust-cache@v2
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
+      - run: cargo clippy --all-targets --all-features -- -D warnings
+
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
+      - run: cargo test --all-features
+
+  audit:
+    name: Security Audit
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - run: cargo install cargo-audit && cargo audit --ignore RUSTSEC-2025-0134
+
+  enrollment-tests:
+    name: Enrollment Tests
+    needs: [fmt, clippy]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
+      - run: cargo test --test enroll_identity
+      - run: cargo test --test enrollment_test
+      - run: cargo test --test enrollment_e2e
+
+  # ── Release Preparation (tag push only) ───────────────────────────────────
+
+  prepare-release:
+    name: Prepare Release
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: [fmt, clippy, test, enrollment-tests, audit]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Generate release notes
+        id: release_notes
+        run: |
+          PREV_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
+          if [ -n "$PREV_TAG" ]; then
+            NOTES=$(git log ${PREV_TAG}..HEAD --pretty=format:"- %s (%h)" --no-merges)
+          else
+            NOTES=$(git log --pretty=format:"- %s (%h)" --no-merges)
+          fi
+          echo "notes<<EOF" >> $GITHUB_OUTPUT
+          echo "$NOTES" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          body: ${{ steps.release_notes.outputs.notes }}
+
+  # ── Build Jobs (tag push only, self-hosted runners) ───────────────────────
+
+  build-deb-u2404:
+    name: Build .deb (Ubuntu 24.04)
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: [fmt, clippy, test, enrollment-tests, audit, prepare-release]
+    runs-on: [self-hosted, linux, ubuntu-24.04]
+    steps:
+      - name: Clean previous build artifacts from root
+        run: sudo rm -rf releases/ || true
+      - uses: actions/checkout@v4
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
+      - name: Add Rust to PATH
+        run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Build .deb package
+        run: chmod +x scripts/build-package.sh && scripts/build-package.sh
+      - name: Rename package with distro suffix
+        run: |
+          FILE=$(ls linux-patch-api_*_amd64.deb 2>/dev/null | head -1)
+          if [ -n "$FILE" ]; then
+            mv "$FILE" "$(echo "$FILE" | sed 's/_amd64/_u2404_amd64/')"
+          fi
+      - name: Upload to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: linux-patch-api_*_u2404_amd64.deb
+
+  build-deb-u2204:
+    name: Build .deb (Ubuntu 22.04)
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: [fmt, clippy, test, enrollment-tests, audit, prepare-release]
+    runs-on: [self-hosted, linux, ubuntu-22.04]
+    steps:
+      - name: Clean previous build artifacts from root
+        run: sudo rm -rf releases/ || true
+      - uses: actions/checkout@v4
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
+      - name: Add Rust to PATH
+        run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Build .deb package
+        run: chmod +x scripts/build-package.sh && scripts/build-package.sh
+      - name: Rename package with distro suffix
+        run: |
+          FILE=$(ls linux-patch-api_*_amd64.deb 2>/dev/null | head -1)
+          if [ -n "$FILE" ]; then
+            mv "$FILE" "$(echo "$FILE" | sed 's/_amd64/_u2204_amd64/')"
+          fi
+      - name: Upload to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: linux-patch-api_*_u2204_amd64.deb
+
+  build-deb-debian13:
+    name: Build .deb (Debian 13)
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: [fmt, clippy, test, enrollment-tests, audit, prepare-release]
+    runs-on: [self-hosted, linux, debian-13]
+    steps:
+      - name: Clean previous build artifacts from root
+        run: sudo rm -rf releases/ || true
+      - uses: actions/checkout@v4
+      - name: Install system dependencies
+        run: sudo apt-get update && sudo apt-get install -y build-essential libsystemd-dev pkg-config libssl-dev
+      - name: Add Rust to PATH
+        run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Build .deb package
+        run: chmod +x scripts/build-package.sh && scripts/build-package.sh
+      - name: Rename package with distro suffix
+        run: |
+          FILE=$(ls linux-patch-api_*_amd64.deb 2>/dev/null | head -1)
+          if [ -n "$FILE" ]; then
+            mv "$FILE" "$(echo "$FILE" | sed 's/_amd64/_debian13_amd64/')"
+          fi
+      - name: Upload to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: linux-patch-api_*_debian13_amd64.deb
+
+  build-rpm-fedora:
+    name: Build .rpm (Fedora)
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: [fmt, clippy, test, enrollment-tests, audit, prepare-release]
+    runs-on: [self-hosted, linux, fedora]
+    steps:
+      - name: Clean previous build artifacts from root
+        run: sudo rm -rf releases/ || true
+      - uses: actions/checkout@v4
+      - name: Install system dependencies
+        run: sudo dnf install -y systemd-devel openssl-devel pkg-config gcc make
+      - name: Add Rust to PATH
+        run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Build release binary
+        run: cargo build --release
+      - name: Build RPM package
+        run: chmod +x build-rpm.sh && SKIP_CARGO_BUILD=1 sudo -E ./build-rpm.sh
+      - name: Upload to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: releases/linux-patch-api-*.rpm
+
+  build-rpm-almalinux:
+    name: Build .rpm (AlmaLinux 10)
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: [fmt, clippy, test, enrollment-tests, audit, prepare-release]
+    runs-on: [self-hosted, linux, almalinux-10]
+    steps:
+      - name: Clean previous build artifacts from root
+        run: sudo rm -rf releases/ || true
+      - uses: actions/checkout@v4
+      - name: Install system dependencies
+        run: sudo dnf install -y systemd-devel openssl-devel pkg-config gcc make
+      - name: Add Rust to PATH
+        run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Build release binary
+        run: cargo build --release
+      - name: Build RPM package
+        run: chmod +x build-rpm.sh && SKIP_CARGO_BUILD=1 sudo -E ./build-rpm.sh
+      - name: Upload to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: releases/linux-patch-api-*.rpm
+
+  build-arch:
+    name: Build .pkg.tar.zst (Arch Linux)
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: [fmt, clippy, test, enrollment-tests, audit, prepare-release]
+    runs-on: [self-hosted, linux, arch]
+    steps:
+      - name: Clean previous build artifacts from root
+        run: sudo rm -rf releases/ || true
+      - uses: actions/checkout@v4
+      - name: Install system dependencies
+        run: sudo pacman -Syu --noconfirm systemd openssl pkg-config gcc
+      - name: Add Rust to PATH
+        run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Build release binary
+        run: cargo build --release
+      - name: Build Arch package
+        run: chmod +x build-arch.sh && SKIP_CARGO_BUILD=1 ./build-arch.sh
+      - name: Upload to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: releases/*.pkg.tar.zst
+
+  build-alpine:
+    name: Build .apk (Alpine)
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: [fmt, clippy, test, enrollment-tests, audit, prepare-release]
+    runs-on: ubuntu-latest
+    container:
+      image: alpine:latest
+      env:
+        HOME: /root
+    steps:
+      - name: Install prerequisites for actions/checkout
+        run: apk add --no-cache bash git curl tar
+      - uses: actions/checkout@v4
+      - name: Install Alpine build dependencies
+        run: apk add --no-cache gcc musl-dev openssl-dev openssl elogind-dev alpine-sdk abuild
+      - name: Install Rust via rustup
+        run: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+      - name: Add Rust to PATH
+        run: echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
+      - name: Add musl target
+        run: rustup target add x86_64-unknown-linux-musl
+      - name: Build release binary (musl target)
+        run: cargo build --release --target x86_64-unknown-linux-musl
+      - name: Build Alpine package
+        run: |
+          chmod +x build-alpine.sh
+          SKIP_CARGO_BUILD=1 ./build-alpine.sh
+      - name: Upload to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: releases/linux-patch-api-*.apk

.gitignore

@@ -1 +1,18 @@
 /target
+/releases/
+
+# Build artifacts
+debian/tmp/
+debian/linux-patch-api/
+debian/.debhelper/
+debian/debhelper-build-stamp
+debian/files
+debian/linux-patch-api.debhelper.log
+debian/linux-patch-api.postrm.debhelper
+debian/linux-patch-api.substvars
+*.deb
+*.buildinfo
+*.changes
+
+# Agent Zero project data
+.a0proj/

API_DOCUMENTATION.md

@@ -15,6 +15,7 @@ Complete API reference for the Linux Patch API service.
 - [Authentication](#authentication)
 - [Standard Response Format](#standard-response-format)
 - [Error Handling](#error-handling)
+- [Enrollment Endpoints](#enrollment-endpoints)
 - [Package Management Endpoints](#package-management-endpoints)
 - [Patch Management Endpoints](#patch-management-endpoints)
 - [System Management Endpoints](#system-management-endpoints)
@@ -882,6 +883,262 @@ def wait_for_job(job_id, base_url, certs, poll_interval=2):
 
 ---
 
+## Enrollment Endpoints
+
+Enrollment endpoints enable new hosts to register with the Patch Manager and receive mTLS certificates for authenticated API access. These endpoints operate **without client certificate authentication** — security is enforced through rate limiting, single-use tokens, and admin approval workflows.
+
+**Base path:** `/api/v1/` (on the Patch Manager server)
+**Authentication:** None (pre-provisioning phase)
+**Transport:** HTTPS recommended; TLS verification intentionally relaxed on initial connection per security model
+
+> **Cross-reference:** [SPEC.md §4.2 Enrollment Workflow](./SPEC.md) · [DEPLOYMENT_SECURITY_GUIDE.md](./DEPLOYMENT_SECURITY_GUIDE.md)
+
+---
+
+### POST /api/v1/enroll
+
+**Description:** Initiates a host self-enrollment request with the Patch Manager. The manager assigns a unique polling token that the host uses to check approval status.
+
+**Authentication:** None (unauthenticated public endpoint)
+
+#### Request Body
+
+| Field | Type | Required | Description |
+|-------|------|----------|-------------|
+| `machine_id` | string | Yes | Linux machine-id from `/etc/machine-id` |
+| `fqdn` | string | Yes | Fully qualified domain name of the host |
+| `ip_address` | string | Yes | Primary non-loopback IPv4 address |
+| `os_details` | object | Yes | OS metadata (free-form JSON object) |
+| `hostname` | string | No | Short hostname (without domain). Used by the manager to populate `display_name` on approval. If omitted, the manager falls back to the FQDN. |
+
+**`os_details` common fields:**
+
+| Field | Type | Description |
+|-------|------|-------------|
+| `name` | string | Distribution name (e.g., `Debian`, `Ubuntu`) |
+| `version_id` | string | OS version identifier (e.g., `12`, `24.04`) |
+| `kernel` | string | Kernel release string (e.g., `6.1.0-kali9-amd64`) |
+| `id_like` | string | Family identifier (e.g., `debian`) |
+
+#### Request Example
+
+```bash
+curl -X POST https://manager.example.com/api/v1/enroll \
+  -H "Content-Type: application/json" \
+  -d '{
+    "machine_id": "a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6",
+    "fqdn": "host-01.example.com",
+    "ip_address": "192.168.1.50",
+    "os_details": {
+      "name": "Debian",
+      "version_id": "12",
+      "kernel": "6.1.0-kali9-amd64",
+      "id_like": "debian"
+    },
+    "hostname": "host-01"
+  }'
+```
+
+#### Success Response (202 Accepted)
+
+```json
+{
+  "polling_token": "aB3dE6gH9jK2mN5pQ8rS1tU4vW7xY0zA"
+}
+```
+
+| Field | Type | Description |
+|-------|------|-------------|
+| `polling_token` | string | 64-character alphanumeric bearer token for status polling. **Treat as secret credential.** |
+
+#### Error Responses
+
+| HTTP Status | Body | Description |
+|-------------|------|-------------|
+| `429` | `{ "error": "Rate limit exceeded. Try again in a minute." }` | Rate limit exceeded: 1 request/minute per source IP |
+| `500` | `{ "error": "Database error" }` | Internal server or database error |
+
+---
+
+### GET /api/v1/enroll/status/{token}
+
+**Description:** Returns the current approval status of an enrollment request. When approved, the response includes the complete PKI bundle (CA certificate, server certificate, and server private key) needed for mTLS provisioning.
+
+**Authentication:** None (token serves as bearer credential)
+
+#### Path Parameters
+
+| Parameter | Type | Description |
+|-----------|------|-------------|
+| `token` | string | 64-character alphanumeric polling token from `POST /enroll` response |
+
+#### Response Format
+
+The endpoint returns a **tagged JSON object** with a `status` discriminator field. All responses return HTTP `200 OK` — the `status` value determines the outcome.
+
+##### Pending (Awaiting Admin Approval)
+
+```json
+{ "status": "pending" }
+```
+
+The enrollment request has been received and is awaiting administrator review. The host should continue polling at regular intervals.
+
+##### Approved (PKI Bundle Provided)
+
+```json
+{
+  "status": "approved",
+  "ca_crt": "-----BEGIN CERTIFICATE-----\nMIID...\n-----END CERTIFICATE-----",
+  "server_crt": "-----BEGIN CERTIFICATE-----\nMIID...\n-----END CERTIFICATE-----",
+  "server_key": "-----BEGIN PRIVATE KEY-----\nMIGH...\n-----END PRIVATE KEY-----"
+}
+```
+
+| Field | Type | Description |
+|-------|------|-------------|
+| `status` | string | Always `"approved"` for this variant |
+| `ca_crt` | string | PEM-encoded CA root certificate (for TLS verification) |
+| `server_crt` | string | PEM-encoded server certificate (manager's TLS leaf) |
+| `server_key` | string | PEM-encoded server private key (PKCS#8 format) |
+
+##### Denied
+
+```json
+{ "status": "denied" }
+```
+
+The administrator has rejected the enrollment request. The host should abort the enrollment process.
+
+##### Not Found (Token Expired or Invalid)
+
+```json
+{ "status": "not_found" }
+```
+
+The polling token does not match any pending or approved enrollment. This occurs when:
+- The token has expired (default TTL: 24 hours)
+- The token was never issued
+- The enrollment was already fulfilled and purged
+
+#### curl Examples
+
+```bash
+# Check enrollment status
+curl https://manager.example.com/api/v1/enroll/status/aB3dE6gH9jK2mN5pQ8rS1tU4vW7xY0zA
+
+# Extract PKI bundle when approved
+curl -s https://manager.example.com/api/v1/enroll/status/$TOKEN | jq -r '.ca_crt' > /etc/linux_patch_api/certs/ca.crt
+curl -s https://manager.example.com/api/v1/enroll/status/$TOKEN | jq -r '.server_crt' > /etc/linux_patch_api/certs/server.crt
+curl -s https://manager.example.com/api/v1/enroll/status/$TOKEN | jq -r '.server_key' > /etc/linux_patch_api/certs/server.key.pem
+```
+
+---
+
+### Enrollment Flow Sequence
+
+Complete step-by-step enrollment lifecycle from initial registration to mTLS provisioning:
+
+```
+┌──────────────┐         ┌──────────────┐         ┌──────────────┐
+│   Linux Host  │         │ Patch Manager │         │  Admin UI    │
+│  (linux_patch │         │   Server      │         │             │
+│   _api)       │         │               │         │             │
+└──────┬───────┘         └──────┬───────┘         └──────┬───────┘
+       │                        │                        │
+       │  1. POST /enroll       │                        │
+       │  { machine_id, fqdn,   │                        │
+       │    ip_address,         │                        │
+       │    os_details }        │                        │
+       │──────────────────────▶│                        │
+       │                        │                        │
+       │                        │  Store request + token │
+       │                        │  (SHA256 hashed)       │
+       │                        │                        │
+       │  2. 202 Accepted       │                        │
+       │  { polling_token }     │                        │
+       │──────────────────────▶│                        │
+       │                        │                        │
+       │                        │  3. List pending       │
+       │                        │  enrollments           │
+       │                        │─────────────────────▶│
+       │                        │                        │
+       │                        │  Admin reviews &       │
+       │                        │  approves request      │
+       │                        │◀──────────────────────│
+       │                        │                        │
+       │                        │  Generate PKI bundle   │
+       │                        │  (CA cert + server     │
+       │                        │   cert + server key)   │
+       │                        │                        │
+       │  4. GET /enroll/status │                        │
+       │  /{token}              │                        │
+       │──────────────────────▶│                        │
+       │                        │                        │
+       │  5. 200 { status:      │                        │
+       │     "approved",        │                        │
+       │     ca_crt,            │                        │
+       │     server_crt,        │                        │
+       │     server_key }       │                        │
+       │◀──────────────────────│                        │
+       │                        │                        │
+       │  6. Provision:         │                        │
+       │  - Write certs to disk │                        │
+       │  - Update whitelist    │                        │
+       │  - Restart with mTLS   │                        │
+       │                        │                        │
+```
+
+**Step Details:**
+
+| Step | Action | Details |
+|------|--------|---------|
+| 1 | Host sends enrollment request | Extracts identity from `/etc/machine-id`, hostname, network interfaces, and OS release data |
+| 2 | Manager returns polling token | Token is 64-character random alphanumeric string; SHA256 hash stored in database |
+| 3 | Admin reviews pending requests | Manager exposes admin API for listing/approving/denying enrollment requests |
+| 4 | Host polls status periodically | Default interval: 60 seconds. Configurable via `--poll-interval` flag |
+| 5 | Host receives PKI bundle on approval | Complete CA chain, server certificate, and private key in PEM format |
+| 6 | Host provisions mTLS infrastructure | Writes certificates to configured paths, updates IP whitelist, transitions to authenticated mode |
+
+---
+
+### Rate Limiting
+
+| Endpoint | Limit | Window | Scope |
+|----------|-------|--------|-------|
+| `POST /api/v1/enroll` | 1 request | Per minute | Per source IP address |
+| `GET /api/v1/enroll/status/{token}` | No explicit limit | — | Host-controlled polling interval |
+
+**Rate Limit Enforcement:**
+- POST `/enroll`: Enforced by manager using in-memory LRU cache keyed on source IP (or `X-Forwarded-For` first entry when behind reverse proxy)
+- Status endpoint: No server-side rate limiting; client controls poll frequency (default: 60s interval)
+
+---
+
+### Security Notes
+
+| Concern | Mitigation |
+|---------|------------|
+| **Initial connection security** | TLS verification disabled on enrollment client (`danger_accept_invalid_certs`). Manager approval workflow provides authorization — transport encryption is secondary during pre-provisioning phase |
+| **Token secrecy** | Polling token is a 64-character random alphanumeric bearer credential. Never log the raw token value (only hash stored in DB). Tokens expire after 24 hours by default |
+| **Host identity** | `machine_id` from `/etc/machine-id` provides unique host identification. Combined with FQDN and IP for collision detection during admin approval |
+| **FQDN/IP collision** | Admin approval checks existing hosts table — rejects enrollment if FQDN or IP already registered to another host (HTTP 409 Conflict) |
+| **Certificate isolation** | Each approved host receives a unique client certificate signed by internal CA. Certificates have max 1-year validity |
+
+---
+
+### Error Reference Table
+
+| HTTP Status | Error Context | Description | Retryable |
+|-------------|---------------|-------------|----------|
+| `429` | POST /enroll | Rate limit exceeded (1/min per IP) | Yes — wait 60s |
+| `409` | Admin approve endpoint | FQDN or IP collision with existing host | No — resolve conflict first |
+| `500` | Any enrollment endpoint | Database error or internal server failure | Yes — transient |
+| `200` `{ "status": "denied" }` | GET /enroll/status/{token} | Administrator rejected request | No — contact administrator |
+| `200` `{ "status": "not_found" }` | GET /enroll/status/{token} | Token expired, invalid, or already consumed | No — re-enroll with new request |
+
+---
+
 ## Support
 
 - **Documentation:** [README.md](./README.md)

ARCHITECTURE.md

@@ -269,18 +269,37 @@ Client → [mTLS + IP Check] → [API Layer] → [GET /jobs/{id}]
 
 ### Endpoint: GET /health
 
-**Purpose:** General service status check
+**Purpose:** General service status check with package cache status
 
 **Response (200 OK - Healthy):**
 ```json
 {
   "success": true,
   "request_id": "uuid",
-  "timestamp": "2026-04-09T13:04:02Z",
+  "timestamp": "2026-05-27T14:00:00Z",
   "data": {
     "status": "healthy",
     "uptime_seconds": 12345,
-    "version": "0.0.1"
+    "version": "1.1.17",
+    "last_cache_update": "2026-05-27T13:30:00+00:00",
+    "cache_status": "fresh"
+  },
+  "error": null
+}
+```
+
+**Response (200 OK - Degraded):**
+```json
+{
+  "success": true,
+  "request_id": "uuid",
+  "timestamp": "2026-05-27T14:00:00Z",
+  "data": {
+    "status": "degraded",
+    "uptime_seconds": 12345,
+    "version": "1.1.17",
+    "last_cache_update": "2026-05-27T09:00:00+00:00",
+    "cache_status": "failed"
   },
   "error": null
 }
@@ -291,6 +310,19 @@ Client → [mTLS + IP Check] → [API Layer] → [GET /jobs/{id}]
 - mTLS is configured and valid
 - Config file is loaded and valid
 - Package manager backend is accessible
+- Package cache is fresh (refreshed within 4 hours)
+
+**Cache Refresh on Health Check:**
+- If cache is stale (>4 hours since last update), health check triggers a cache refresh
+- If refresh succeeds: status="healthy", cache_status="fresh"
+- If refresh fails: status="degraded", cache_status="failed"
+- If cache is fresh: status="healthy", cache_status="fresh"
+
+**Cache Status Values:**
+- `fresh` - Cache was updated within the last 4 hours
+- `stale` - Cache is older than 4 hours (triggers refresh)
+- `unknown` - No cache update has occurred yet
+- `failed` - Last cache refresh attempt failed
 
 **NOT Required:**
 - Metrics collection
@@ -299,4 +331,41 @@ Client → [mTLS + IP Check] → [API Layer] → [GET /jobs/{id}]
 
 ---
 
+## Package Cache Management
+
+### Module: `src/packages/cache.rs`
+
+The package cache module manages the local package index state, ensuring that package metadata is current before performing operations.
+
+**Key Components:**
+- `PackageCacheState` - Thread-safe in-memory cache state with Mutex protection
+- `PackageCacheStatus` - Snapshot of cache state for reporting
+- `CacheStateFile` - Persistent state format for serialization
+- `is_fetch_error()` - Detects 404/fetch errors for automatic retry
+- `apply_with_cache_retry()` - Generic retry wrapper for cache-related failures
+- `run_command_with_timeout()` - Executes cache refresh commands with timeout
+
+**State Persistence:**
+- Cache state persists to `/var/lib/linux_patch_api/state/cache.json`
+- State is loaded on service startup and saved after every update
+- Persists `last_cache_update` timestamp and `last_update_success` flag
+- Parent directory is auto-created if missing
+
+**Stale Detection:**
+- Cache is considered stale after 4 hours (`STALE_THRESHOLD_SECS = 14400`)
+- Health check automatically refreshes stale cache
+- Patch apply operations always refresh cache before proceeding (mandatory)
+
+**Refresh-Before-Apply Flow:**
+1. `POST /patches/apply` creates a job and spawns background task
+2. Background task refreshes package cache (mandatory, not configurable)
+3. If refresh fails: job fails immediately with error message
+4. If refresh succeeds: job progresses to 10%, applies patches
+5. If apply fails with 404/fetch error: refresh cache and retry once
+6. If retry also fails: job fails with error
+
+**Cache Refresh Timeout:** 120 seconds (`CACHE_REFRESH_TIMEOUT_SECS`)
+
+---
+
 *Following kiro spec-driven development standards*

BUILD_PACKAGES.md

@@ -1,6 +1,6 @@
 # Linux Patch API - Package Build Guide
 
-This document provides comprehensive instructions for building production-ready Debian (.deb) and RPM (.rpm) packages for the Linux Patch API.
+This document provides comprehensive instructions for building production-ready packages for the Linux Patch API across all supported platforms: Debian/Ubuntu (.deb), RHEL/CentOS/Fedora (.rpm), Arch Linux (.pkg.tar.zst), and Alpine Linux (.apk).
 
 ## Prerequisites
 
@@ -173,6 +173,152 @@ rpm -ql linux-patch-api
 rpm -e linux-patch-api
 ```
 
+## Building Arch Package (.pkg.tar.zst)
+
+### Quick Build
+
+```bash
+cd /path/to/linux_patch_api
+
+# Build release binary
+cargo build --release
+
+# Build Arch package
+chmod +x build-arch.sh
+SKIP_CARGO_BUILD=1 ./build-arch.sh
+
+# Package will be created in releases/
+ls -la releases/*.pkg.tar.zst
+```
+
+### Detailed Build Process
+
+```bash
+# 1. Install build dependencies (Arch Linux)
+sudo pacman -Syu --noconfirm rust cargo systemd git base-devel gcc
+
+# 2. Build release binary
+cargo build --release
+
+# 3. Run build script
+chmod +x build-arch.sh
+./build-arch.sh
+
+# 4. Verify package contents
+bsdtar -tf releases/linux-patch-api-*.pkg.tar.zst
+
+# 5. Verify package info
+pacman -Qi releases/linux-patch-api-*.pkg.tar.zst
+```
+
+### Install Script Hooks
+
+The Arch package includes an `.install` file (`configs/linux-patch-api.install`) that runs automatically on install:
+
+- **post_install**: Creates directories, copies example configs, enables systemd service
+- **post_upgrade**: Reloads systemd daemon
+- **pre_remove**: Stops and disables service
+- **post_remove**: Cleans up empty directories
+
+### Installation Test
+
+```bash
+# Install the package
+sudo pacman -U ./releases/linux-patch-api-*.pkg.tar.zst
+
+# Verify installation
+systemctl status linux-patch-api
+linux-patch-api --version
+
+# Check installed files
+pacman -Ql linux-patch-api
+
+# Verify config files exist
+ls -la /etc/linux_patch_api/
+
+# Remove package
+sudo pacman -R linux-patch-api
+```
+
+**Note:** The build script creates a `builduser` for `makepkg` when running as root (typical in CI environments). The `.install` hook handles directory creation, config copying, and service enablement.
+
+## Building Alpine Package (.apk)
+
+### Quick Build
+
+```bash
+cd /path/to/linux_patch_api
+
+# Build release binary (MUSL target for Alpine)
+cargo build --release --target x86_64-unknown-linux-musl
+
+# Build Alpine package
+chmod +x build-alpine.sh
+SKIP_CARGO_BUILD=1 ./build-alpine.sh
+
+# Package will be created in releases/
+ls -la releases/*.apk
+```
+
+### Detailed Build Process
+
+```bash
+# 1. Install build dependencies (Alpine Linux)
+apk add --no-cache alpine-sdk rust cargo openssl openssl-dev elogind-dev musl-dev abuild gcc
+
+# 2. Add Rust MUSL target
+rustup target add x86_64-unknown-linux-musl
+
+# 3. Build release binary
+cargo build --release --target x86_64-unknown-linux-musl
+
+# 4. Run build script
+chmod +x build-alpine.sh
+./build-alpine.sh
+
+# 5. Verify package contents
+apk verify releases/*.apk
+
+# 6. List package contents
+tar -tzf releases/*.apk
+```
+
+### Install Script Hooks
+
+The Alpine package includes an install script (`configs/linux-patch-api.apk-install`) that runs automatically on install:
+
+- **pre_install**: Creates directories, sets ownership and permissions
+- **post_install**: Copies example configs, adds service to default runlevel
+- **pre_deinstall**: Stops and removes service from runlevel
+- **post_deinstall**: Cleans up empty directories
+
+### Installation Test
+
+```bash
+# Install the package
+sudo apk add --allow-unstable ./releases/linux-patch-api-*.apk
+
+# Verify installation
+rc-service linux-patch-api status
+linux-patch-api --version
+
+# Check installed files
+apk info -L linux-patch-api
+
+# Verify config files exist
+ls -la /etc/linux_patch_api/
+
+# Remove package
+sudo apk del linux-patch-api
+```
+
+**Important:** Alpine uses **OpenRC** instead of systemd. Key differences:
+- Start service: `rc-service linux-patch-api start`
+- Stop service: `rc-service linux-patch-api stop`
+- Check status: `rc-service linux-patch-api status`
+- Service init script: `/etc/init.d/linux-patch-api`
+- The `abuild` tool generates signing keys automatically for CI builds
+
 ## Using the Interactive Installer
 
 For manual deployment without package managers:
@@ -209,15 +355,17 @@ The installer will:
 | `/var/lib/linux_patch_api/` | Data directory | 755 |
 | `/var/log/linux_patch_api/` | Log directory | 755 |
 
-### System User/Group
+### Service Account
 
 | Property | Value |
 |----------|-------|
-| User | linux-patch-api |
-| Group | linux-patch-api |
+| User | root |
+| Group | root |
 | Home | /var/lib/linux_patch_api |
-| Shell | /usr/sbin/nologin |
-| Type | System account |
+| Shell | N/A (systemd service) |
+| Type | Runs as root (required for package management) |
+
+**Note:** The service runs as root because package management operations (apt, dnf, apk, pacman) require root privileges. Security is provided by mTLS + IP whitelist, not process isolation.
 
 ## Supported Distributions
 
@@ -240,6 +388,19 @@ The installer will:
 | AlmaLinux | 8, 9 | ✅ Supported |
 | Rocky Linux | 8, 9 | ✅ Supported |
 
+### Arch Package (.pkg.tar.zst)
+
+| Distribution | Versions | Status |
+|--------------|----------|--------|
+| Arch Linux | Rolling | ✅ Supported |
+| Manjaro | Rolling | ✅ Supported |
+
+### Alpine Package (.apk)
+
+| Distribution | Versions | Status |
+|--------------|----------|--------|
+| Alpine Linux | 3.18+ | ✅ Supported |
+
 ## Troubleshooting
 
 ### Debian Package Issues
@@ -276,9 +437,62 @@ cat ~/rpmbuild/BUILDROOT/*/var/log/rpmbuild.log
 dnf install -y systemd-devel pkgconfig
 ```
 
+### Arch Package Issues
+
+**Error: `makepkg: cannot run as root`**
+```bash
+# The build script handles this automatically by creating builduser
+# If running manually:
+useradd -m builduser
+su - builduser -c "cd /path/to/repo && makepkg -f --noconfirm"
+```
+
+**Error: `install script not found`**
+```bash
+# Ensure linux-patch-api.install is in the same directory as PKGBUILD
+ls -la configs/linux-patch-api.install
+# The build script copies it automatically
+```
+
+**Error: `Permission denied` on config files**
+```bash
+# Verify ownership is root:root
+ls -la /etc/linux_patch_api/
+# Fix if needed:
+sudo chown -R root:root /etc/linux_patch_api/
+sudo chmod 750 /etc/linux_patch_api /etc/linux_patch_api/certs
+```
+
+### Alpine Package Issues
+
+**Error: `abuild: UNTRUSTED signature`**
+```bash
+# The build script handles key generation automatically
+# If running manually:
+abuild-keygen -a -n
+cp /root/.abuild/*.rsa.pub /etc/apk/keys/
+```
+
+**Error: `apk add: ERROR: failed to create directory`**
+```bash
+# Verify the install script ran correctly
+ls -la /etc/linux_patch_api/
+ls -la /var/lib/linux_patch_api/
+# Manually create if needed:
+sudo mkdir -p /etc/linux_patch_api/certs /var/lib/linux_patch_api /var/log/linux_patch_api
+```
+
+**Error: `rc-service: service not found`**
+```bash
+# Verify the init script exists
+ls -la /etc/init.d/linux-patch-api
+# Re-add to default runlevel
+sudo rc-update add linux-patch-api default
+```
+
 ### Service Issues
 
-**Service fails to start:**
+**Service fails to start (systemd):**
 ```bash
 # Check service status
 systemctl status linux-patch-api
@@ -293,6 +507,22 @@ linux-patch-api --config /etc/linux_patch_api/config.yaml --check
 ls -la /etc/linux_patch_api/certs/
 ```
 
+**Service fails to start (OpenRC/Alpine):**
+```bash
+# Check service status
+rc-service linux-patch-api status
+
+# View logs
+cat /var/log/linux_patch_api/linux-patch-api.log
+cat /var/log/linux_patch_api/linux-patch-api.err
+
+# Check configuration
+linux-patch-api --config /etc/linux_patch_api/config.yaml --check
+
+# Verify certificates
+ls -la /etc/linux_patch_api/certs/
+```
+
 ## CI/CD Integration
 
 ### GitHub Actions Example
@@ -383,7 +613,7 @@ jobs:
 - Packages are signed with maintainer GPG key for production deployments
 - All maintainer scripts run with `set -e` for fail-fast behavior
 - Configuration files are marked as conffiles to preserve user modifications
-- System user has minimal privileges (nologin shell, no home directory)
+- Service runs as root (required for package management operations)
 - Directory permissions follow principle of least privilege
 - TLS certificates should be replaced with CA-signed certs in production
 

CHANGELOG.md

@@ -7,6 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [Unreleased]
+
+### Added
+- **Self-enrollment workflow**: Automated host registration with linux_patch_manager
+  - CLI flag: `--enroll <MANAGER_URL>` for enrollment mode
+  - Three-phase enrollment: Registration → Polling (24h timeout) → PKI Provisioning
+  - Automatic certificate provisioning to configured mTLS paths
+  - Automatic manager IP whitelist append after successful enrollment
+  - Configurable polling interval (default 60s) and max attempts (default 1440/24h)
+  - Signal handling for graceful shutdown during enrollment
+- Enrollment configuration section in config.yaml (`enrollment.*`)
+- Identity extraction module (machine-id, FQDN, IP addresses, OS details)
+- PKI bundle validation with PEM format checking
+- Atomic certificate file writing with secure permissions (key=0600, certs=0644)
+- Whitelist auto-append with file locking and duplicate detection
+
+---
+
 ## [1.0.0] - 2026-07-17
 
 ### Added
@@ -191,6 +209,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 | Version | Release Date | Status | Key Milestone |
 |---------|--------------|--------|---------------|
+| Unreleased | TBD | In Development | Self-enrollment feature complete |
 | 1.0.0 | 2026-07-17 | Production | Initial production release |
 | 0.1.0 | 2026-04-09 | Development | Initial development release |
 

CONTRIBUTING.md

@@ -0,0 +1,79 @@
+# Contributing to Linux-Patch-Api
+
+Thank you for your interest in contributing to Linux-Patch-Api! We appreciate every contribution — from bug reports and documentation improvements to new features and security fixes.
+
+## Code of Conduct
+
+This project follows the [Contributor Covenant v2.1](https://www.contributor-covenant.org/version/2/1/code_of_conduct/) code of conduct. By participating, you are expected to uphold this standard. Please report unacceptable behavior to the maintainers.
+
+## How to Contribute
+
+1. **Fork** the repository
+2. Create a **feature branch** from `main`:
+   ```bash
+   git checkout -b feat/my-feature
+   ```
+3. Make your changes
+4. Ensure all CI checks pass:
+   ```bash
+   cargo fmt --check
+   cargo clippy -- -D warnings
+   cargo test
+   ```
+5. **Commit** using conventional commit format (see below)
+6. Open a **Pull Request** against `main`
+
+## Development Setup
+
+### Prerequisites
+
+- **Rust toolchain** (stable) — [rustup](https://rustup.rs/)
+- **System dependencies**:
+  ```bash
+  sudo apt-get install build-essential libsystemd-dev pkg-config libssl-dev
+  ```
+
+### Build & Run
+
+```bash
+cargo build
+cargo test
+```
+
+## Commit Messages
+
+We use [Conventional Commits](https://www.conventionalcommits.org/):
+
+| Prefix   | Usage                  |
+|----------|------------------------|
+| `feat:`  | New feature            |
+| `fix:`   | Bug fix                |
+| `docs:`  | Documentation changes  |
+| `chore:` | Maintenance tasks      |
+| `refactor:` | Code refactoring    |
+| `test:`  | Adding or updating tests |
+| `ci:`    | CI configuration changes |
+
+Example:
+```
+feat: add endpoint for patch rollback
+```
+
+## Pull Request Requirements
+
+- All CI checks must pass (fmt, clippy, test, audit, build)
+- One feature or fix per PR — keep changes focused
+- Include a clear description of what changed and why
+- Update documentation if your change affects behavior
+
+## Reporting Issues
+
+Use [GitHub Issues](https://github.com/Draco-Lunaris/Linux-Patch-Api/issues) to report bugs, request features, or ask questions. Please include:
+
+- Steps to reproduce (for bugs)
+- Expected vs. actual behavior
+- Relevant logs or error messages
+
+## License
+
+By contributing, you agree that your contributions are licensed under the [Apache License 2.0](LICENSE), the same license as this project.

Cargo.lock

@@ -390,6 +390,15 @@ version = "1.0.102"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
 
+[[package]]
+name = "arc-swap"
+version = "1.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a3a1fd6f75306b68087b831f025c712524bcb19aad54e557b1129cfa0a2b207"
+dependencies = [
+ "rustversion",
+]
+
 [[package]]
 name = "arraydeque"
 version = "0.5.1"
@@ -1209,6 +1218,16 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "fs2"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9564fc758e15025b46aa6643b1b77d047d1a56a1aea6e01002ac0c7026876213"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "fs_extra"
 version = "1.3.0"
@@ -1329,8 +1348,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
  "wasi",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -1340,9 +1361,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "899def5c37c4fd7b2664648c28120ecec138e4d395b459e5ca34f9cce2dd77fd"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
  "r-efi 5.3.0",
  "wasip2",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -1454,6 +1477,12 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc0fef456e4baa96da950455cd02c081ca953b141298e41db3fc7e36b1da849c"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "http"
 version = "0.2.12"
@@ -1541,18 +1570,43 @@ dependencies = [
  "want",
 ]
 
+[[package]]
+name = "hyper-rustls"
+version = "0.27.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33ca68d021ef39cf6463ab54c1d0f5daf03377b70561305bb89a8f83aab66e0f"
+dependencies = [
+ "http 1.4.0",
+ "hyper",
+ "hyper-util",
+ "rustls",
+ "tokio",
+ "tokio-rustls",
+ "tower-service",
+ "webpki-roots",
+]
+
 [[package]]
 name = "hyper-util"
 version = "0.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "96547c2556ec9d12fb1578c4eaf448b04993e7fb79cbaad930a656880a6bdfa0"
 dependencies = [
+ "base64 0.22.1",
  "bytes",
+ "futures-channel",
+ "futures-util",
  "http 1.4.0",
  "http-body",
  "hyper",
+ "ipnet",
+ "libc",
+ "percent-encoding",
  "pin-project-lite",
+ "socket2 0.6.3",
  "tokio",
+ "tower-service",
+ "tracing",
 ]
 
 [[package]]
@@ -1688,6 +1742,16 @@ dependencies = [
  "icu_properties",
 ]
 
+[[package]]
+name = "if-addrs"
+version = "0.13.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69b2eeee38fef3aa9b4cc5f1beea8a2444fc00e7377cafae396de3f5c2065e24"
+dependencies = [
+ "libc",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "impl-more"
 version = "0.1.9"
@@ -1726,6 +1790,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "ipnet"
+version = "2.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d98f6fed1fde3f8c21bc40a1abb88dd75e67924f9cffc3ef95607bad8017f8e2"
+
 [[package]]
 name = "is-terminal"
 version = "0.4.17"
@@ -1774,6 +1844,8 @@ version = "0.3.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2964e92d1d9dc3364cae4d718d93f227e3abb088e747d92e0395bfdedf1c12ca"
 dependencies = [
+ "cfg-if",
+ "futures-util",
  "once_cell",
  "wasm-bindgen",
 ]
@@ -1859,7 +1931,7 @@ dependencies = [
 
 [[package]]
 name = "linux-patch-api"
-version = "0.1.0"
+version = "1.3.1"
 dependencies = [
  "actix",
  "actix-rt",
@@ -1868,24 +1940,34 @@ dependencies = [
  "actix-web-actors",
  "addr",
  "anyhow",
+ "arc-swap",
  "async-channel",
+ "base64 0.22.1",
  "chrono",
  "clap",
  "config",
  "criterion",
+ "fs2",
  "futures-util",
+ "hex",
+ "if-addrs",
  "notify",
  "pidlock",
+ "rand 0.8.6",
+ "rcgen",
+ "reqwest",
  "rustls",
  "rustls-pemfile",
  "serde",
  "serde_json",
  "serde_yaml",
  "serial_test",
+ "socket2 0.5.10",
  "sysinfo",
  "systemd",
  "tempfile",
  "thiserror 1.0.69",
+ "time",
  "tokio",
  "tokio-rustls",
  "tokio-test",
@@ -1893,6 +1975,7 @@ dependencies = [
  "tracing",
  "tracing-appender",
  "tracing-subscriber",
+ "url",
  "uuid",
  "wiremock",
  "x509-parser",
@@ -1942,6 +2025,12 @@ version = "0.4.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
 
+[[package]]
+name = "lru-slab"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"
+
 [[package]]
 name = "matchers"
 version = "0.2.0"
@@ -2178,6 +2267,16 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df94ce210e5bc13cb6651479fa48d14f601d9858cfe0467f43ae157023b938d3"
 
+[[package]]
+name = "pem"
+version = "3.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d30c53c26bc5b31a98cd02d20f25a7c8567146caf63ed593a9d87b2775291be"
+dependencies = [
+ "base64 0.22.1",
+ "serde_core",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.2"
@@ -2342,6 +2441,61 @@ version = "2.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "33cb294fe86a74cbcf50d4445b37da762029549ebeea341421c7c70370f86cac"
 
+[[package]]
+name = "quinn"
+version = "0.11.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e20a958963c291dc322d98411f541009df2ced7b5a4f2bd52337638cfccf20"
+dependencies = [
+ "bytes",
+ "cfg_aliases",
+ "pin-project-lite",
+ "quinn-proto",
+ "quinn-udp",
+ "rustc-hash",
+ "rustls",
+ "socket2 0.6.3",
+ "thiserror 2.0.18",
+ "tokio",
+ "tracing",
+ "web-time",
+]
+
+[[package]]
+name = "quinn-proto"
+version = "0.11.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "434b42fec591c96ef50e21e886936e66d3cc3f737104fdb9b737c40ffb94c098"
+dependencies = [
+ "bytes",
+ "getrandom 0.3.4",
+ "lru-slab",
+ "rand 0.9.4",
+ "ring",
+ "rustc-hash",
+ "rustls",
+ "rustls-pki-types",
+ "slab",
+ "thiserror 2.0.18",
+ "tinyvec",
+ "tracing",
+ "web-time",
+]
+
+[[package]]
+name = "quinn-udp"
+version = "0.5.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "addec6a0dcad8a8d96a771f815f0eaf55f9d1805756410b39f5fa81332574cbd"
+dependencies = [
+ "cfg_aliases",
+ "libc",
+ "once_cell",
+ "socket2 0.6.3",
+ "tracing",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.45"
@@ -2370,10 +2524,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5ca0ecfa931c29007047d1bc58e623ab12e5590e8c7cc53200d5202b69266d8a"
 dependencies = [
  "libc",
- "rand_chacha",
+ "rand_chacha 0.3.1",
  "rand_core 0.6.4",
 ]
 
+[[package]]
+name = "rand"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44c5af06bb1b7d3216d91932aed5265164bf384dc89cd6ba05cf59a35f5f76ea"
+dependencies = [
+ "rand_chacha 0.9.0",
+ "rand_core 0.9.5",
+]
+
 [[package]]
 name = "rand"
 version = "0.10.1"
@@ -2395,6 +2559,16 @@ dependencies = [
  "rand_core 0.6.4",
 ]
 
+[[package]]
+name = "rand_chacha"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.9.5",
+]
+
 [[package]]
 name = "rand_core"
 version = "0.6.4"
@@ -2404,6 +2578,15 @@ dependencies = [
  "getrandom 0.2.17",
 ]
 
+[[package]]
+name = "rand_core"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76afc826de14238e6e8c374ddcc1fa19e374fd8dd986b0d2af0d02377261d83c"
+dependencies = [
+ "getrandom 0.3.4",
+]
+
 [[package]]
 name = "rand_core"
 version = "0.10.1"
@@ -2430,6 +2613,20 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "rcgen"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75e669e5202259b5314d1ea5397316ad400819437857b90861765f24c4cf80a2"
+dependencies = [
+ "pem",
+ "ring",
+ "rustls-pki-types",
+ "time",
+ "x509-parser",
+ "yasna",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.5.18"
@@ -2483,6 +2680,44 @@ version = "0.8.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc897dd8d9e8bd1ed8cdad82b5966c3e0ecae09fb1907d58efaa013543185d0a"
 
+[[package]]
+name = "reqwest"
+version = "0.12.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eddd3ca559203180a307f12d114c268abf583f59b03cb906fd0b3ff8646c1147"
+dependencies = [
+ "base64 0.22.1",
+ "bytes",
+ "futures-core",
+ "http 1.4.0",
+ "http-body",
+ "http-body-util",
+ "hyper",
+ "hyper-rustls",
+ "hyper-util",
+ "js-sys",
+ "log",
+ "percent-encoding",
+ "pin-project-lite",
+ "quinn",
+ "rustls",
+ "rustls-pki-types",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sync_wrapper",
+ "tokio",
+ "tokio-rustls",
+ "tower",
+ "tower-http",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "webpki-roots",
+]
+
 [[package]]
 name = "ring"
 version = "0.17.14"
@@ -2519,6 +2754,12 @@ dependencies = [
  "ordered-multimap",
 ]
 
+[[package]]
+name = "rustc-hash"
+version = "2.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94300abf3f1ae2e2b8ffb7b58043de3d399c73fa6f4b73826402a5c457614dbe"
+
 [[package]]
 name = "rustc_version"
 version = "0.4.1"
@@ -2559,6 +2800,7 @@ dependencies = [
  "aws-lc-rs",
  "log",
  "once_cell",
+ "ring",
  "rustls-pki-types",
  "rustls-webpki",
  "subtle",
@@ -2580,6 +2822,7 @@ version = "1.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "30a7197ae7eb376e574fe940d068c30fe0462554a3ddbe4eca7838e049c937a9"
 dependencies = [
+ "web-time",
  "zeroize",
 ]
 
@@ -2877,6 +3120,15 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "sync_wrapper"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bf256ce5efdfa370213c1dabab5935a12e49f2c58d15e9eac2870d3b4f27263"
+dependencies = [
+ "futures-core",
+]
+
 [[package]]
 name = "synstructure"
 version = "0.13.2"
@@ -3040,6 +3292,21 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "tinyvec"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e61e67053d25a4e82c844e8424039d9745781b3fc4f32b8d55ed50f5f667ef3"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
 [[package]]
 name = "tokio"
 version = "1.52.1"
@@ -3166,6 +3433,51 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d99f8c9a7727884afe522e9bd5edbfc91a3312b36a77b5fb8926e4c31a41801"
 
+[[package]]
+name = "tower"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebe5ef63511595f1344e2d5cfa636d973292adc0eec1f0ad45fae9f0851ab1d4"
+dependencies = [
+ "futures-core",
+ "futures-util",
+ "pin-project-lite",
+ "sync_wrapper",
+ "tokio",
+ "tower-layer",
+ "tower-service",
+]
+
+[[package]]
+name = "tower-http"
+version = "0.6.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68d6fdd9f81c2819c9a8b0e0cd91660e7746a8e6ea2ba7c6b2b057985f6bcb51"
+dependencies = [
+ "bitflags 2.11.1",
+ "bytes",
+ "futures-util",
+ "http 1.4.0",
+ "http-body",
+ "pin-project-lite",
+ "tower",
+ "tower-layer",
+ "tower-service",
+ "url",
+]
+
+[[package]]
+name = "tower-layer"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "121c2a6cda46980bb0fcd1647ffaf6cd3fc79a013de288782836f6df9c48780e"
+
+[[package]]
+name = "tower-service"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"
+
 [[package]]
 name = "tracing"
 version = "0.1.44"
@@ -3437,6 +3749,16 @@ dependencies = [
  "wasm-bindgen-shared",
 ]
 
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.68"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f371d383f2fb139252e0bfac3b81b265689bf45b6874af544ffa4c975ac1ebf8"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
 version = "0.2.118"
@@ -3513,6 +3835,25 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "web-time"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a6580f308b1fad9207618087a65c04e7a10bc77e02c8e84e9b00dd4b12fa0bb"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "webpki-roots"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "52f5ee44c96cf55f1b349600768e3ece3a8f26010c05265ab73f945bb1a2eb9d"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -3682,6 +4023,15 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.61.2"
@@ -3965,6 +4315,7 @@ dependencies = [
  "lazy_static",
  "nom",
  "oid-registry",
+ "ring",
  "rusticata-macros",
  "thiserror 1.0.69",
  "time",
@@ -3981,6 +4332,15 @@ dependencies = [
  "hashlink",
 ]
 
+[[package]]
+name = "yasna"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e17bb3549cc1321ae1296b9cdc2698e2b6cb1992adfa19a8c72e5b7a738f44cd"
+dependencies = [
+ "time",
+]
+
 [[package]]
 name = "yoke"
 version = "0.8.2"

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "linux-patch-api"
-version = "0.1.0"
+version = "1.3.2"
 edition = "2021"
 authors = ["Echo <echo@moon-dragon.us>"]
 description = "Secure remote package management API for Linux systems"
@@ -20,10 +20,10 @@ actix-tls = { version = "3", features = ["rustls-0_23"] }
 tokio = { version = "1", features = ["full"] }
 
 # TLS/mTLS (rustls for modern TLS 1.3)
-rustls = "0.23"
+rustls = { version = "0.23", features = ["aws_lc_rs"] }
 rustls-pemfile = "2"
 tokio-rustls = "0.26"
-x509-parser = "0.16"
+x509-parser = { version = "0.16", features = ["verify"] }
 
 # WebSocket support (actix-web-actors provides WebSocket for Actix-web)
 tokio-tungstenite = "0.21"
@@ -48,6 +48,7 @@ uuid = { version = "1", features = ["v4", "serde"] }
 
 # Time/Date
 chrono = { version = "0.4", features = ["serde"] }
+time = "0.3"
 
 # Error handling
 thiserror = "1"
@@ -61,6 +62,10 @@ sysinfo = "0.30"
 
 # Network utilities
 addr = "0.15"
+if-addrs = "0.13"
+
+# HTTP client for enrollment communication
+reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
 
 # Clap for CLI arguments
 clap = { version = "4", features = ["derive", "env"] }
@@ -69,14 +74,46 @@ clap = { version = "4", features = ["derive", "env"] }
 systemd = "0.10"
 pidlock = "0.2"
 
+# URL parsing
+url = "2"
+
+# Socket options (SO_REUSEADDR)
+socket2 = { version = "0.5", features = ["all"] }
+
+# File locking for concurrent-safe whitelist modifications
+fs2 = "0.4"
+
+# Atomic swapping for CRL state updates without rebuilding ServerConfig
+arc-swap = "1"
+
+# Base64 decoding for PEM CRL parsing
+base64 = "0.22"
+
 [dev-dependencies]
 actix-rt = "2"
 tokio-test = "0.4"
 wiremock = "0.6"
 serial_test = "3"
 tempfile = "3"
+rcgen = { version = "0.13", features = ["pem", "x509-parser"] }
+rand = "0.8"
+hex = "0.4"
+time = { version = "0.3", features = ["std"] }
 criterion = { version = "0.5", features = ["html_reports"] }
 
+# Integration tests in subdirectories
+[[test]]
+name = "enroll_identity"
+path = "tests/unit/enroll_identity.rs"
+
+[[test]]
+name = "enrollment_test"
+path = "tests/integration/enrollment_test.rs"
+
+[[test]]
+name = "enrollment_e2e"
+path = "tests/e2e/test_enrollment_e2e.rs"
+
 [[bench]]
 name = "api_benchmarks"
 harness = false

DEPLOYMENT_GUIDE.md

@@ -16,6 +16,7 @@ Complete guide for deploying Linux Patch API to production environments.
 - [RHEL/CentOS/Fedora Deployment](#rhelcentosfedora-deployment)
 - [Manual Deployment](#manual-deployment)
 - [Certificate Deployment](#certificate-deployment)
+- [Self-Enrollment Deployment](#self-enrollment-deployment)
 - [Configuration](#configuration)
 - [systemd Service Management](#systemd-service-management)
 - [Monitoring and Logging](#monitoring-and-logging)
@@ -445,6 +446,328 @@ shred -u /tmp/client001.key.pem
 
 ---
 
+## Self-Enrollment Deployment
+
+Self-enrollment allows a new host to automatically request and receive mTLS certificates from the `linux_patch_manager` without manual PKI distribution. The daemon supports two enrollment modes:
+
+1. **Auto-enrollment (recommended):** When `enrollment.manager_url` is configured in `config.yaml`, the daemon automatically enrolls on startup when certificates are missing or invalid. After provisioning, it continues to normal mTLS server startup.
+
+2. **Manual enrollment:** Run `linux-patch-api --enroll <manager_url>` explicitly. The process provisions certificates and **exits** — it does NOT start the server. Start the service separately after enrollment completes.
+
+### How It Works
+
+The enrollment workflow operates in three phases:
+
+1. **Registration:** Extracts `/etc/machine-id`, FQDN, IP address, and OS details. Submits an unauthenticated `POST /api/v1/enroll` request to the manager. Receives a temporary `polling_token`.
+2. **Polling & Approval:** Enters a polling loop querying `GET /api/v1/enroll/status/{token}` (default: every 60 seconds, up to 1440 attempts = 24 hours). Aborts on HTTP 403/404 (denied/purged). The polling token is persisted to `config.yaml` for resume after service restart.
+3. **Provisioning:** On HTTP 200, downloads the PKI bundle (`ca.crt`, `server.crt`, `server.key`), writes certificates to configured mTLS paths, appends manager IP to whitelist. For auto-enrollment, transitions to standard mTLS listening mode. For `--enroll`, exits with code 0.
+
+### Certificate Validation
+
+On startup, the daemon validates all configured TLS certificates before attempting to bind the listening port:
+
+1. **Existence:** All three cert files must exist at configured paths
+2. **Parse:** Each file must be valid PEM (X.509 for certs, PKCS#8/PKCS#1 for keys)
+3. **Expiry:** Certs must not be expired. Certs expiring within `cert_renewal_threshold_days` (default 7) trigger a warning
+4. **Key match:** Server cert public key must correspond to server key private key
+5. **CA trust:** Server cert must be signed by the CA cert
+
+Validation results determine startup behavior:
+
+| Result | Action |
+|--------|--------|
+| Valid | Start normally with mTLS |
+| ExpiringSoon | Log warning, start normally, schedule re-enrollment |
+| Missing/Corrupt/Expired/KeyMismatch/Untrusted | Auto-enroll if `enrollment.manager_url` configured, otherwise exit with guidance |
+
+### Prerequisites
+
+| Requirement | Details |
+|-------------|---------|
+| Manager URL | Must be accessible from the host (HTTPS) |
+| Network Connectivity | Outbound HTTPS to manager endpoint |
+| DNS Resolution | Manager hostname must resolve correctly |
+| systemd | Version 237+ for service management |
+| Root Access | Required for certificate file writes |
+
+**Verification before enrollment:**
+```bash
+# Verify network connectivity to manager
+curl -I https://manager.example.com
+
+# Verify DNS resolution
+nslookup manager.example.com
+
+# Verify outbound HTTPS works
+curl -ks https://manager.example.com/api/v1/health
+```
+
+### Deployment Method 1: Auto-Enrollment (Recommended)
+
+The simplest deployment. Just install the package, configure the manager URL, and start the service. The daemon handles the rest.
+
+#### Step 1: Install Package
+
+```bash
+# Debian/Ubuntu
+dpkg -i linux-patch-api_1.2.0-1_amd64.deb
+
+# RHEL/CentOS/Fedora
+rpm -ivh linux-patch-api-1.2.0-1.x86_64.rpm
+```
+
+#### Step 2: Configure Enrollment URL
+
+```bash
+# Edit the config to add manager URL
+cat >> /etc/linux_patch_api/config.yaml <<EOF
+
+enrollment:
+  manager_url: "https://linux-patch-manager-dev.moon-dragon.us"
+  polling_interval_seconds: 60
+  max_poll_attempts: 1440
+  cert_renewal_threshold_days: 7
+EOF
+```
+
+#### Step 3: Start Service
+
+```bash
+# Enable and start
+systemctl enable linux-patch-api
+systemctl start linux-patch-api
+
+# Watch auto-enrollment progress
+journalctl -u linux-patch-api -f
+```
+
+The daemon will:
+1. Validate certificates → find them missing
+2. Read `enrollment.manager_url` → begin auto-enrollment
+3. Register with manager, poll for approval
+4. Provision certificates after admin approval
+5. Continue to normal mTLS server startup
+
+**No manual `--enroll` command needed.** The service self-heals on restart if certificates are missing or invalid.
+
+#### Step 4: Admin Approval (Manager Side)
+
+On the `linux_patch_manager` dashboard:
+1. Navigate to Pending Enrollments
+2. Review host details (machine-id, FQDN, IP, OS)
+3. Approve the enrollment request
+4. Manager provisions PKI bundle and signals approval
+
+#### Step 5: Verify Successful Enrollment
+
+```bash
+# Check service is running
+systemctl status linux-patch-api
+
+# Verify certificates exist
+ls -la /etc/linux_patch_api/certs/
+
+# Test mTLS connection
+curl --cacert /etc/linux_patch_api/certs/ca.pem \
+     --cert /path/to/client.pem \
+     --key /path/to/client.key.pem \
+     https://localhost:12443/health
+```
+
+### Deployment Method 2: Manual Enrollment
+
+For environments where auto-enrollment is not desired, or for initial setup before the service is enabled.
+
+#### Step 1: Install Package
+
+```bash
+# Debian/Ubuntu
+dpkg -i linux-patch-api_1.2.0-1_amd64.deb
+
+# RHEL/CentOS/Fedora
+rpm -ivh linux-patch-api-1.2.0-1.x86_64.rpm
+```
+
+#### Step 2: Run Enrollment Command
+
+```bash
+# Basic enrollment with manager URL
+sudo linux-patch-api --enroll https://linux-patch-manager-dev.moon-dragon.us
+
+# With verbose logging for troubleshooting
+sudo linux-patch-api --enroll https://linux-patch-manager-dev.moon-dragon.us --verbose
+```
+
+**Important:** The `--enroll` command provisions certificates and **exits**. It does NOT start the server. This prevents port conflicts with the systemd service.
+
+The enrollment process will:
+- Extract machine identity from `/etc/machine-id` and system properties
+- Submit registration request to manager
+- Enter polling loop (logs progress every 60 seconds)
+- Await admin approval on the manager side
+- Download and install certificates automatically
+- Update IP whitelist with manager address
+- Print: "Enrollment complete. Start service: systemctl start linux-patch-api"
+- Exit with code 0
+
+#### Step 3: Start Service
+
+```bash
+systemctl enable linux-patch-api
+systemctl start linux-patch-api
+systemctl status linux-patch-api
+```
+
+### Certificate Renewal
+
+Certificates can be renewed manually or automatically:
+
+```bash
+# Manual renewal
+sudo linux-patch-api --renew-certs
+
+# Auto-renewal: certs expiring within cert_renewal_threshold_days trigger re-enrollment on startup
+```
+
+### Configuration Options
+
+Enrollment behavior can be tuned via the `enrollment` section in `/etc/linux_patch_api/config.yaml`:
+
+```yaml
+# Enrollment Configuration
+enrollment:
+  manager_url: "https://linux-patch-manager-dev.moon-dragon.us"
+  polling_interval_seconds: 60    # Time between approval polls (default: 60)
+  max_poll_attempts: 1440         # Maximum poll attempts (default: 1440 = 24 hours)
+  polling_token: ""               # Auto-populated during enrollment (do not edit)
+  cert_renewal_threshold_days: 7  # Days before expiry to trigger re-enrollment
+```
+
+**Parameter Reference:**
+
+| Parameter | Default | Description |
+|-----------|---------|-------------|
+| `manager_url` | (none) | Manager URL for auto-enrollment. Required for auto-enrollment on startup. |
+| `polling_interval_seconds` | 60 | Seconds between approval status polls. Minimum: 10 |
+| `max_poll_attempts` | 1440 | Maximum polling attempts before timeout. Effective timeout = interval × attempts |
+| `polling_token` | (empty) | Auto-populated during enrollment for resume after restart. Do not edit manually. |
+| `cert_renewal_threshold_days` | 7 | Days before cert expiry to trigger automatic re-enrollment |
+
+**Effective Timeout Calculation:**
+- Default: 60s × 1440 = 86,400 seconds (24 hours)
+- Custom example: 30s × 720 = 21,600 seconds (6 hours)
+
+### Troubleshooting
+
+| Symptom | Cause | Resolution |
+|---------|-------|------------|
+| `Enrollment failed: connection refused` | Manager not reachable | Verify manager URL, check firewall rules |
+| `Enrollment failed: DNS resolution error` | Hostname cannot resolve | Check `/etc/resolv.conf`, verify DNS |
+| `HTTP 403 - Enrollment denied` | Admin rejected request | Contact manager admin to approve enrollment |
+| `HTTP 404 - Token not found` | Token expired/purged | Re-run enrollment command with `--enroll` flag |
+| `Polling timeout after N attempts` | Max attempts exceeded | Increase `max_poll_attempts` in config, re-enroll |
+| `Rate limited: 429 Too Many Requests` | Polling too frequently | Ensure `polling_interval_seconds >= 10` |
+| `Permission denied writing certificates` | Insufficient privileges | Run with `sudo` or as root user |
+| `Whitelist update failed` | File permission issue | Verify `/etc/linux_patch_api/` is writable by service user |
+
+**Diagnostic Commands:**
+```bash
+# Check enrollment logs
+journalctl -u linux-patch-api --since "1 hour ago"
+
+# Test manager connectivity
+curl -v https://manager.example.com/api/v1/enroll
+
+# Verify DNS resolution
+dig manager.example.com
+nslookup manager.example.com
+
+# Check certificate paths are writable
+ls -la /etc/linux_patch_api/certs/
+sudo touch /etc/linux_patch_api/certs/test && sudo rm /etc/linux_patch_api/certs/test
+```
+
+### Post-Enrollment Verification
+
+After successful enrollment, verify the following:
+
+1. **Certificate Files Exist:**
+   ```bash
+   ls -la /etc/linux_patch_api/certs/
+   # Expected: ca.pem (644), server.pem (644), server.key (600)
+   ```
+
+2. **Certificate Validity:**
+   ```bash
+   openssl x509 -in /etc/linux_patch_api/certs/server.pem -text -noout | grep -A2 "Validity"
+   openssl x509 -in /etc/linux_patch_api/certs/ca.pem -text -noout | grep -A2 "Validity"
+   ```
+
+3. **Whitelist Contains Manager IP:**
+   ```bash
+   cat /etc/linux_patch_api/whitelist.yaml
+   # Should contain manager IP address in entries list
+   ```
+
+4. **mTLS Connection Test:**
+   ```bash
+   curl --cacert /etc/linux_patch_api/certs/ca.pem \
+        --cert /path/to/client.pem \
+        --key /path/to/client.key.pem \
+        https://localhost:12443/health
+   # Expected: {"status": "ok"}
+   ```
+
+5. **Service Status:**
+   ```bash
+   systemctl status linux-patch-api
+   # Expected: active (running)
+   ```
+
+### Rollback and Re-Enrollment
+
+#### Removing Enrolled Certificates
+
+```bash
+# Stop the service
+sudo systemctl stop linux-patch-api
+
+# Remove provisioned certificates
+sudo rm -f /etc/linux_patch_api/certs/ca.pem
+sudo rm -f /etc/linux_patch_api/certs/server.pem
+sudo rm -f /etc/linux_patch_api/certs/server.key
+
+# Revert whitelist (remove manager IP entry)
+sudo vi /etc/linux_patch_api/whitelist.yaml
+```
+
+#### Re-Enrolling a Host
+
+```bash
+# Run enrollment again with same or different manager
+sudo linux-patch-api --enroll https://manager.example.com
+
+# Or enroll with a different manager
+sudo linux-patch-api --enroll https://new-manager.example.com
+```
+
+**Notes:**
+- Re-enrollment overwrites existing certificates in the configured paths
+- The previous polling token is discarded; a new registration request is submitted
+- If re-enrolling with the same manager, ensure the old enrollment was purged or approved
+
+### Enrollment vs Manual Certificate Deployment
+
+| Aspect | Self-Enrollment | Manual PKI |
+|--------|----------------|------------|
+| Certificate distribution | Automatic from manager | Manual SCP/copy |
+| Whitelist management | Auto-populated with manager IP | Manual configuration |
+| Admin approval required | Yes (on manager side) | N/A |
+| Network dependency | Requires outbound HTTPS to manager | None after cert distribution |
+| Best for | Large-scale deployments, automation | Air-gapped environments, single hosts |
+
+---
+
 ## Configuration
 
 ### Configuration File Locations

Dockerfile.arch

@@ -1,13 +0,0 @@
-# Arch Linux container with Node.js for GitHub Actions support
-# Used for Arch package builds in CI/CD
-FROM archlinux:latest
-
-# Update system and install Node.js (required for GitHub Actions JavaScript-based actions)
-RUN pacman -Syu --noconfirm nodejs npm && \
-    pacman -Scc --noconfirm
-
-# Verify node is available
-RUN node --version
-
-# Default command (not used in CI, but good for testing)
-CMD ["/bin/bash"]

Dockerfile.rpm

@@ -1,14 +0,0 @@
-# Fedora container with Node.js for GitHub Actions support
-# Used for RPM package builds in CI/CD
-FROM fedora:latest
-
-# Install Node.js (required for GitHub Actions JavaScript-based actions)
-# Also install dnf-plugins-core for potential multiarch support
-RUN dnf install -y nodejs dnf-plugins-core && \
-    dnf clean all
-
-# Verify node is available
-RUN node --version
-
-# Default command (not used in CI, but good for testing)
-CMD ["/bin/bash"]

LICENSE

@@ -0,0 +1,190 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+
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+
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+      the terms of any separate license agreement you may have executed
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+   6. Trademarks. This License does not grant permission to use the trade
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+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
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+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
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+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   Copyright 2025-2026 Draco Lunaris
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
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+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

README.md

@@ -2,7 +2,7 @@
 
 **Version:** 1.0.0  
 **Status:** Production Ready  
-**License:** Internal Use Only  
+**License:** [Apache 2.0](LICENSE)  
 
 Secure REST API for remote package and patch management on Linux systems.
 
@@ -13,6 +13,7 @@ Secure REST API for remote package and patch management on Linux systems.
 - [Overview](#overview)
 - [Features](#features)
 - [Quick Start](#quick-start)
+- [Usage Examples](#usage-examples)
 - [Installation](#installation)
 - [Configuration](#configuration)
 - [API Usage](#api-usage)
@@ -65,6 +66,7 @@ Linux Patch API provides a secure, production-ready interface for managing softw
 ### Security Features
 - mTLS certificate authentication (TLS 1.3 only)
 - IP whitelist enforcement (deny by default)
+- Automated self-enrollment with linux_patch_manager (no manual PKI distribution)
 - Comprehensive audit logging (systemd journal)
 - Systemd hardening and process isolation
 - File permission enforcement
@@ -137,10 +139,59 @@ curl --cacert ca.pem \
 
 ---
 
+## Usage Examples
+
+### Standard Startup (Existing Certificates)
+
+When certificates are already provisioned, start with the configuration path:
+
+```bash
+sudo linux-patch-api --config /etc/linux_patch_api/config.yaml
+```
+
+Or via systemd (recommended for production):
+
+```bash
+systemctl enable linux-patch-api
+systemctl start linux-patch-api
+```
+
+### Self-Enrollment with Manager
+
+Bootstrap a new host by automatically requesting certificates from the manager:
+
+```bash
+sudo linux-patch-api --enroll https://manager.example.com
+```
+
+The enrollment workflow:
+1. Extracts machine identity (`/etc/machine-id`, FQDN, OS details)
+2. Registers with manager (`POST /api/v1/enroll`)
+3. Polls for admin approval (default: every 60 seconds, up to 24 hours)
+4. Downloads PKI bundle on approval
+5. Writes certificates and updates whitelist automatically
+6. Starts mTLS server without requiring a restart
+
+```bash
+# Enrollment with verbose logging
+sudo linux-patch-api --enroll https://manager.example.com --verbose
+```
+
+For detailed enrollment procedures, see [DEPLOYMENT_GUIDE.md - Self-Enrollment Deployment](./DEPLOYMENT_GUIDE.md#self-enrollment-deployment).
+
+---
+
 ## Installation
 
 ### Package Installation
 
+All platform packages produce identical installation results:
+- Creates `/etc/linux_patch_api/`, `/etc/linux_patch_api/certs/`, `/var/lib/linux_patch_api/`, `/var/log/linux_patch_api/`
+- Copies example configs to live configs if not already present
+- Enables the service (does not start automatically)
+- Sets correct permissions (750 on config dirs, 755 on data/log dirs)
+- Ownership: root:root (service runs as root)
+
 #### Debian/Ubuntu (.deb)
 
 ```bash
@@ -153,52 +204,173 @@ apt-get install -f -y
 # Verify installation
 systemctl status linux-patch-api
 linux-patch-api --version
+
+# Check installed files
+dpkg -L linux-patch-api
+
+# Remove package (keeping configs)
+dpkg -r linux-patch-api
+
+# Purge package (removing all configs)
+dpkg -P linux-patch-api
 ```
 
+**Prerequisites:** `systemd`, `libsystemd0`
+
+**Post-install:** The package automatically copies example configs, enables the service, and prints next steps. Configure `/etc/linux_patch_api/config.yaml` and place TLS certificates in `/etc/linux_patch_api/certs/` before starting.
+
 #### RHEL/CentOS/Fedora (.rpm)
 
 ```bash
-# Install the package
-rpm -ivh linux-patch-api-1.0.0-1.x86_64.rpm
+# Install the package (recommended - resolves dependencies automatically)
+dnf install -y ./linux-patch-api-1.0.0-1.el9.x86_64.rpm
+
+# Or with yum
+yum install -y ./linux-patch-api-1.0.0-1.el9.x86_64.rpm
+
+# Or with rpm (does NOT resolve dependencies)
+rpm -ivh linux-patch-api-1.0.0-1.el9.x86_64.rpm
 
 # Verify installation
 systemctl status linux-patch-api
 linux-patch-api --version
+
+# Check installed files
+rpm -ql linux-patch-api
+
+# Remove package
+rpm -e linux-patch-api
 ```
 
+**Prerequisites (auto-resolved with dnf/yum):** `systemd`, `libsystemd`, `openssl-libs`, `ca-certificates`
+
+**Post-install:** The package automatically creates directories, copies example configs, enables the service, and prints next steps. Configure `/etc/linux_patch_api/config.yaml` and place TLS certificates in `/etc/linux_patch_api/certs/` before starting.
+
+**Note:** Use `dnf install` or `yum install` instead of `rpm -ivh` to automatically resolve dependencies. The `rpm -ivh` command will fail if required packages are not already installed.
+
+#### Arch Linux (.pkg.tar.zst)
+
+```bash
+# Install the package
+sudo pacman -U ./linux-patch-api-1.0.0-1-x86_64.pkg.tar.zst
+
+# Verify installation
+systemctl status linux-patch-api
+linux-patch-api --version
+
+# Check installed files
+pacman -Ql linux-patch-api
+
+# Remove package
+sudo pacman -R linux-patch-api
+```
+
+**Prerequisites:** `systemd` (included by default on Arch)
+
+**Post-install:** The package automatically creates directories, copies example configs, enables the service, and prints next steps. Configure `/etc/linux_patch_api/config.yaml` and place TLS certificates in `/etc/linux_patch_api/certs/` before starting.
+
+**Note:** Arch uses systemd by default. The install hook runs `systemctl enable` but does not start the service. You must configure before starting.
+
+#### Alpine Linux (.apk)
+
+```bash
+# Install the package
+sudo apk add --allow-unstable ./linux-patch-api-1.0.0-r0.apk
+
+# Verify installation
+rc-service linux-patch-api status
+linux-patch-api --version
+
+# Check installed files
+apk info -L linux-patch-api
+
+# Remove package
+sudo apk del linux-patch-api
+```
+
+**Prerequisites:** `openrc` (included by default on Alpine)
+
+**Post-install:** The package automatically creates directories, copies example configs, adds the service to the default runlevel, and prints next steps. Configure `/etc/linux_patch_api/config.yaml` and place TLS certificates in `/etc/linux_patch_api/certs/` before starting.
+
+**Important differences from systemd-based systems:**
+- Alpine uses **OpenRC** instead of systemd. Use `rc-service` commands instead of `systemctl`
+- Start service: `rc-service linux-patch-api start`
+- Stop service: `rc-service linux-patch-api stop`
+- Check status: `rc-service linux-patch-api status`
+- The service is added to the `default` runlevel automatically on install
+- Service init script: `/etc/init.d/linux-patch-api`
+
 ### Manual Installation
 
 For systems without package manager support:
 
 ```bash
 # Run interactive installer (requires root)
-./install.sh
+sudo ./install.sh
 ```
 
 The installer will:
 - Detect operating system
-- Create system user and group
-- Set up directory structure
-- Install binary and configuration files
+- Create directory structure (`/etc/linux_patch_api/`, `/var/lib/linux_patch_api/`, `/var/log/linux_patch_api/`)
+- Install binary to `/usr/bin/linux-patch-api`
+- Install example configs
 - Configure systemd service
+- Set correct permissions
 
 ### Building from Source
 
+#### Prerequisites (all platforms)
+
+- Rust toolchain (stable channel, 1.75+)
+- OpenSSL development headers
+- systemd development headers
+- C compiler (gcc)
+
+#### Build Debian Package (.deb)
+
 ```bash
-# Clone repository
-git clone https://gitea.internal/linux-patch-api.git
-cd linux-patch-api
-
-# Build release binary
-cargo build --release --target x86_64-unknown-linux-gnu
-
-# Build Debian package
-dpkg-buildpackage -us -uc -b
-
-# Or build RPM package
-rpmbuild -ba linux-patch-api.spec
+# On Debian/Ubuntu
+apt-get install -y build-essential debhelper pkg-config libsystemd-dev libssl-dev cargo rustc
+cargo build --release
+sudo dpkg-buildpackage -us -uc -b
 ```
 
+#### Build RPM Package (.rpm)
+
+```bash
+# On Fedora/RHEL/CentOS
+dnf install -y rpm-build cargo rust gcc openssl-devel systemd-devel pkgconfig
+cargo build --release --target x86_64-unknown-linux-gnu
+chmod +x build-rpm.sh
+./build-rpm.sh
+```
+
+**Note:** The RPM spec includes `BuildRequires` for native RPM build environments. When building in CI containers (where deps are pre-installed via apt-get), these are informational only.
+
+#### Build Arch Package (.pkg.tar.zst)
+
+```bash
+# On Arch Linux/Manjaro
+pacman -Syu --noconfirm rust cargo systemd git base-devel gcc
+cargo build --release
+chmod +x build-arch.sh
+SKIP_CARGO_BUILD=1 ./build-arch.sh
+```
+
+**Note:** The build script creates a `builduser` for `makepkg` when running as root (typical in CI). The `.install` hook handles directory creation, config copying, and service enablement.
+
+#### Build Alpine Package (.apk)
+
+```bash
+# On Alpine Linux 3.18+
+apk add --no-cache alpine-sdk rust cargo openssl openssl-dev elogind-dev musl-dev abuild gcc
+cargo build --release --target x86_64-unknown-linux-musl
+chmod +x build-alpine.sh
+SKIP_CARGO_BUILD=1 ./build-alpine.sh
+```
+
+**Important:** Alpine requires the `x86_64-unknown-linux-musl` target for static linking. The build script handles `abuild` key generation and runs as a `builduser` when executed as root.
+
 See [BUILD_PACKAGES.md](./BUILD_PACKAGES.md) for detailed build instructions.
 
 ---
@@ -519,7 +691,9 @@ linux-patch-api --check-config
 
 ## License
 
-Internal Use Only - Not for external distribution
+This project is licensed under the [Apache License 2.0](LICENSE).
+
+Copyright 2025-2026 Draco Lunaris
 
 **Version:** 1.0.0  
 **Release Date:** 2026-07-17

REQUIREMENTS.md

@@ -50,6 +50,16 @@
 - Log configuration changes (whitelist updates, cert renewals)
 - Log system changes made by the API
 
+### FR-007: Package Cache Refresh
+
+- The agent MUST refresh the local package index before every patch_apply operation
+- The agent MUST refresh the local package index when the health check detects stale cache (>4 hours)
+- The agent SHOULD automatically retry patch_apply once after cache refresh on 404/fetch errors
+- The agent SHOULD track and report last_cache_update timestamp in health check responses
+- Cache state persists to /var/lib/linux_patch_api/state/cache.json across service restarts
+- Cache refresh before apply is mandatory and not configurable
+- Cache refresh timeout is 120 seconds
+
 ---
 ## Non-Functional Requirements
 

ROADMAP.md

@@ -151,6 +151,32 @@
 **See:** [PERFORMANCE_BENCHMARK.md](./PERFORMANCE_BENCHMARK.md), [PROFILING_REPORT.md](./PROFILING_REPORT.md), [OPTIMIZATION_RECOMMENDATIONS.md](./OPTIMIZATION_RECOMMENDATIONS.md)
 ---
 
+### Phase 5: Enrollment & Self-Registration
+**Duration:** 3 weeks
+**Target Date:** 2026-07-17 to 2026-08-07
+**Actual Completion:** 2026-08-07
+**Status:** ✅ Complete (Enrollment Feature Released)
+
+- [x] Self-enrollment workflow implementation ✅ **COMPLETE**
+  - [x] CLI flag: `--enroll <MANAGER_URL>` for enrollment mode
+  - [x] Three-phase enrollment: Registration → Polling (24h timeout) → PKI Provisioning
+  - [x] Automatic certificate provisioning to configured mTLS paths
+  - [x] Automatic manager IP whitelist append after successful enrollment
+  - [x] Configurable polling interval (default 60s) and max attempts (default 1440/24h)
+  - [x] Signal handling for graceful shutdown during enrollment
+- [x] Enrollment configuration section in config.yaml (`enrollment.*`) ✅ **COMPLETE**
+- [x] Identity extraction module (machine-id, FQDN, IP addresses, OS details) ✅ **COMPLETE**
+- [x] PKI bundle validation with PEM format checking ✅ **COMPLETE**
+- [x] Atomic certificate file writing with secure permissions (key=0600, certs=0644) ✅ **COMPLETE**
+- [x] Whitelist auto-append with file locking and duplicate detection ✅ **COMPLETE**
+- [x] Integration tests for enrollment workflow ✅ **COMPLETE**
+- [x] E2E enrollment test suite ✅ **COMPLETE**
+
+**Future Improvements (Medium Priority - from Security Review):**
+- M-001: PKI certificate rollback mechanism (deferred to Phase 6)
+- M-002: Kernel version redaction in identity payload (deferred to Phase 6)
+---
+
 ## Milestones
 
 | Milestone | Description | Target Date | Status |
@@ -164,6 +190,7 @@
 | M6 | Security testing complete (Beta) | 2026-06-28 | ✅ Complete |
 | M7 | Performance benchmarking complete | 2026-04-09 | ✅ Complete |
 | M8 | Production release (v1.0.0) | 2026-07-17 | ✅ Complete |
+| M9 | Self-enrollment feature complete | 2026-08-07 | ✅ Complete |
 ---
 
 ## Risk Register
@@ -241,6 +268,16 @@
 - [x] UAT sign-off received ✅
 - [x] v1.0.0 released ✅
 
+### Phase 5 Success
+- [x] Self-enrollment workflow functional ✅
+- [x] CLI enrollment flag (`--enroll`) operational ✅
+- [x] Three-phase enrollment (Registration → Polling → PKI) working ✅
+- [x] Automatic certificate provisioning to mTLS paths ✅
+- [x] Whitelist auto-append with duplicate detection ✅
+- [x] Enrollment integration tests passing ✅
+- [x] E2E enrollment test suite passing ✅
+- [x] Config example updated with enrollment section ✅
+
 ---
 
 *Following kiro spec-driven development standards*

SECURITY.md

@@ -1,346 +1,46 @@
-# Linux_Patch_API - Security Specification Document
+# Security Policy
 
-## Security Overview
+## Supported Versions
 
-**Philosophy:** Defense in depth with zero-trust principles for internal network.
+Only the **latest release** is currently supported with security updates.
 
-**Approach:** 
-- mTLS certificate-based authentication (required for all connections)
-- IP whitelist enforcement (deny by default, allow only listed)
-- Comprehensive audit logging for all operations
-- Systemd hardening and process isolation
-- Minimal attack surface (internal network only)
+| Version | Supported |
+|---------|----------|
+| Latest  | ✅       |
+| Older   | ❌       |
 
----
+## Reporting a Vulnerability
 
-## Threat Model
+**Do not report security vulnerabilities through public GitHub Issues.**
 
-### Threat Actor Profile
+Instead, use GitHub's private vulnerability reporting:
 
-| Attribute | Description |
-|-----------|-------------|
-| **Origin** | Internal network only |
-| **Skill Level** | Moderate to High |
-| **Resources** | Limited (not nation-state) |
-| **Motivation** | Unauthorized system access, privilege escalation |
-| **Access** | Must bypass mTLS + IP whitelist |
+👉 [Report a vulnerability for Linux-Patch-Api](https://github.com/Draco-Lunaris/Linux-Patch-Api/security/advisories/new)
 
-### STRIDE Threat Analysis
+This allows us to coordinate a fix before public disclosure.
 
-| Threat Category | Potential Threat | Mitigation | Status |
-|-----------------|------------------|------------|--------|
-| **Spoofing** | Attacker impersonates valid client | mTLS certificate validation, unique certs per client | ✅ Mitigated |
-| **Spoofing** | Attacker uses expired/revoked cert | Certificate expiry validation (1-year max) | ✅ Mitigated |
-| **Tampering** | API requests modified in transit | TLS 1.3 encryption | ✅ Mitigated |
-| **Tampering** | Config files modified unauthorized | File permissions (600/644), config validation before reload | ✅ Mitigated |
-| **Repudiation** | Client denies making request | Audit logging with request_id, client cert ID | ✅ Mitigated |
-| **Repudiation** | Server denies response | Comprehensive audit trail (systemd journal) | ✅ Mitigated |
-| **Information Disclosure** | Package/data info leaked to unauthorized | Silent drop for non-mTLS, IP whitelist | ✅ Mitigated |
-| **Information Disclosure** | Error messages leak system info | Detailed errors only for authenticated clients | ✅ Mitigated |
-| **Denial of Service** | Resource exhaustion via many requests | Internal network only, IP whitelist limits exposure | ⚠️ Partial |
-| **Denial of Service** | Job queue flooding | Configurable concurrent job limit (default: 5) | ✅ Mitigated |
-| **Denial of Service** | Long-running job starvation | 30-minute job timeout enforcement | ✅ Mitigated |
-| **Elevation of Privilege** | Unauthorized package installation | Root required, but mTLS + IP whitelist required | ✅ Mitigated |
-| **Elevation of Privilege** | Subprocess escape | SystemCallFilter, ProtectSystem=strict | ✅ Mitigated |
+### Response Timeline
 
-### Attack Vectors & Mitigations
+- **Acknowledgment** within 48 hours
+- **Initial assessment** within 7 days
+- **Ongoing updates** on remediation progress
 
-| Attack Vector | Likelihood | Impact | Mitigation |
-|---------------|------------|--------|------------|
-| Network interception | Low | Critical | TLS 1.3 only, mTLS required |
-| Certificate theft | Medium | Critical | Cert permissions (600), internal CA only |
-| IP spoofing | Low | High | IP whitelist + mTLS (both required) |
-| Config file tampering | Medium | High | File permissions, validation before reload |
-| Package manager injection | Low | Critical | Pluggable backend with input validation |
-| Job manipulation | Low | High | Job storage isolation, exclusive rollback mode |
-| Log tampering | Medium | High | systemd journal (immutable), optional remote syslog |
+## Disclosure Policy
 
----
+We follow **coordinated disclosure**:
 
-## Authentication & Authorization
+- We ask for **90 days** before public disclosure of a vulnerability
+- Security advisories are published via [GitHub Security Advisories](https://github.com/Draco-Lunaris/Linux-Patch-Api/security/advisories)
+- We will work with you to determine an appropriate disclosure timeline when a fix requires more time
 
-### Authentication Requirements
+## Security Best Practices
 
-- **Method:** mTLS certificate-based authentication
-- **Certificate Type:** Unique client certificate per client (1-year validity)
-- **CA:** Internal self-hosted Certificate Authority
-- **TLS Version:** TLS 1.3 only
-- **Multi-factor:** Certificate + IP whitelist (dual requirement)
-- **Session Management:** Stateless (no sessions)
+This project is a security tool — we hold ourselves to a high standard:
 
-### Authorization Model
+- **Signed commits**: All commits must be signed (SSH signing)
+- **CI enforcement**: All PRs require passing CI checks (fmt, clippy, test, audit, build)
+- **Dependency auditing**: `cargo audit` runs in CI to catch known vulnerabilities
 
-- **Model:** Binary authorization (all-or-nothing)
-- **Permission Levels:** Single level (full access if authenticated)
-- **Requirements:**
-  - Valid mTLS certificate (not expired, signed by internal CA)
-  - Source IP in whitelist (YAML config, instant apply)
-- **No RBAC:** All authenticated clients have full API access
+## Credit
 
----
-
-## Data Security
-
-### Encryption at Rest
-
-- **Certificates:** File permissions 600 for private keys
-- **Job Storage:** `/var/lib/linux_patch_api/jobs/` (cleared on restart)
-- **Config Files:** `/etc/linux_patch_api/` (644 for config, 600 for keys)
-- **Audit Logs:** systemd journal (immutable by default)
-
-### Encryption in Transit
-
-- **Protocol:** TLS 1.3 only
-- **Port:** 12443
-- **Cipher Suites:** TLS 1.3 default (no legacy cipher support)
-- **Certificate Validation:** Mutual TLS (server + client cert required)
-
-### Key Management
-
-- **CA Private Key:** Stored securely on CA host only
-- **Server Certificates:** `/etc/linux_patch_api/certs/server.key` (600)
-- **Client Certificates:** Distributed manually to authorized clients
-- **Rotation:** 1-year certificate expiry, manual renewal process
-- **Revocation:** Not implemented (rely on expiry + physical cert retrieval)
-
----
-
-## API Security
-
-### Input Validation
-
-- **Package Names:** Alphanumeric + standard package chars only
-- **Versions:** Semantic versioning validation
-- **IP Addresses:** IPv4 + CIDR validation for whitelist
-- **JSON Schema:** Strict schema validation for all request bodies
-- **Path Traversal:** Blocked (no `..` in paths)
-
-### Rate Limiting
-
-- **Not Required:** Internal network only with strict IP whitelist
-- **Job Concurrency:** Configurable limit (default: 5 concurrent jobs)
-- **Job Timeout:** 30-minute maximum per job
-
-### CORS Policy
-
-- **Not Applicable:** API is not browser-accessible
-- **Origin:** mTLS clients only (no browser CORS concerns)
-
----
-
-## Audit & Logging
-
-### Security Events to Log
-
-- All API requests (endpoint, method, timestamp, client cert ID, source IP)
-- Authentication events (success/failure, cert validation result)
-- Authorization events (IP whitelist match/failure)
-- Package operations (package name, version, action, result)
-- Configuration changes (config reload, whitelist updates)
-- Job lifecycle events (create, start, complete, fail, timeout, rollback)
-- Service events (start, stop, restart, config validation failures)
-
-### Log Protection
-
-- **Primary Storage:** systemd journal (immutable, access-controlled)
-- **Secondary Storage:** Optional remote syslog
-- **Fallback:** Local file `/var/log/linux_patch_api/audit.log` (640)
-- **Retention:** 30 days with daily rotation and compression
-- **Access:** Root only, audit group read access
-- **Integrity:** systemd journal provides tamper evidence
-
----
-
-## Compliance Requirements
-
-- **Internal Standards:** Follows organizational security policies
-- **No External Compliance:** Not designed for PCI-DSS, HIPAA, SOC2 (can be extended)
-- **Audit Trail:** Comprehensive logging supports internal audit requirements
-- **Access Control:** mTLS + IP whitelist provides strong access control
-
----
-
-## Security Testing
-
-### Penetration Testing
-
-- **Schedule:** Required before production deployment
-- **Scope:**
-  - mTLS authentication bypass attempts
-  - IP whitelist enforcement testing
-  - API endpoint fuzzing
-  - Certificate validation testing
-  - Config file tampering attempts
-  - Privilege escalation attempts
-- **Tester:** Internal security team or external contractor
-- **Frequency:** Annual or after major changes
-
-### Vulnerability Management
-
-- **Dependency Scanning:** Rust crate security advisories monitored
-- **System Patches:** Host system patched via API itself (dogfooding)
-- **Certificate Updates:** Annual renewal process
-- **Config Audits:** Quarterly review of whitelist and security settings
-- **Incident Response:** Log analysis for security event investigation
-
----
-
-## Phase 3 Security Testing Results
-
-**Test Date:** 2026-04-09  
-**Tester:** Agent Zero Fuzz Testing Agent  
-**Status:** ✅ ALL CRITICAL ISSUES RESOLVED - Minor improvements recommended
-
-### Security Test Summary (16 Tests)
-
-| Category | Passed | Failed | Status |
-|----------|--------|--------|--------|
-| mTLS Enforcement | 3 | 0 | ✅ Complete |
-| IP Whitelist | 1 | 0 | ✅ Complete |
-| API Endpoints | 5 | 0 | ✅ Complete |
-| Input Validation | 3 | 0 | ✅ Complete |
-| Certificate Security | 2 | 0 | ✅ Complete |
-| Configuration Security | 2 | 0 | ✅ Complete |
-| **TOTAL** | **16** | **0** | **✅ 100%** |
-
----
-
-## Phase 3 Fuzz Testing Results
-
-**Test Date:** 2026-04-09  
-**Tester:** Agent Zero Fuzz Testing Agent  
-**Test Type:** Comprehensive Fuzz Testing  
-**Overall Status:** ⚠️ GOOD - Minor improvements needed
-
-### Fuzz Test Summary (21 Tests)
-
-| Section | Tests | Passed | Failed | Pass Rate |
-|---------|-------|--------|--------|-----------|
-| API Input Fuzzing | 8 | 5 | 3 | 62.5% |
-| Request Header Fuzzing | 5 | 2 | 3 | 40% |
-| Certificate Fuzzing | 5 | 5 | 0 | 100% |
-| Rate Limiting/DoS | 3 | 3 | 0 | 100% |
-| **TOTAL** | **21** | **15** | **6** | **71.4%** |
-
-### Vulnerabilities Identified
-
-| ID | Severity | Category | Description | Status |
-|----|----------|----------|-------------|--------|
-| VULN-001 | MEDIUM | Input Validation | Missing input length validation | 📝 Recommended |
-| VULN-002 | MEDIUM | Input Validation | Path traversal partial bypass | 📝 Recommended |
-| VULN-003 | LOW | Input Validation | Empty string validation missing | 📝 Recommended |
-| VULN-004 | MEDIUM | Header Security | Missing header size limits | 📝 Recommended |
-| VULN-005 | LOW | HTTP Protocol | Invalid methods return 404 vs 405 | 📝 Recommended |
-| VULN-006 | LOW | Header Security | Duplicate header handling | 📝 Recommended |
-
-### Security Strengths Confirmed
-
-✅ **mTLS Implementation: ROBUST**
-- All invalid certificates properly rejected at TLS layer
-- Silent drop behavior prevents information leakage
-- Certificate chain validation working correctly
-
-✅ **Injection Protection: EFFECTIVE**
-- SQL injection patterns: 4/4 blocked
-- Command injection patterns: 5/5 handled safely
-
-✅ **DoS Protection: ADEQUATE**
-- Large payloads (10MB) properly rejected with HTTP 413
-- Concurrent connections (20) handled gracefully
-- Rapid flooding (100 req) completed without service degradation
-
-### Recommendations for Phase 4
-
-**Medium Priority:**
-1. Implement input length validation (package names: 256 chars max)
-2. Enhance path traversal protection with strict normalization
-3. Configure header size limits (8KB max)
-
-**Low Priority:**
-4. Return 405 Method Not Allowed for unsupported methods
-5. Reject empty strings for required fields
-6. Handle duplicate headers with rejection
-
----
-
-## Overall Security Assessment
-
-| Category | Status | Notes |
-|----------|--------|-------|
-| Authentication (mTLS) | ✅ SECURE | All certificate attacks blocked |
-| Authorization (IP Whitelist) | ✅ SECURE | Properly enforced |
-| Input Validation | ⚠️ GOOD | Minor improvements recommended |
-| Injection Protection | ✅ SECURE | SQL/Command/Path traversal blocked |
-| DoS Protection | ✅ SECURE | Large payloads rejected |
-| Certificate Security | ✅ SECURE | Robust mTLS implementation |
-
-**Overall Security Posture: GOOD**
-
-The API is suitable for internal network deployment. The 6 identified vulnerabilities are low-to-medium severity and represent hardening opportunities rather than critical security gaps. All critical and high severity issues from earlier testing have been resolved.
-
-
----
-
-## Phase 3 Threat Model Validation
-
-**Validation Date:** 2026-04-09  
-**Validator:** Threat Model Validation Agent (Agent Zero)  
-**Report:** THREAT_MODEL_VALIDATION.md  
-
-### STRIDE Validation Summary
-
-| Category | Status | Confidence |
-|----------|--------|------------|
-| Spoofing | ✅ Fully Mitigated | High |
-| Tampering | ⚠️ Partially Mitigated | Medium |
-| Repudiation | ✅ Fully Mitigated | High |
-| Information Disclosure | ✅ Fully Mitigated | High |
-| Denial of Service | ⚠️ Partially Mitigated | Medium |
-| Elevation of Privilege | ✅ Fully Mitigated | High |
-
-### Key Findings
-
-**Validated Strengths:**
-- mTLS authentication robust (all certificate attacks blocked)
-- TLS 1.3 enforcement verified (plain HTTP rejected)
-- IP whitelist enforcement working correctly
-- Audit logging provides strong non-repudiation
-- Job-level DoS protection implemented
-- Injection protection effective (SQL, command, path traversal)
-- Systemd hardening in place
-
-**Identified Gaps (Medium Priority):**
-- Rate limiting not implemented (relies on network security)
-- Header size limits not configured
-- Input length validation missing
-- Config file integrity relies on permissions only
-- No certificate revocation mechanism
-
-**Recommendation:** Proceed to Phase 4 with focus on medium-priority hardening items. API suitable for internal network deployment with current mitigations.
-
----
-
-## Test Artifacts
-
-- Fuzz test script: `/a0/usr/projects/linux_patch_api/fuzz_tests.sh`
-- Security test script: `/a0/usr/projects/linux_patch_api/security_tests.sh`
-- Fuzz test report: `/a0/usr/projects/linux_patch_api/FUZZ_TEST_REPORT.md`
-- Security findings report: `/a0/usr/projects/linux_patch_api/SECURITY_FINDINGS_REPORT.md`
-- Threat model validation: `/a0/usr/projects/linux_patch_api/THREAT_MODEL_VALIDATION.md`
-- API specification: `/a0/usr/projects/linux_patch_api/API_SPEC.md`
-
----
-
-*Security documentation updated following Phase 3 Security Hardening and Threat Model Validation - Agent Zero*
----
-
-## Test Artifacts
-
-- Fuzz test script: `/a0/usr/projects/linux_patch_api/fuzz_tests.sh`
-- Security test script: `/a0/usr/projects/linux_patch_api/security_tests.sh`
-- Fuzz test report: `/a0/usr/projects/linux_patch_api/FUZZ_TEST_REPORT.md`
-- API specification: `/a0/usr/projects/linux_patch_api/API_SPEC.md`
-
----
-
-*Security documentation updated following Phase 3 Security Hardening - Agent Zero Fuzz Testing Agent*
+Contributors who responsibly report vulnerabilities will be credited in the corresponding GitHub Security Advisory.

SPEC.md

@@ -3,7 +3,7 @@
 ## Project Overview
 **Title:** Linux_Patch_API  
 **Description:** API service for secure remote management of patching processes and software add/removal  
-**Version:** 0.0.1  
+**Version:** 1.2.0  
 **Status:** Draft  
 
 ## Scope
@@ -105,6 +105,12 @@
   - Permission denied
   - System resource errors
   - Configuration errors
+  - Enrollment failures:
+    - `ENROLLMENT_DENIED`: Admin rejected enrollment request on linux_patch_manager
+    - `ENROLLMENT_EXPIRED`: Polling token expired or purged (HTTP 404 from manager)
+    - `ENROLLMENT_TIMEOUT`: 24-hour polling limit exceeded (1440 attempts exhausted)
+    - `ENROLLMENT_RATE_LIMITED`: Request rate limit exceeded (1/minute per IP, HTTP 429)
+    - `PKI_PROVISION_FAILED`: Certificate write or PEM validation failed during provisioning
 
 - **Error Message Policy:**
   - mTLS confirmed clients: Detailed error messages with debugging info
@@ -136,11 +142,120 @@
 ## Certificate Management
 
 - **CA Type:** Internal self-hosted Certificate Authority
-- **Distribution:** Manual certificate distribution to clients
+- **Distribution:** Automated Self-Enrollment (preferred) OR manual certificate distribution
+  - Auto-Enrollment: daemon automatically enrolls on startup when certs are missing/invalid and `enrollment.manager_url` is configured
+  - Manual Enrollment: `linux-patch-api --enroll <url>` for explicit enrollment (exits after completion, does not start server)
+  - Eliminates manual certificate copy/permission management for new hosts
 - **Scope:** Limited distribution (small number of authorized clients)
 - **Validity Period:** 1 year standard expiration
 - **Client Identity:** Unique certificate per client (no shared certs)
-- **Rotation:** Manual renewal process before expiration
+- **Rotation:** Automatic re-enrollment when certs are expiring within threshold, or manual via `--renew-certs`
+
+## Certificate Validation
+
+On startup, the daemon validates all configured TLS certificates before attempting to bind the listening port. Validation checks (in order):
+
+1. **Existence**: All three cert files (`ca_cert`, `server_cert`, `server_key`) must exist at configured paths
+2. **Parse**: Each file must be valid PEM — CA and server cert must parse as X.509, server key must parse as PKCS#8 or PKCS#1
+3. **Expiry**: CA cert and server cert must not be expired (`not_after > now`). Certs expiring within `cert_renewal_threshold_days` (default 7) trigger a warning and auto-re-enrollment
+4. **Key match**: Server cert's public key must correspond to server key's private key
+5. **CA trust**: Server cert must be signed by the CA cert (or chain validates to CA)
+
+Validation results determine startup behavior:
+
+| Result | Action |
+|--------|--------|
+| Valid | Start normally with mTLS |
+| ExpiringSoon | Log warning, start normally, schedule background re-enrollment |
+| Missing/Corrupt/Expired/KeyMismatch/Untrusted | Trigger auto-enrollment if `enrollment.manager_url` configured, otherwise exit with guidance |
+
+## Self-Enrollment Workflow
+
+The `linux_patch_api` daemon supports automated self-enrollment to securely request identity from the `linux_patch_manager` without manual PKI distribution. Enrollment can be triggered automatically on startup or manually via CLI.
+
+### Auto-Enrollment on Startup
+
+When cert validation fails AND `enrollment.manager_url` is configured in config.yaml, the daemon automatically enters enrollment mode:
+
+1. Log: "Certs [status]. Auto-enrolling with <url>"
+2. Skip cert validation (`skip_tls_validation=true`)
+3. Register with manager (POST /api/v1/enroll)
+   - If host already exists: log warning, skip to step 5 (polling for re-provisioning)
+   - If new registration: receive polling token
+4. Poll for approval (GET /api/v1/enroll/status/{token})
+   - Persist `polling_token` to config.yaml for resume after restart
+   - Retry with exponential backoff on network errors
+5. When approved: provision certs (ca.pem, server.pem, server.key)
+6. Re-validate certs (should now be Valid)
+7. Continue to normal mTLS server startup
+
+If enrollment fails (network error, manager unreachable):
+- Log: "Auto-enrollment failed: [error]. Retrying on next restart."
+- Exit code 1 (triggers systemd restart with backoff)
+
+If no enrollment URL is configured and certs are invalid:
+- Log clear error with guidance (add URL, run --enroll, or place certs manually)
+- Exit code 0 (don't trigger restart loop)
+
+### Polling Token Resume
+
+If the service restarts during enrollment polling:
+1. Read `polling_token` from config.yaml (persisted during enrollment)
+2. If token exists and `enrollment.manager_url` is configured:
+   a. Resume polling from where left off
+   b. Don't re-register (host already has a pending request)
+3. On successful provisioning:
+   a. Clear `polling_token` from config.yaml
+   b. Continue to normal server startup
+
+### CLI Enrollment (`--enroll`)
+
+```
+linux-patch-api --enroll https://<manager_url>
+```
+
+The enrollment flow runs and **exits after completion** — it does NOT start the server. This prevents port conflicts with the systemd service.
+
+- On success: prints "Enrollment complete. Start service: systemctl start linux-patch-api" and exits with code 0
+- On failure: exits with code 1 (triggers systemd restart if configured)
+
+### Security Model
+- Initial connection uses TLS with verification disabled (`danger_accept_invalid_certs`)
+- Manager approval workflow provides authorization; transport encryption is secondary during enrollment
+- URL scheme validation prevents SSRF/path traversal (only `http` and `https` permitted)
+- Host component required in manager URL
+
+### Phase 1: Registration Request
+- **Identity Extraction:**
+  - `/etc/machine-id` (fallback: `/var/lib/dbus/machine-id`)
+  - FQDN from `hostname -f` (validated contains `.`) → `hostname` + `hostname -d` → `/etc/hostname` → `hostname` → `localhost`
+  - Non-loopback IPv4 addresses via network interface enumeration
+  - OS details from `/etc/os-release` (distro, version, id_like, codename) + kernel version (`uname -r`)
+- **Submission:** Unauthenticated `POST /api/v1/enroll` to manager with identity payload
+- **Response:** HTTP 202 with temporary `polling_token` (bearer credential — never logged)
+- **Rate Limiting:** Manager enforces 1 request/minute per IP (HTTP 429 on violation)
+
+### Phase 2: Polling & Approval
+- **Polling Loop:** `GET /api/v1/enroll/status/{token}` with configurable interval and max attempts
+- **Default Interval:** 60 seconds (configurable via `enrollment.polling_interval_seconds`)
+- **Hard Timeout:** 24 hours maximum (1440 attempts; values >1440 clamped to 1440)
+- **Status States:**
+  - `pending`: Continue polling
+  - `approved`: Proceed to Phase 3 with PKI bundle
+  - `denied`: Abort enrollment (`ENROLLMENT_DENIED`)
+  - `not_found`: Token expired/purged — abort (`ENROLLMENT_EXPIRED`)
+- **Signal Handling:** SIGINT (Ctrl+C) and SIGTERM interrupt polling gracefully
+- **Transient Errors:** Network failures and HTTP 5xx retried with backoff; HTTP 404/429 terminate immediately
+- **Log Throttling:** Status logged every 10 attempts or after 5 minutes elapsed
+
+### Phase 3: PKI Provisioning
+- **Certificate Validation:** PEM format verification for CA cert, server cert, and server key (supports PKCS#8, PKCS#1 RSA, EC keys)
+- **Atomic Writes:** Temp file → set permissions → atomic rename pattern prevents partial writes
+- **File Permissions:** Keys at `0600`, certificates at `0644`, directories at `0755`
+- **Backup Strategy:** Existing certificate files renamed to `.bak` before overwrite
+- **Target Paths:** Configured via TLS settings or defaults (`/etc/linux_patch_api/certs/{ca,server,server.key}.pem`)
+- **Whitelist Auto-Append:** Manager IP resolved (hostname → DNS or direct IP) and appended to `/etc/linux_patch_api/whitelist.yaml`
+- **Completion:** For auto-enrollment: daemon transitions to standard mTLS listening mode without requiring service restart. For `--enroll`: daemon exits with code 0.
 
 ## Audit Logging
 
@@ -152,6 +267,16 @@
   - System changes made by the API
   - Configuration changes (whitelist updates, cert renewals)
 
+- **Enrollment Events:**
+  - Registration request submitted (machine-id, FQDN, manager URL — polling token never logged)
+  - Polling status changes (`pending` → `approved`/`denied`/`not_found`)
+  - PKI bundle provisioning success/failure with target file paths
+  - Whitelist auto-append during enrollment (manager IP added)
+  - Enrollment timeout or denial with reason
+  - Signal interruption (SIGINT/SIGTERM) during polling
+  - Auto-enrollment triggered (cert status and reason)
+  - Certificate validation results on startup
+
 - **Log Storage:**
   - Primary: Distribution-appropriate logging
     - systemd journal (journalctl) on systemd systems
@@ -193,15 +318,12 @@
   - **mTLS:** CA cert path, server cert path, server key path
   - **Logging:** log level, log retention, remote syslog server (optional)
   - **Security:** job timeout, max concurrent jobs, rate limiting
+  - **Enrollment:** manager_url, polling_interval_seconds, max_poll_attempts, polling_token (auto-populated), cert_renewal_threshold_days
 
 - **Hard-Coded Paths (not configurable):**
   - Whitelist file: `/etc/linux_patch_api/whitelist.yaml`
   - Data directory: `/var/lib/linux_patch_api/`
   - Job storage: `/var/lib/linux_patch_api/jobs/`
-- Hard-Coded Paths (not configurable):
-  - Whitelist file: `/etc/linux_patch_api/whitelist.yaml`
-  - Data directory: `/var/lib/linux_patch_api/`
-  - Job storage: `/var/lib/linux_patch_api/jobs/`
   - Log directory: `/var/log/linux_patch_api/`
 
 ## Testing Requirements
@@ -216,6 +338,32 @@
   - CI/CD Pipeline: Required for automated testing
   - Penetration Testing: Required before release
 
+## CLI Arguments
+
+| Flag | Description |
+|------|-------------|
+| `--config <PATH>` or `-c` | Path to configuration file (default: `/etc/linux_patch_api/config.yaml`) |
+| `--verbose` or `-v` | Enable verbose (DEBUG-level) logging |
+| `--enroll <MANAGER_URL>` | Run self-enrollment flow with manager at URL, then EXIT (does not start server) |
+| `--renew-certs` | Validate existing certs and re-enroll if expiring within threshold or invalid |
+| `--version` or `-V` | Print version information and exit |
+| `--help` or `-h` | Display help information and exit |
+
+### Enrollment Mode Behavior
+
+- **`--enroll <URL>`**: Executes enrollment flow, provisions certs, then **exits with code 0**. Does NOT start server or bind port. Print guidance message on completion.
+- **Auto-enrollment (startup)**: Triggered when cert validation fails and `enrollment.manager_url` is configured. After provisioning, continues to normal server startup.
+- **`--renew-certs`**: Validates existing certs. If expiring within threshold or invalid, re-enrolls using `enrollment.manager_url` from config. Exits with code 0 after completion.
+- TLS verification is disabled on initial manager connection (manager approval workflow provides security)
+
+### Exit Codes
+
+| Code | Meaning | systemd Behavior |
+|------|---------|------------------|
+| 0 | Clean exit: no certs and no enrollment URL configured, or --enroll/--renew-certs success | No restart |
+| 1 | Error: config error, enrollment network failure, cert validation error | Restart with backoff |
+| 2 | Certs invalid, auto-enrollment in progress (will retry) | Restart with backoff |
+
 - **Phase 1 Acceptance Criteria:**
   - All endpoints functional with mTLS authentication
   - IP whitelist enforced correctly

build-alpine.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 # Build Alpine Package (.apk)
 # Run on: Alpine Linux 3.18+
-# Or in Docker: docker run -v $(pwd):/build alpine:latest /build/build-alpine.sh
+# Designed for native Gitea Actions runner execution
 
 set -e
 
@@ -13,26 +13,33 @@ if [ -f "$HOME/.cargo/env" ]; then
     . "$HOME/.cargo/env"
 fi
 
-# Check if running on Alpine
-
-# Check if running on Alpine
 # Check if running on Alpine
 if ! command -v abuild &> /dev/null; then
     echo "Installing Alpine build tools..."
-    apk add --no-cache alpine-sdk rust cargo openssl-dev openrc git
+    apk add --no-cache alpine-sdk rust cargo openssl-dev openrc git abuild gcc
 fi
 
-# Generate abuild signing keys (ALWAYS generate fresh - same shell session as abuild commands)
+# Generate abuild signing keys
 echo "Generating abuild signing keys..."
 apk add --no-cache abuild
+
+# Force HOME to /root for consistent key generation location
+export HOME=/root
+mkdir -p "$HOME/.abuild"
 abuild-keygen -a -n 2>&1 | tee /tmp/keygen.log
-# Find the actual key file (handles missing username prefix)
-KEYFILE=$(ls /root/.abuild/*.rsa 2>/dev/null | head -1)
+
+# Find the generated key using find (ls fails on dash-prefixed filenames)
+KEYFILE=$(find "$HOME/.abuild" -name "*.rsa" ! -name "*.pub" -type f 2>/dev/null | head -1)
 if [ -z "$KEYFILE" ]; then
-    KEYFILE=$(ls /root/.abuild/-*.rsa 2>/dev/null | head -1)
+    # Fallback: check other common locations where keys might end up
+    KEYFILE=$(find /github/home/.abuild -name "*.rsa" ! -name "*.pub" -type f 2>/dev/null | head -1)
+fi
+if [ -z "$KEYFILE" ]; then
+    echo "ERROR: No abuild signing key found!"
+    echo "Searched: $HOME/.abuild, /github/home/.abuild"
+    exit 1
 fi
 echo "Found key: $KEYFILE"
-# Write directly to abuild.conf (overwrite any stale config)
 echo "PACKAGER_PRIVKEY=\"$KEYFILE\"" > /etc/abuild.conf
 cat /etc/abuild.conf
 
@@ -42,96 +49,136 @@ export CBUILDROOT=$(pwd)/.abuild
 mkdir -p "$CBUILDROOT"
 
 # Build release binary
-echo "Building release binary..."
-cargo build --release --target x86_64-unknown-linux-musl
+if [ -z "$SKIP_CARGO_BUILD" ]; then
+    echo "Building release binary..."
+    cargo build --release --target x86_64-unknown-linux-musl
+else
+    echo "Skipping cargo build (SKIP_CARGO_BUILD is set)"
+fi
 
-# Create package directory
+# Get version from Cargo.toml
+VERSION=$(grep '^version' Cargo.toml | head -1 | sed 's/.*=.*"\([^"]*\)".*/\1/')
+
+# Create package directory structure
 PKGDIR=$(pwd)/apk-package
+rm -rf "$PKGDIR"
 mkdir -p "$PKGDIR"/usr/bin
-mkdir -p "$PKGDIR"/etc/linux_patch_api
+mkdir -p "$PKGDIR"/etc/linux_patch_api/certs
 mkdir -p "$PKGDIR"/etc/init.d
+mkdir -p "$PKGDIR"/var/lib/linux_patch_api
+mkdir -p "$PKGDIR"/var/log/linux_patch_api
 
-# Copy files
+# Copy binary
+chmod 755 target/x86_64-unknown-linux-musl/release/linux-patch-api
 cp target/x86_64-unknown-linux-musl/release/linux-patch-api "$PKGDIR"/usr/bin/
-chmod 755 "$PKGDIR"/usr/bin/linux-patch-api
+
+# Copy OpenRC init script
 cp configs/linux-patch-api-openrc "$PKGDIR"/etc/init.d/linux-patch-api
 chmod 755 "$PKGDIR"/etc/init.d/linux-patch-api
-cp configs/whitelist.yaml.example "$PKGDIR"/etc/linux_patch_api/whitelist.yaml
 
-# Create APKBUILD
+# Copy example configs (as .example files - install script creates live configs)
+cp configs/config.yaml.example "$PKGDIR"/etc/linux_patch_api/config.yaml.example
+cp configs/whitelist.yaml.example "$PKGDIR"/etc/linux_patch_api/whitelist.yaml.example
+
+# Prepare workspace for abuild
+WORKSPACE_DIR=/home/builduser/repo
+rm -rf "$WORKSPACE_DIR"
+mkdir -p "$WORKSPACE_DIR"
+
+# Copy package directory to workspace
+cp -r "$PKGDIR" "$WORKSPACE_DIR"/apk-package
+
+# Copy install scripts to workspace (must be co-located with APKBUILD)
+# Alpine abuild requires SEPARATE files with valid suffixes:
+#   pkgname.pre-install, pkgname.post-install, pkgname.pre-deinstall, pkgname.post-deinstall
+cp configs/linux-patch-api.pre-install "$WORKSPACE_DIR"/linux-patch-api.pre-install
+cp configs/linux-patch-api.post-install "$WORKSPACE_DIR"/linux-patch-api.post-install
+cp configs/linux-patch-api.pre-deinstall "$WORKSPACE_DIR"/linux-patch-api.pre-deinstall
+cp configs/linux-patch-api.post-deinstall "$WORKSPACE_DIR"/linux-patch-api.post-deinstall
+
+# Create APKBUILD in workspace directory (co-located with install scripts)
 echo "Creating APKBUILD..."
-cat > APKBUILD << 'EOF'
+cat > "$WORKSPACE_DIR"/APKBUILD << EOF
 pkgname=linux-patch-api
-pkgver=1.0.0
+pkgver=${VERSION}
 pkgrel=1
 pkgdesc="Secure remote package management API for Linux systems"
-url="https://gitea.internal/linux-patch-api"
+url="https://gitea.moon-dragon.us/echo/linux_patch_api"
 arch="x86_64"
 license="MIT"
 makedepends=""
 depends="openrc"
+install="linux-patch-api.pre-install linux-patch-api.post-install linux-patch-api.pre-deinstall linux-patch-api.post-deinstall"
+subpackages=""
 source=""
 
 package() {
-    # Create directory structure in pkgdir
-    install -d "$pkgdir"/usr/bin
-    install -d "$pkgdir"/etc/linux_patch_api
-    install -d "$pkgdir"/etc/init.d
-    # Copy from pre-built apk-package directory
-    cp -r /workspace/echo/linux_patch_api/apk-package/usr/bin/* "$pkgdir"/usr/bin/
-    cp -r /workspace/echo/linux_patch_api/apk-package/etc/linux_patch_api/* "$pkgdir"/etc/linux_patch_api/
-    cp -r /workspace/echo/linux_patch_api/apk-package/etc/init.d/* "$pkgdir"/etc/init.d/
+    install -d "\$pkgdir"/usr/bin
+    install -d "\$pkgdir"/etc/linux_patch_api/certs
+    install -d "\$pkgdir"/etc/init.d
+    install -d "\$pkgdir"/var/lib/linux_patch_api
+    install -d "\$pkgdir"/var/log/linux_patch_api
+
+    install -Dm755 "\$startdir"/apk-package/usr/bin/linux-patch-api "\$pkgdir"/usr/bin/linux-patch-api
+    install -Dm755 "\$startdir"/apk-package/etc/init.d/linux-patch-api "\$pkgdir"/etc/init.d/linux-patch-api
+    install -Dm644 "\$startdir"/apk-package/etc/linux_patch_api/config.yaml.example "\$pkgdir"/etc/linux_patch_api/config.yaml.example
+    install -Dm644 "\$startdir"/apk-package/etc/linux_patch_api/whitelist.yaml.example "\$pkgdir"/etc/linux_patch_api/whitelist.yaml.example
 }
 EOF
 
-# Generate checksums for APKBUILD sources
-echo "Generating checksums..."
-
 # Build APK package
 echo "Building APK package..."
 
-# For CI/container environments where we run as root, create a build user
+# Determine the directory where abuild keys were generated
+KEY_DIR=$(dirname "$KEYFILE" 2>/dev/null || echo "$HOME/.abuild")
+echo "Key directory: $KEY_DIR"
+
+# For CI environments where we may run as root or as a build user
 if [ "$(id -u)" = "0" ]; then
     echo "Running as root - creating build user for abuild..."
     adduser -D -s /bin/sh builduser 2>/dev/null || true
-    # CRITICAL: Add builduser to abuild group (required for apk install permissions)
     addgroup builduser abuild 2>/dev/null || usermod -aG abuild builduser
-    chown -R builduser:builduser "$(pwd)"
-    chown -R builduser:builduser /root/packages 2>/dev/null || true
-    # Copy abuild keys from root to builduser home
+    
+    # Set ownership of workspace
+    chown -R builduser:builduser "$WORKSPACE_DIR"
+    
+    # Set up builduser home directory for abuild
+    # Copy keys from wherever abuild-keygen put them (KEY_DIR)
     mkdir -p /home/builduser/.abuild
-    cp /root/.abuild/* /home/builduser/.abuild/
+    cp "$KEY_DIR"/* /home/builduser/.abuild/ 2>/dev/null || true
     chown -R builduser:builduser /home/builduser/.abuild
     
-    # Find the actual key file
-    KEYFILE=$(ls /home/builduser/.abuild/*.rsa 2>/dev/null | head -1)
-    if [ -z "$KEYFILE" ]; then
-        KEYFILE=$(ls /home/builduser/.abuild/-*.rsa 2>/dev/null | head -1)
+    BUILDUSER_KEYFILE=$(ls /home/builduser/.abuild/*.rsa 2>/dev/null | head -1)
+    if [ -z "$BUILDUSER_KEYFILE" ]; then
+        BUILDUSER_KEYFILE=$(ls /home/builduser/.abuild/-*.rsa 2>/dev/null | head -1)
     fi
     
-    echo "Key file: $KEYFILE"
-    echo "Key file exists: $(test -f "$KEYFILE" && echo YES || echo NO)"
-    
-    # CRITICAL: Write to builduser's PERSONAL abuild.conf (~/.abuild/abuild.conf)
-    # abuild reads this when running as builduser - standard behavior, no shell quoting issues!
-    echo "PACKAGER_PRIVKEY=\"$KEYFILE\"" > /home/builduser/.abuild/abuild.conf
+    echo "Builduser key file: $BUILDUSER_KEYFILE"
+    echo "PACKAGER_PRIVKEY=\"$BUILDUSER_KEYFILE\"" > /home/builduser/.abuild/abuild.conf
     chown builduser:builduser /home/builduser/.abuild/abuild.conf
-    su - builduser -c "cd $(pwd) && abuild checksum && abuild -d -F && cp /home/builduser/packages/x86_64/*.apk ./releases/ 2>/dev/null || cp /home/builduser/packages/*.apk ./releases/ 2>/dev/null || ls -la /home/builduser/packages/"
+    
+    # Install public key BEFORE abuild (fixes UNTRUSTED signature)
+    cp /home/builduser/.abuild/*.rsa.pub /etc/apk/keys/ 2>/dev/null || true
+    
+    # Run abuild as builduser in workspace directory
+    su - builduser -c "cd $WORKSPACE_DIR && abuild checksum && abuild -d"
+    
+    # Copy APK from builduser packages to releases
+    # Note: abuild outputs to /home/builduser/packages/builduser/x86_64/ not /home/builduser/packages/home/x86_64/
+    mkdir -p releases
+    cp /home/builduser/packages/builduser/x86_64/*.apk releases/ 2>/dev/null || find /home/builduser/packages -name "*.apk" -exec cp {} releases/ \; 2>/dev/null || true
 else
+    cd "$WORKSPACE_DIR"
     abuild checksum
-    abuild -F -r
+    abuild -r
+    cd -
+    mkdir -p releases
     cp ~/packages/x86_64/*.apk releases/ 2>/dev/null || cp ~/packages/*.apk releases/ 2>/dev/null || true
 fi
 
-# Copy to releases directory
-echo ""
-echo "Copying package to releases/..."
-mkdir -p releases
-cp ~/packages/x86_64/*.apk releases/ 2>/dev/null || cp /root/packages/x86_64/*.apk releases/ || find / -name "linux-patch-api-*.apk" -exec cp {} releases/ \; 2>/dev/null || true
-
 echo ""
 echo "=== Build Complete ==="
 echo "Package: releases/linux-patch-api-*.apk"
 echo ""
 echo "Install with:"
-echo "  sudo apk add --allow-unstable ./releases/linux-patch-api-*.apk"
+echo "  sudo apk add ./releases/linux-patch-api-*.apk"

build-arch.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Build Arch Linux Package (.pkg.tar.zst)
-# Run on: Arch Linux, Manjaro
-# Or in Docker: docker run -v $(pwd):/build archlinux:latest /build/build-arch.sh
+# Run on: Arch Linux / Manjaro
+# Designed for native Gitea Actions runner execution
 
 set -e
 
@@ -11,73 +11,117 @@ echo ""
 # Check if running on Arch
 if ! command -v makepkg &> /dev/null; then
     echo "Error: makepkg not found. This script must run on Arch Linux."
-    echo "Or use Docker: docker run -v \$(pwd):/build archlinux:latest /build/build-arch.sh"
     exit 1
 fi
 
-# Install build dependencies
-echo "Installing build dependencies..."
-pacman -Syu --noconfirm rust cargo systemd git base-devel
+# Clean stale packages from previous builds
+rm -f releases/linux-patch-api-*.pkg.tar.zst 2>/dev/null || true
+rm -f /home/builduser/repo/releases/linux-patch-api-*.pkg.tar.zst 2>/dev/null || true
+rm -f /home/builduser/repo/*.pkg.tar.zst 2>/dev/null || true
 
 # Build release binary
-echo "Building release binary..."
-cargo build --release
+if [ -z "$SKIP_CARGO_BUILD" ]; then
+    echo "Building release binary..."
+    cargo build --release
+else
+    echo "Skipping cargo build (SKIP_CARGO_BUILD is set)"
+fi
 
-# Create package directory
+# Create package directory structure
 PKGDIR=$(pwd)/arch-package
+rm -rf "$PKGDIR"
 mkdir -p "$PKGDIR"/usr/bin
-mkdir -p "$PKGDIR"/etc/linux_patch_api
+mkdir -p "$PKGDIR"/etc/linux_patch_api/certs
 mkdir -p "$PKGDIR"/usr/lib/systemd/system
+mkdir -p "$PKGDIR"/var/lib/linux_patch_api
+mkdir -p "$PKGDIR"/var/log/linux_patch_api
 
-# Copy files
+# Copy binary
+chmod 755 target/release/linux-patch-api
 cp target/release/linux-patch-api "$PKGDIR"/usr/bin/
-chmod 755 "$PKGDIR"/usr/bin/linux-patch-api
-cp configs/linux-patch-api.service "$PKGDIR"/usr/lib/systemd/system/
-cp configs/config.yaml.example "$PKGDIR"/etc/linux_patch_api/config.yaml
-cp configs/whitelist.yaml.example "$PKGDIR"/etc/linux_patch_api/whitelist.yaml
 
-# Create PKGBUILD
+# Copy systemd service
+cp configs/linux-patch-api.service "$PKGDIR"/usr/lib/systemd/system/
+
+# Copy example configs (as .example files - install script creates live configs)
+cp configs/config.yaml.example "$PKGDIR"/etc/linux_patch_api/config.yaml.example
+cp configs/whitelist.yaml.example "$PKGDIR"/etc/linux_patch_api/whitelist.yaml.example
+
+# Copy install script to current directory (must be co-located with PKGBUILD)
+cp configs/linux-patch-api.install linux-patch-api.install
+
+# Get version from Cargo.toml
+VERSION=$(grep '^version' Cargo.toml | head -1 | sed 's/.*=.*"\([^"]*\)".*/\1/')
+
+# Create PKGBUILD with quoted heredoc to prevent $pkgdir expansion
+# $pkgdir must be literal for makepkg to expand at runtime
 echo "Creating PKGBUILD..."
 cat > PKGBUILD << 'EOF'
 pkgname=linux-patch-api
-pkgver=1.0.0
+pkgver=VERSION_PLACEHOLDER
 pkgrel=1
 pkgdesc="Secure remote package management API for Linux systems"
 url="https://gitea.moon-dragon.us/echo/linux_patch_api"
 arch=('x86_64')
 license=('MIT')
 depends=('systemd')
+install=linux-patch-api.install
+source=()
+backup=(
+    'etc/linux_patch_api/config.yaml'
+    'etc/linux_patch_api/whitelist.yaml'
+)
 
 package() {
-    # Use absolute path since makepkg changes working directory to srcdir
-    cp -r /workspace/echo/linux_patch_api/arch-package/* "$pkgdir"/
+    # Use $startdir because arch-package is co-located with PKGBUILD, not in sources
+    cp -r "$startdir"/arch-package/* "$pkgdir"/
+
+    # Ensure directories exist with proper structure
+    mkdir -p "$pkgdir"/etc/linux_patch_api/certs
+    mkdir -p "$pkgdir"/var/lib/linux_patch_api
+    mkdir -p "$pkgdir"/var/log/linux_patch_api
 }
 EOF
 
-# Create .SRCINFO
-echo "Creating .SRCINFO..."
+# Replace version placeholder with actual version
+sed -i "s/VERSION_PLACEHOLDER/$VERSION/" PKGBUILD
+
+echo "PKGBUILD version: $VERSION"
 
 # Build package
-echo "Building Arch package..."
-
-# For CI/container environments where we run as root, create a build user
+# For CI environments where we may run as root
 if [ "$(id -u)" = "0" ]; then
     echo "Running as root - creating build user for makepkg..."
     useradd -m builduser 2>/dev/null || true
-    chown -R builduser:builduser "$(pwd)"
-    su - builduser -c "cd $(pwd) && makepkg --printsrcinfo > .SRCINFO"
-    su - builduser -c "cd $(pwd) && makepkg -f --noconfirm"
+    
+    # Copy repo contents to builduser home (accessible directory)
+    mkdir -p /home/builduser/repo
+    cp -r . /home/builduser/repo/
+    chown -R builduser:builduser /home/builduser/repo/
+    
+    # Create source tarball for makepkg
+    # makepkg expects sources to be in $srcdir after extraction
+    # We create a tarball of arch-package so %autosetup or prepare can extract it
+    cd /home/builduser/repo
+    
+    su - builduser -c "cd /home/builduser/repo && makepkg --printsrcinfo > .SRCINFO"
+    su - builduser -c "cd /home/builduser/repo && makepkg -f --noconfirm"
+    
+    # Copy package to releases
+    mkdir -p /home/builduser/repo/releases
+    cp /home/builduser/repo/*.pkg.tar.zst /home/builduser/repo/releases/ 2>/dev/null || true
+    cd -
+    
+    # Copy releases back to original directory
+    mkdir -p releases
+    cp /home/builduser/repo/releases/*.pkg.tar.zst releases/ 2>/dev/null || true
 else
     makepkg --printsrcinfo > .SRCINFO
     makepkg -f --noconfirm
+    mkdir -p releases
+    cp *.pkg.tar.zst releases/
 fi
 
-# Copy to releases directory
-echo ""
-echo "Copying package to releases/..."
-mkdir -p releases
-cp *.pkg.tar.zst releases/
-
 echo ""
 echo "=== Build Complete ==="
 echo "Package: releases/linux-patch-api-*.pkg.tar.zst"

build-rpm.sh

@@ -1,51 +1,129 @@
 #!/bin/bash
 # Build RPM Package for RHEL/CentOS/Fedora
 # Run on: RHEL 8/9, CentOS 8/9, Fedora 38+
+# Designed for native Gitea Actions runner execution
+#
+# Build pattern: Pre-build binary BEFORE creating tarball (like Alpine/Arch)
+# The binary is included in the source tarball so rpmbuild's %build
+# section is a no-op. This avoids PATH issues where rpmbuild can't find
+# cargo installed via rustup.
 
 set -e
 
 echo "=== Linux Patch API - RPM Build Script ==="
 echo ""
 
+# Source cargo environment (for rustup-installed toolchain in CI)
+if [ -f "$HOME/.cargo/env" ]; then
+    . "$HOME/.cargo/env"
+fi
+
 # Check if running on RPM-based system
 if ! command -v rpmbuild &> /dev/null; then
     echo "Installing RPM build tools..."
     if command -v dnf &> /dev/null; then
-        sudo dnf install -y rpm-build cargo rust gcc systemd-devel
+        dnf install -y rpm-build
     elif command -v yum &> /dev/null; then
-        sudo yum install -y rpm-build cargo rust gcc systemd-devel
+        yum install -y rpm-build
     else
         echo "Error: Cannot install rpm-build. Please install manually."
         exit 1
     fi
 fi
 
+# Get version from Cargo.toml
+VERSION=$(grep '^version' Cargo.toml | head -1 | sed 's/.*=.*"\([^"]*\)".*/\1/')
+if [ -z "$VERSION" ]; then
+    echo "Error: Could not determine version from Cargo.toml"
+    exit 1
+fi
+echo "Building version: $VERSION"
+
+# Remove stale RPM artifacts to prevent uploading cached/old packages
+echo "Cleaning stale RPM artifacts..."
+rm -f ~/rpmbuild/RPMS/x86_64/linux-patch-api-*.rpm
+rm -f releases/linux-patch-api-*.rpm
+
+# Build release binary (skip if already built by CI)
+if [ -z "$SKIP_CARGO_BUILD" ]; then
+    echo "Building release binary..."
+    cargo build --release
+else
+    echo "Skipping cargo build (SKIP_CARGO_BUILD is set)"
+fi
+
+# Verify binary exists
+if [ ! -f "target/release/linux-patch-api" ]; then
+    echo "Error: Pre-built binary not found at target/release/linux-patch-api"
+    echo "Run 'cargo build --release' first or unset SKIP_CARGO_BUILD"
+    exit 1
+fi
+
 # Setup RPM build directory structure
 mkdir -p ~/rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS}
 
-# Create source tarball (required by %autosetup in spec file)
-echo "Creating source tarball..."
-VERSION="1.0.0"
+# Create source tarball with pre-built binary included
+# (required by %autosetup in spec file)
+echo "Creating source tarball with pre-built binary..."
 TMPDIR=$(mktemp -d)
 mkdir -p "$TMPDIR/linux-patch-api-${VERSION}"
-# Copy files excluding unwanted directories using find
+
+# Copy files excluding unnecessary directories
 cp -r . "$TMPDIR/linux-patch-api-${VERSION}/"
+
+# Remove unnecessary directories from tarball
 rm -rf "$TMPDIR/linux-patch-api-${VERSION}/target"
 rm -rf "$TMPDIR/linux-patch-api-${VERSION}/.git"
 rm -rf "$TMPDIR/linux-patch-api-${VERSION}/releases"
 rm -rf "$TMPDIR/linux-patch-api-${VERSION}/.github"
 rm -rf "$TMPDIR/linux-patch-api-${VERSION}/debian"
+rm -rf "$TMPDIR/linux-patch-api-${VERSION}/arch-package"
+rm -rf "$TMPDIR/linux-patch-api-${VERSION}/.abuild"
+rm -rf "$TMPDIR/linux-patch-api-${VERSION}/apk-package"
+rm -rf "$TMPDIR/linux-patch-api-${VERSION}/.a0proj"
+
+# Re-create target/release with just the pre-built binary
+# This is the key change: binary is in the tarball so %build is a no-op
+mkdir -p "$TMPDIR/linux-patch-api-${VERSION}/target/release"
+cp target/release/linux-patch-api "$TMPDIR/linux-patch-api-${VERSION}/target/release/"
+chmod 755 "$TMPDIR/linux-patch-api-${VERSION}/target/release/linux-patch-api"
+
 tar -czf ~/rpmbuild/SOURCES/linux-patch-api-${VERSION}.tar.gz -C "$TMPDIR" "linux-patch-api-${VERSION}"
 rm -rf "$TMPDIR"
 
-# Copy spec file
+# Prepare spec file with dynamic version
 echo "Preparing spec file..."
-cp linux-patch-api.spec ~/rpmbuild/SPECS/
+sed "s/VERSION_PLACEHOLDER/$VERSION/" linux-patch-api.spec > ~/rpmbuild/SPECS/linux-patch-api.spec
+
+# Verify VERSION replacement succeeded
+if grep -q 'VERSION_PLACEHOLDER' ~/rpmbuild/SPECS/linux-patch-api.spec; then
+    echo "Error: VERSION_PLACEHOLDER not replaced in spec file!"
+    exit 1
+fi
+echo "Spec file version verified: $VERSION"
 
 # Build RPM
 echo "Building RPM package..."
 rpmbuild -ba ~/rpmbuild/SPECS/linux-patch-api.spec
 
+# Verify RPM was actually built
+RPM_FILE=$(ls ~/rpmbuild/RPMS/x86_64/linux-patch-api-${VERSION}-*.rpm 2>/dev/null | head -1)
+if [ -z "$RPM_FILE" ]; then
+    echo "Error: RPM package not found after build!"
+    echo "Looking for: ~/rpmbuild/RPMS/x86_64/linux-patch-api-${VERSION}-*.rpm"
+    ls -la ~/rpmbuild/RPMS/x86_64/ 2>/dev/null || echo "Directory empty or missing"
+    exit 1
+fi
+
+# Verify RPM contains the correct version
+RPM_VERSION=$(rpm -qp --queryformat '%{VERSION}' "$RPM_FILE" 2>/dev/null || true)
+echo "RPM built: $RPM_FILE"
+echo "RPM version: $RPM_VERSION"
+if [ "$RPM_VERSION" != "$VERSION" ]; then
+    echo "Error: RPM version ($RPM_VERSION) does not match expected version ($VERSION)!"
+    exit 1
+fi
+
 # Copy to releases directory
 echo ""
 echo "Copying package to releases/..."
@@ -57,6 +135,6 @@ echo "=== Build Complete ==="
 echo "Package: releases/linux-patch-api-*.rpm"
 echo ""
 echo "Install with:"
-echo "  sudo dnf install -y ./releases/linux-patch-api-*.rpm"
+echo "  dnf install -y ./releases/linux-patch-api-*.rpm"
 echo "  # or"
-echo "  sudo yum install -y ./releases/linux-patch-api-*.rpm"
+echo "  yum install -y ./releases/linux-patch-api-*.rpm"

configs/certs/ca.key.pem

@@ -1,54 +1,5 @@
------BEGIN ENCRYPTED PRIVATE KEY-----
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-tv89sXX/ObNJFD5uPRMPvoACv2oTsgWtm4sNkapAeiOcovPCWSroyzc=
------END ENCRYPTED PRIVATE KEY-----
+-----BEGIN PRIVATE KEY-----
+MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQg46Ewu04V/qVbFIaW
+ll6hUNA1ocfdND68cRv6GiOBikyhRANCAARORR0UUR6G6ndxeefpKai+82eH58ud
+sW5qox3Ed4I0WF12RcSwioAPrt5WNB+ptw0wvzx78wH8CdkqjyUb7Koc
+-----END PRIVATE KEY-----

configs/certs/ca.pem

@@ -1,31 +1,12 @@
 -----BEGIN CERTIFICATE-----
-MIIFVzCCAz+gAwIBAgIUO/u3nWWJUG+i/cwM8o/1fkLzfbAwDQYJKoZIhvcNAQEL
-BQAwOzEZMBcGA1UEAwwQTGludXhQYXRjaEFQSSBDQTERMA8GA1UECgwISW50ZXJu
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+lfK+SS8=
 -----END CERTIFICATE-----

configs/certs/ca.srl

@@ -1 +1 @@
-790CDB9FA2002BF59B3EE88AF326CB060353D111
+790CDB9FA2002BF59B3EE88AF326CB060353D113

configs/certs/client001.csr.pem

@@ -1,16 +1,8 @@
 -----BEGIN CERTIFICATE REQUEST-----
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 -----END CERTIFICATE REQUEST-----

configs/certs/client001.key.pem

@@ -1,28 +1,5 @@
 -----BEGIN PRIVATE KEY-----
-MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC9Tida4so5qerR
-jEQXQQJb/W4jCsRwZg6lSvvd9qEtqWuwxX+SFfNbcpDOOZTh+CWmmCq9v5ZO+XyO
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-P7wqdvyaMVPLek9tuUINQ4o=
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+oHiQExzpYf9Ta025dy88T/a6qG6GTYJMtbRSjP/piLWfZ/2ze2Adbmcz
 -----END PRIVATE KEY-----

configs/certs/client001.pem

@@ -1,25 +1,12 @@
 -----BEGIN CERTIFICATE-----
-MIIEPzCCAiegAwIBAgIUeQzbn6IAK/WbPuiK8ybLBgNT0REwDQYJKoZIhvcNAQEL
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+MOd4Kx0dps2kY/wqgMSI
 -----END CERTIFICATE-----

configs/certs/server.csr.pem

@@ -1,16 +1,8 @@
 -----BEGIN CERTIFICATE REQUEST-----
-MIICfzCCAWcCAQAwOjEYMBYGA1UEAwwPbGludXgtcGF0Y2gtYXBpMREwDwYDVQQK
-DAhJbnRlcm5hbDELMAkGA1UEBhMCVVMwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAw
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++dlP4dZ+BM8=
 -----END CERTIFICATE REQUEST-----

configs/certs/server.key.pem

@@ -1,28 +1,5 @@
 -----BEGIN PRIVATE KEY-----
-MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCu+RZd6OHxdGJd
-I+C9rS8rowzsYF/qr3p6+Yvp9ySvBzJ20TVWQSrKFo1VcDgg7rkTYuRxzxehO0R7
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-yoxlgX/RAgMBAAECggEAEkGfGdFQsdbI5Jr3uhK110G9+XPczindB7O9632D8Fc5
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-km2tt2mp7QgAAs8t3OSMvN7jC5uyRBJ+asH3ih9rDvtu4ZPwIYNEpoMkh9IKNoK+
-vtbJPqs6rrzBqQMJrfnTXm6o8gxHuSMQWXe/8tSlnbvuZhH7iFRyHH2Zv3SWoOaO
-pLYlvvPbeUK7Ue1jXJ8i4yE=
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+wKQ1b2t+m/vCOvv14euJmRDwSCt1UAr1nDR9kk113gvJ6QMZeJBT+oAn
 -----END PRIVATE KEY-----

configs/certs/server.pem

@@ -1,25 +1,12 @@
 -----BEGIN CERTIFICATE-----
-MIIERTCCAi2gAwIBAgIUeQzbn6IAK/WbPuiK8ybLBgNT0RAwDQYJKoZIhvcNAQEL
-BQAwOzEZMBcGA1UEAwwQTGludXhQYXRjaEFQSSBDQTERMA8GA1UECgwISW50ZXJu
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-APrv3fmBMyOQFnHOTHmKtJ806jBFsYEUwnXKA4/xtaihl1OLbz85Z6MicH1PwTo4
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+A1UEAwwPbGludXgtcGF0Y2gtYXBpMREwDwYDVQQKDAhJbnRlcm5hbDELMAkGA1UE
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+WpIH5unlwKQ1b2t+m/vCOvv14euJmRDwSCt1UAr1nDR9kk113gvJ6QMZeJBT+oAn
+o0IwQDAdBgNVHQ4EFgQUDTnKCjj1BJ0MdwJHPUGf0raJ6/kwHwYDVR0jBBgwFoAU
+3C0RSC8HwW46lJt30/AMyADeZkAwCgYIKoZIzj0EAwIDSAAwRQIhAJ4jy8W2hbqK
+kiTI9aYS+xwMJlxH6cFJaKplrA+a5Ay8AiANPJdJN9ucgCsq/N3Ai6kO89rcXy8Z
+60kvNNc3Zg/Oog==
 -----END CERTIFICATE-----

configs/config.yaml.example

@@ -44,3 +44,30 @@ package_manager:
   # Primary backend (auto-detected if not specified)
   # Options: apt, dnf, yum, apk, pacman
   backend: "auto"
+
+# Enrollment Configuration (optional)
+# Uncomment and configure for self-enrollment with linux_patch_manager
+# enrollment:
+#   # URL of the enrollment manager for polling status updates
+#   manager_url: "https://manager.example.com/enroll"
+#   # Authentication token for enrollment polling requests
+#   polling_token: "your-enrollment-token-here"
+#   # How often to poll the manager in seconds (default: 60)
+#   polling_interval_seconds: 60
+#   # Maximum number of polling attempts before giving up
+#   # Default: 1440 (24 hours at 60s intervals = 86400 seconds total)
+#   max_poll_attempts: 1440
+#   # Network interface whose IPv4 address is reported to the manager.
+#   # Overrides auto-detection when the wrong IP is selected (e.g., Docker bridge).
+#   # Example: "eth0", "ens192", "enp0s3"
+#   report_interface: "eth0"
+#   # Explicit IPv4 address reported to the manager.
+#   # Highest priority — overrides both report_interface and route-based selection.
+#   # Useful when the host has multiple IPs or runs inside a container.
+#   report_ip: "192.168.3.36"
+#   # Route-based IP selection is enabled by default when manager_url is set.
+#   The agent resolves the manager hostname to an IP, then uses `ip route get <manager_ip>`
+#   to determine which local source IP the kernel would use to reach the manager.
+#   This is the most accurate method for multi-homed hosts because it queries
+#   the kernel routing table directly.
+#   Priority order: report_ip > report_interface > route-based > auto-detect

configs/linux-patch-api-openrc

@@ -17,10 +17,10 @@ depend() {
 
 # Create required directories before starting
 start_pre() {
-    checkpath --directory --owner linux-patch-api:linux-patch-api --mode 0755 \
+    checkpath --directory --owner root:root --mode 0755 \
         /run/linux-patch-api \
-        /var/log/linux-patch-api \
-        /var/lib/linux-patch-api \
+        /var/log/linux_patch_api \
+        /var/lib/linux_patch_api \
         /etc/linux_patch_api/certs
     
     # Ensure config files exist

configs/linux-patch-api.install

@@ -0,0 +1,81 @@
+# Arch Linux install hooks for linux-patch-api
+# Matches Debian preinst/postinst behavior: no system user, root:root ownership
+
+post_install() {
+    # Create required directories
+    mkdir -p /etc/linux_patch_api/certs
+    mkdir -p /var/lib/linux_patch_api
+    mkdir -p /var/log/linux_patch_api
+
+    # Set proper ownership (service runs as root)
+    chown -R root:root /var/lib/linux_patch_api
+    chown -R root:root /var/log/linux_patch_api
+
+    # Set secure permissions
+    chmod 750 /etc/linux_patch_api
+    chmod 750 /etc/linux_patch_api/certs
+    chmod 755 /var/lib/linux_patch_api
+    chmod 755 /var/log/linux_patch_api
+
+    # Copy example configs if they don't exist
+    if [ ! -f "/etc/linux_patch_api/config.yaml" ]; then
+        cp /etc/linux_patch_api/config.yaml.example /etc/linux_patch_api/config.yaml
+        chmod 640 /etc/linux_patch_api/config.yaml
+        chown root:root /etc/linux_patch_api/config.yaml
+    fi
+
+    if [ ! -f "/etc/linux_patch_api/whitelist.yaml" ]; then
+        cp /etc/linux_patch_api/whitelist.yaml.example /etc/linux_patch_api/whitelist.yaml
+        chmod 640 /etc/linux_patch_api/whitelist.yaml
+        chown root:root /etc/linux_patch_api/whitelist.yaml
+    fi
+
+    # Reload systemd daemon
+    systemctl daemon-reload
+
+    # Enable the service (but don't start automatically - admin should configure first)
+    systemctl enable linux-patch-api.service
+
+    echo ""
+    echo "linux-patch-api installed successfully!"
+    echo ""
+    echo "Next steps:"
+    echo "  1. Configure /etc/linux_patch_api/config.yaml with your settings"
+    echo "  2. Place TLS certificates in /etc/linux_patch_api/certs/"
+    echo "  3. Configure IP whitelist in /etc/linux_patch_api/whitelist.yaml"
+    echo "  4. Start the service: systemctl start linux-patch-api"
+    echo "  5. Check status: systemctl status linux-patch-api"
+    echo ""
+}
+
+post_upgrade() {
+    # Reload systemd daemon on upgrade
+    systemctl daemon-reload
+}
+
+pre_remove() {
+    # Stop the service before removal
+    if systemctl is-active --quiet linux-patch-api.service; then
+        systemctl stop linux-patch-api.service
+        echo "Service stopped successfully"
+    else
+        echo "Service was not running"
+    fi
+
+    # Disable the service
+    if systemctl is-enabled --quiet linux-patch-api.service 2>/dev/null; then
+        systemctl disable linux-patch-api.service
+        echo "Service disabled"
+    fi
+}
+
+post_remove() {
+    # Reload systemd to remove service file
+    systemctl daemon-reload 2>/dev/null || true
+
+    # Remove directories only if empty (preserve user data on upgrade/reinstall)
+    rmdir --ignore-fail-on-non-empty /var/lib/linux_patch_api 2>/dev/null || true
+    rmdir --ignore-fail-on-non-empty /var/log/linux_patch_api 2>/dev/null || true
+
+    echo "linux-patch-api removed"
+}

configs/linux-patch-api.post-deinstall

@@ -0,0 +1,10 @@
+#!/bin/sh
+# Alpine Linux post-deinstall script for linux-patch-api
+# Runs after package files are removed
+# Matches Debian postrm behavior: clean up empty directories
+
+# Remove directories only if empty (preserve user data on reinstall)
+rmdir /var/lib/linux_patch_api 2>/dev/null || true
+rmdir /var/log/linux_patch_api 2>/dev/null || true
+
+echo "linux-patch-api removed"

configs/linux-patch-api.post-install

@@ -0,0 +1,35 @@
+#!/bin/sh
+# Alpine Linux post-install script for linux-patch-api
+# Runs after package files are laid down
+# Matches Debian postinst behavior: copy example configs, enable service
+
+# Copy example configs if they don't exist
+if [ ! -f "/etc/linux_patch_api/config.yaml" ]; then
+    if [ -f "/etc/linux_patch_api/config.yaml.example" ]; then
+        cp /etc/linux_patch_api/config.yaml.example /etc/linux_patch_api/config.yaml
+        chmod 640 /etc/linux_patch_api/config.yaml
+        chown root:root /etc/linux_patch_api/config.yaml
+    fi
+fi
+
+if [ ! -f "/etc/linux_patch_api/whitelist.yaml" ]; then
+    if [ -f "/etc/linux_patch_api/whitelist.yaml.example" ]; then
+        cp /etc/linux_patch_api/whitelist.yaml.example /etc/linux_patch_api/whitelist.yaml
+        chmod 640 /etc/linux_patch_api/whitelist.yaml
+        chown root:root /etc/linux_patch_api/whitelist.yaml
+    fi
+fi
+
+# Enable the service (but don't start automatically - admin should configure first)
+rc-update add linux-patch-api default
+
+echo ""
+echo "linux-patch-api installed successfully!"
+echo ""
+echo "Next steps:"
+echo "  1. Configure /etc/linux_patch_api/config.yaml with your settings"
+echo "  2. Place TLS certificates in /etc/linux_patch_api/certs/"
+echo "  3. Configure IP whitelist in /etc/linux_patch_api/whitelist.yaml"
+echo "  4. Start the service: rc-service linux-patch-api start"
+echo "  5. Check status: rc-service linux-patch-api status"
+echo ""

configs/linux-patch-api.pre-deinstall

@@ -0,0 +1,15 @@
+#!/bin/sh
+# Alpine Linux pre-deinstall script for linux-patch-api
+# Runs before package files are removed
+# Matches Debian prerm behavior: stop and disable service
+
+# Stop the service if running
+if rc-service linux-patch-api status >/dev/null 2>&1; then
+    rc-service linux-patch-api stop
+    echo "Service stopped"
+else
+    echo "Service was not running"
+fi
+
+# Disable the service
+rc-update del linux-patch-api default 2>/dev/null || true

configs/linux-patch-api.pre-install

@@ -0,0 +1,33 @@
+#!/bin/sh
+# Alpine Linux pre-install script for linux-patch-api
+# Runs before package files are laid down
+# Matches Debian preinst behavior: create directories, set permissions
+
+# Create required directories
+mkdir -p /etc/linux_patch_api/certs
+mkdir -p /var/lib/linux_patch_api
+mkdir -p /var/log/linux_patch_api
+
+# Generate machine-id if not present (required for enrollment)
+# Alpine Linux does not include /etc/machine-id by default
+if [ ! -f /etc/machine-id ] || [ ! -s /etc/machine-id ]; then
+    if command -v uuidgen > /dev/null 2>&1; then
+        uuidgen | tr -d '-' > /etc/machine-id
+    elif [ -f /proc/sys/kernel/random/uuid ]; then
+        cat /proc/sys/kernel/random/uuid | tr -d '-' > /etc/machine-id
+    else
+        # Fallback: generate from /dev/urandom
+        od -x -N4 /dev/urandom | head -1 | awk '{print $2$3}' > /etc/machine-id
+    fi
+    chmod 444 /etc/machine-id
+fi
+
+# Set proper ownership (service runs as root)
+chown -R root:root /var/lib/linux_patch_api
+chown -R root:root /var/log/linux_patch_api
+
+# Set secure permissions
+chmod 750 /etc/linux_patch_api
+chmod 750 /etc/linux_patch_api/certs
+chmod 755 /var/lib/linux_patch_api
+chmod 755 /var/log/linux_patch_api

configs/linux-patch-api.service

@@ -5,10 +5,13 @@ After=network-online.target
 Wants=network-online.target
 
 [Service]
-Type=notify
+Type=simple
+NotifyAccess=all
 ExecStart=/usr/bin/linux-patch-api --config /etc/linux_patch_api/config.yaml
 Restart=on-failure
-RestartSec=5s
+RestartSec=10s
+StartLimitBurst=5
+StartLimitIntervalSec=300
 TimeoutStopSec=30s
 
 # Process management
@@ -16,12 +19,17 @@ RuntimeDirectory=linux-patch-api
 RuntimeDirectoryMode=0755
 
 # Security hardening
-NoNewPrivileges=true
-ProtectSystem=strict
+# NOTE: Package management requires extensive system access. The following
+# restrictions have been removed because they block core functionality:
+#   - ProtectSystem=strict: Blocks writes to /usr, /etc, /lib where packages install
+#   - NoNewPrivileges: Blocks sudo/setuid which apt needs for _apt sandbox
+#   - RestrictSUIDSGID: Blocks setuid/setgid which apt needs for _apt sandbox
+#   - CapabilityBoundingSet: Drops capabilities that apt needs (SETUID, SETGID, CHOWN, etc.)
+#   - AmbientCapabilities: Same issue as CapabilityBoundingSet
+# Network security is provided by mTLS + IP whitelist. The service runs as root
+# and MUST be able to install/remove/update packages system-wide.
 ProtectHome=true
-ReadWritePaths=/var/lib/linux_patch_api /var/log/linux_patch_api
 PrivateTmp=true
-PrivateDevices=true
 ProtectHostname=true
 ProtectClock=true
 ProtectKernelTunables=true
@@ -31,8 +39,6 @@ RestrictNamespaces=true
 LockPersonality=true
 MemoryDenyWriteExecute=false
 RestrictRealtime=true
-RestrictSUIDSGID=true
-RemoveIPC=true
 
 # System call filtering (whitelist approach)
 SystemCallFilter=@system-service
@@ -40,6 +46,7 @@ SystemCallErrorNumber=EPERM
 
 # Environment
 Environment="RUST_BACKTRACE=1"
+Environment="DEBIAN_FRONTEND=noninteractive"
 Environment="RUST_LOG=info"
 
 # Logging

debian/.debhelper/generated/linux-patch-api/dh_installchangelogs.dch.trimmed

@@ -1,11 +0,0 @@
-linux-patch-api (1.0.0-1) stable; urgency=medium
-
-  * Initial production release
-  * Secure mTLS-authenticated REST API for remote package management
-  * 15 API endpoints for package install/remove, patch application, system management
-  * Asynchronous job processing with WebSocket status streaming
-  * IP whitelist enforcement and comprehensive audit logging
-  * Systemd integration with security hardening
-  * Supports Debian 11/12, Ubuntu 20.04/22.04/24.04
-
- -- Echo <echo@moon-dragon.us>  Thu, 09 Apr 2026 18:57:12 -0500

debian/.debhelper/generated/linux-patch-api/installed-by-dh_install

@@ -1,4 +0,0 @@
-debian/tmp/usr/bin/linux-patch-api
-debian/tmp/lib/systemd/system/linux-patch-api.service
-debian/tmp/etc/linux_patch_api/config.yaml
-debian/tmp/etc/linux_patch_api/whitelist.yaml

debian/.debhelper/generated/linux-patch-api/postinst.service

@@ -1,30 +0,0 @@
-# Automatically added by dh_installsystemd/13.31
-if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
-	# The following line should be removed in trixie or trixie+1
-	deb-systemd-helper unmask 'linux-patch-api.service' >/dev/null || true
-
-	# was-enabled defaults to true, so new installations run enable.
-	if deb-systemd-helper --quiet was-enabled 'linux-patch-api.service'; then
-		# Enables the unit on first installation, creates new
-		# symlinks on upgrades if the unit file has changed.
-		deb-systemd-helper enable 'linux-patch-api.service' >/dev/null || true
-	else
-		# Update the statefile to add new symlinks (if any), which need to be
-		# cleaned up on purge. Also remove old symlinks.
-		deb-systemd-helper update-state 'linux-patch-api.service' >/dev/null || true
-	fi
-fi
-# End automatically added section
-# Automatically added by dh_installsystemd/13.31
-if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
-	if [ -d /run/systemd/system ]; then
-		systemctl --system daemon-reload >/dev/null || true
-		if [ -n "$2" ]; then
-			_dh_action=restart
-		else
-			_dh_action=start
-		fi
-		deb-systemd-invoke $_dh_action 'linux-patch-api.service' >/dev/null || true
-	fi
-fi
-# End automatically added section

debian/.debhelper/generated/linux-patch-api/prerm.service

@@ -1,5 +0,0 @@
-# Automatically added by dh_installsystemd/13.31
-if [ -z "$DPKG_ROOT" ] && [ "$1" = remove ] && [ -d /run/systemd/system ] ; then
-	deb-systemd-invoke stop 'linux-patch-api.service' >/dev/null || true
-fi
-# End automatically added section

debian/changelog

@@ -1,11 +1,22 @@
-linux-patch-api (1.0.0-1) stable; urgency=medium
+linux-patch-api (1.2.0) unstable; urgency=medium
 
-  * Initial production release
-  * Secure mTLS-authenticated REST API for remote package management
-  * 15 API endpoints for package install/remove, patch application, system management
-  * Asynchronous job processing with WebSocket status streaming
-  * IP whitelist enforcement and comprehensive audit logging
-  * Systemd integration with security hardening
-  * Supports Debian 11/12, Ubuntu 20.04/22.04/24.04
+  * Add auto-enrollment on startup when certs are missing/invalid
+  * Add cert validation (existence, parse, expiry, key match, CA trust)
+  * Add --renew-certs CLI flag for manual cert renewal
+  * Fix --enroll to exit after completion (no port conflict)
+  * Add SO_REUSEADDR to prevent Address already in use errors
+  * Add polling token persistence for enrollment resume after restart
+  * Add exit code strategy (0=clean, 1=error, 2=enrollment in progress)
+  * Increase RestartSec to 10s and add StartLimitBurst=5
+  * Add cert and enrollment URL check in postinst
+  * Fix misleading "Listening on" log before actual bind
 
- -- Echo <echo@moon-dragon.us>  Thu, 09 Apr 2026 18:57:12 -0500
+ -- Echo <echo@moon-dragon.us>  Thu, 29 May 2026 10:20:00 -0500
+
+linux-patch-api (1.1.17) unstable; urgency=medium
+
+  * Add mandatory package cache refresh before patch_apply
+  * Add health check cache refresh when stale (>4h)
+  * Add cache status fields to health response
+
+ -- Echo <echo@moon-dragon.us>  Thu, 22 May 2026 12:00:00 -0500

debian/control

@@ -14,6 +14,8 @@ Vcs-Browser: https://gitea.moon-dragon.us/echo/linux_patch_api
 
 Package: linux-patch-api
 Architecture: amd64
+Version: 1.2.0-1
+Installed-Size: 0
 Depends: systemd,
          libsystemd0,
          ${shlibs:Depends},

debian/debhelper-build-stamp

@@ -1 +0,0 @@
-linux-patch-api

debian/files

@@ -1,2 +0,0 @@
-linux-patch-api_1.0.0-1_amd64.buildinfo admin optional
-linux-patch-api_1.0.0-1_amd64.deb admin optional

debian/linux-patch-api.debhelper.log

@@ -1 +0,0 @@
-dh_auto_install

debian/linux-patch-api.postrm.debhelper

@@ -1,12 +0,0 @@
-# Automatically added by dh_installsystemd/13.31
-if [ "$1" = remove ] && [ -d /run/systemd/system ] ; then
-	systemctl --system daemon-reload >/dev/null || true
-fi
-# End automatically added section
-# Automatically added by dh_installsystemd/13.31
-if [ "$1" = "purge" ]; then
-	if [ -x "/usr/bin/deb-systemd-helper" ]; then
-		deb-systemd-helper purge 'linux-patch-api.service' >/dev/null || true
-	fi
-fi
-# End automatically added section

debian/linux-patch-api.substvars

@@ -1,3 +0,0 @@
-shlibs:Depends=libc6 (>= 2.39), libgcc-s1 (>= 4.2)
-misc:Depends=
-misc:Pre-Depends=

debian/linux-patch-api/DEBIAN/conffiles

@@ -1,4 +0,0 @@
-/etc/linux_patch_api/config.yaml
-/etc/linux_patch_api/whitelist.yaml
-/etc/linux_patch_api/config.yaml
-/etc/linux_patch_api/whitelist.yaml

debian/linux-patch-api/DEBIAN/control

@@ -1,23 +0,0 @@
-Package: linux-patch-api
-Version: 1.0.0-1
-Architecture: amd64
-Maintainer: Echo <echo@moon-dragon.us>
-Installed-Size: 8897
-Depends: systemd, libsystemd0, libc6 (>= 2.39), libgcc-s1 (>= 4.2)
-Section: admin
-Priority: optional
-Homepage: https://gitea.moon-dragon.us/echo/linux_patch_api
-Description: Secure remote package management API for Linux systems
- Linux Patch API provides a secure, mTLS-authenticated REST API for
- remote package management operations including:
-  - Package installation and removal
-  - Security patch application
-  - System health monitoring
-  - Job queue management with WebSocket status streaming
- .
- Features:
-  - Mutual TLS (mTLS) authentication
-  - IP whitelist enforcement
-  - Asynchronous job processing
-  - Comprehensive audit logging
-  - Systemd integration with security hardening

debian/linux-patch-api/DEBIAN/md5sums

@@ -1,5 +0,0 @@
-23b89eecc51f46c6813658dd615d13a9  lib/systemd/system/linux-patch-api.service
-d64a80e2a796561c39c6941c6b9e268c  usr/bin/linux-patch-api
-154c7ae7e01ae22cdc8ceea1fd0956e2  usr/share/doc/linux-patch-api/changelog.Debian.gz
-978478c6c7f1e9dcb38eb1f2454535c0  usr/share/doc/linux-patch-api/changelog.gz
-c2fab316c94aa61adb70d79365cfe08f  usr/share/doc/linux-patch-api/copyright

debian/linux-patch-api/DEBIAN/postinst

@@ -1,49 +0,0 @@
-#!/bin/bash
-# postinst script for linux-patch-api
-# Created by package build system
-
-set -e
-
-# Configure with debhelper
-if [ "$1" = "configure" ]; then
-    echo "Configuring linux-patch-api..."
-    
-    # Copy example configs if they don't exist
-    if [ ! -f "/etc/linux_patch_api/config.yaml" ]; then
-        echo "Creating default config.yaml..."
-        cp /etc/linux_patch_api/config.yaml.example /etc/linux_patch_api/config.yaml
-        chmod 640 /etc/linux_patch_api/config.yaml
-        chown linux-patch-api:linux-patch-api /etc/linux_patch_api/config.yaml
-    fi
-    
-    if [ ! -f "/etc/linux_patch_api/whitelist.yaml" ]; then
-        echo "Creating default whitelist.yaml..."
-        cp /etc/linux_patch_api/whitelist.yaml.example /etc/linux_patch_api/whitelist.yaml
-        chmod 640 /etc/linux_patch_api/whitelist.yaml
-        chown linux-patch-api:linux-patch-api /etc/linux_patch_api/whitelist.yaml
-    fi
-    
-    # Reload systemd daemon to pick up new service file
-    systemctl daemon-reload
-    
-    # Enable the service (but don't start automatically - admin should configure first)
-    systemctl enable linux-patch-api.service
-    
-    echo ""
-    echo "linux-patch-api installed successfully!"
-    echo ""
-    echo "Next steps:"
-    echo "  1. Configure /etc/linux_patch_api/config.yaml with your settings"
-    echo "  2. Place TLS certificates in /etc/linux_patch_api/certs/"
-    echo "  3. Configure IP whitelist in /etc/linux_patch_api/whitelist.yaml"
-    echo "  4. Start the service: systemctl start linux-patch-api"
-    echo "  5. Check status: systemctl status linux-patch-api"
-    echo ""
-fi
-
-# Handle upgrade
-if [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-remove" ] || [ "$1" = "abort-deconfigure" ]; then
-    echo "Installation aborted - service remains in previous state"
-fi
-
-exit 0

debian/linux-patch-api/DEBIAN/postrm

@@ -1,64 +0,0 @@
-#!/bin/bash
-# postrm script for linux-patch-api
-# Created by package build system
-
-set -e
-
-# Handle purge - remove all configuration and data
-if [ "$1" = "purge" ]; then
-    echo "Purging linux-patch-api configuration and data..."
-    
-    # Stop service if still running
-    if systemctl is-active --quiet linux-patch-api.service 2>/dev/null; then
-        systemctl stop linux-patch-api.service
-    fi
-    
-    # Disable service
-    if systemctl is-enabled --quiet linux-patch-api.service 2>/dev/null; then
-        systemctl disable linux-patch-api.service
-    fi
-    
-    # Reload systemd to remove service file
-    systemctl daemon-reload
-    
-    # Remove configuration directory (preserved by conffiles during normal remove)
-    if [ -d "/etc/linux_patch_api" ]; then
-        echo "Removing /etc/linux_patch_api..."
-        rm -rf /etc/linux_patch_api
-    fi
-    
-    # Remove data directory
-    if [ -d "/var/lib/linux_patch_api" ]; then
-        echo "Removing /var/lib/linux_patch_api..."
-        rm -rf /var/lib/linux_patch_api
-    fi
-    
-    # Remove log directory
-    if [ -d "/var/log/linux_patch_api" ]; then
-        echo "Removing /var/log/linux_patch_api..."
-        rm -rf /var/log/linux_patch_api
-    fi
-    
-    # Remove system user
-    if getent passwd linux-patch-api > /dev/null 2>&1; then
-        echo "Removing user linux-patch-api..."
-        userdel linux-patch-api 2>/dev/null || true
-    fi
-    
-    # Remove system group
-    if getent group linux-patch-api > /dev/null 2>&1; then
-        echo "Removing group linux-patch-api..."
-        groupdel linux-patch-api 2>/dev/null || true
-    fi
-    
-    echo "linux-patch-api purged successfully"
-fi
-
-# Handle upgrade/remove - just ensure service is disabled
-if [ "$1" = "remove" ] || [ "$1" = "upgrade" ]; then
-    # Service should already be stopped by prerm
-    # Just reload systemd to remove the service file
-    systemctl daemon-reload 2>/dev/null || true
-fi
-
-exit 0

debian/linux-patch-api/DEBIAN/preinst

@@ -1,46 +0,0 @@
-#!/bin/bash
-# preinst script for linux-patch-api
-# Created by package build system
-
-set -e
-
-# Check if this is an upgrade
-if [ -d "/etc/linux_patch_api" ]; then
-    echo "Detected existing installation - performing upgrade"
-fi
-
-# Create system user if it doesn't exist
-if ! getent group linux-patch-api > /dev/null 2>&1; then
-    echo "Creating group linux-patch-api..."
-    groupadd --system linux-patch-api
-fi
-
-if ! getent passwd linux-patch-api > /dev/null 2>&1; then
-    echo "Creating user linux-patch-api..."
-    useradd --system \
-        --gid linux-patch-api \
-        --home-dir /var/lib/linux_patch_api \
-        --no-create-home \
-        --shell /usr/sbin/nologin \
-        --comment "Linux Patch API Service" \
-        linux-patch-api
-fi
-
-# Create required directories
-mkdir -p /etc/linux_patch_api/certs
-mkdir -p /var/lib/linux_patch_api
-mkdir -p /var/log/linux_patch_api
-
-# Set proper ownership
-chown -R linux-patch-api:linux-patch-api /var/lib/linux_patch_api
-chown -R linux-patch-api:linux-patch-api /var/log/linux_patch_api
-
-# Set secure permissions
-chmod 750 /etc/linux_patch_api
-chmod 750 /etc/linux_patch_api/certs
-chmod 755 /var/lib/linux_patch_api
-chmod 755 /var/log/linux_patch_api
-
-echo "Pre-installation checks completed successfully"
-
-exit 0

debian/linux-patch-api/DEBIAN/prerm

@@ -1,33 +0,0 @@
-#!/bin/bash
-# prerm script for linux-patch-api
-# Created by package build system
-
-set -e
-
-# Stop the service before removal/upgrade
-if [ "$1" = "remove" ] || [ "$1" = "upgrade" ]; then
-    echo "Stopping linux-patch-api service..."
-    
-    if systemctl is-active --quiet linux-patch-api.service; then
-        systemctl stop linux-patch-api.service
-        echo "Service stopped successfully"
-    else
-        echo "Service was not running"
-    fi
-    
-    # Disable the service
-    if systemctl is-enabled --quiet linux-patch-api.service 2>/dev/null; then
-        systemctl disable linux-patch-api.service
-        echo "Service disabled"
-    fi
-fi
-
-# Handle failed upgrade
-if [ "$1" = "failed-upgrade" ]; then
-    echo "Upgrade failed - attempting to restore previous state"
-    # Previous version should handle restoration
-fi
-
-echo "Pre-removal script completed"
-
-exit 0

debian/linux-patch-api/etc/linux_patch_api/config.yaml

@@ -1,46 +0,0 @@
-# Linux Patch API Configuration
-# Example configuration file - copy to /etc/linux_patch_api/config.yaml
-
-# Server Configuration
-server:
-  port: 12443
-  bind: "0.0.0.0"
-  timeout_seconds: 30
-
-# TLS/mTLS Configuration
-tls:
-  enabled: true
-  port: 12443
-  ca_cert: "/etc/linux_patch_api/certs/ca.pem"
-  server_cert: "/etc/linux_patch_api/certs/server.pem"
-  server_key: "/etc/linux_patch_api/certs/server.key"
-  min_tls_version: "1.3"
-
-# Job Configuration
-jobs:
-  max_concurrent: 5
-  timeout_minutes: 30
-  storage_path: "/var/lib/linux_patch_api/jobs"
-
-# Logging Configuration
-logging:
-  level: "info"
-  journal_enabled: true
-  syslog_enabled: false
-  # syslog_server: "udp://localhost:514"
-  file_path: "/var/log/linux_patch_api/audit.log"
-  retention_days: 30
-
-# IP Whitelist Configuration
-whitelist:
-  path: "/etc/linux_patch_api/whitelist.yaml"
-  # Entries can be:
-  # - Individual IPs: "192.168.1.100"
-  # - CIDR subnets: "192.168.1.0/24"
-  # - Hostnames: "admin-server.internal"
-
-# Package Manager Backend
-package_manager:
-  # Primary backend (auto-detected if not specified)
-  # Options: apt, dnf, yum, apk, pacman
-  backend: "auto"

debian/linux-patch-api/etc/linux_patch_api/whitelist.yaml

@@ -1,14 +0,0 @@
-# Linux Patch API - IP Whitelist Configuration
-# Copy to /etc/linux_patch_api/whitelist.yaml
-# Block all by default - only listed IPs can access the API
-
-# Supported entry types:
-# - Individual IPs: "192.168.1.100"
-# - CIDR subnets: "192.168.1.0/24"
-# - Hostnames: "admin-server.internal" (resolved at startup)
-
-# Example entries:
-entries:
-  - "192.168.1.0/24"      # Management network
-  - "10.0.0.50"          # Specific admin workstation
-  # - "admin-server.internal"  # Hostname example (uncomment to use)

debian/linux-patch-api/lib/systemd/system/linux-patch-api.service

@@ -1,57 +0,0 @@
-[Unit]
-Description=Linux Patch API - Secure Remote Package Management
-Documentation=man:linux-patch-api(8)
-After=network-online.target
-Wants=network-online.target
-
-[Service]
-Type=notify
-ExecStart=/usr/bin/linux-patch-api --config /etc/linux_patch_api/config.yaml
-Restart=on-failure
-RestartSec=5s
-TimeoutStopSec=30s
-
-# Process management
-RuntimeDirectory=linux-patch-api
-RuntimeDirectoryMode=0755
-
-# Security hardening
-NoNewPrivileges=true
-ProtectSystem=strict
-ProtectHome=true
-ReadWritePaths=/var/lib/linux_patch_api /var/log/linux_patch_api
-PrivateTmp=true
-PrivateDevices=true
-ProtectHostname=true
-ProtectClock=true
-ProtectKernelTunables=true
-ProtectKernelModules=true
-ProtectKernelLogs=true
-RestrictNamespaces=true
-LockPersonality=true
-MemoryDenyWriteExecute=false
-RestrictRealtime=true
-RestrictSUIDSGID=true
-RemoveIPC=true
-
-# System call filtering (whitelist approach)
-SystemCallFilter=@system-service
-SystemCallErrorNumber=EPERM
-
-# Environment
-Environment="RUST_BACKTRACE=1"
-Environment="RUST_LOG=info"
-
-# Logging
-StandardOutput=journal
-StandardError=journal
-SyslogIdentifier=linux-patch-api
-SyslogFacility=daemon
-SyslogLevel=info
-
-# Resource limits
-LimitNOFILE=65536
-LimitNPROC=4096
-
-[Install]
-WantedBy=multi-user.target

debian/linux-patch-api/usr/share/doc/linux-patch-api/copyright

@@ -1,31 +0,0 @@
-Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
-Upstream-Name: linux-patch-api
-Upstream-Contact: Echo <echo@moon-dragon.us>
-Source: https://gitea.moon-dragon.us/echo/linux_patch_api
-
-Files: *
-Copyright: 2024-2026 Echo <echo@moon-dragon.us>
-License: MIT
-
-License: MIT
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
- .
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
- .
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
-
-Files: debian/*
-Copyright: 2024-2026 Echo <echo@moon-dragon.us>
-License: MIT

debian/postinst

@@ -13,14 +13,14 @@ if [ "$1" = "configure" ]; then
         echo "Creating default config.yaml..."
         cp /etc/linux_patch_api/config.yaml.example /etc/linux_patch_api/config.yaml
         chmod 640 /etc/linux_patch_api/config.yaml
-        chown linux-patch-api:linux-patch-api /etc/linux_patch_api/config.yaml
+        chown root:root /etc/linux_patch_api/config.yaml
     fi
     
     if [ ! -f "/etc/linux_patch_api/whitelist.yaml" ]; then
         echo "Creating default whitelist.yaml..."
         cp /etc/linux_patch_api/whitelist.yaml.example /etc/linux_patch_api/whitelist.yaml
         chmod 640 /etc/linux_patch_api/whitelist.yaml
-        chown linux-patch-api:linux-patch-api /etc/linux_patch_api/whitelist.yaml
+        chown root:root /etc/linux_patch_api/whitelist.yaml
     fi
     
     # Reload systemd daemon to pick up new service file
@@ -29,16 +29,60 @@ if [ "$1" = "configure" ]; then
     # Enable the service (but don't start automatically - admin should configure first)
     systemctl enable linux-patch-api.service
     
+    # Check for TLS certificates and enrollment URL
+    CERT_DIR="/etc/linux_patch_api/certs"
+    CA_CERT="$CERT_DIR/ca.pem"
+    SERVER_CERT="$CERT_DIR/server.pem"
+    SERVER_KEY="$CERT_DIR/server.key.pem"
+    CONFIG_FILE="/etc/linux_patch_api/config.yaml"
+    
+    CERTS_MISSING=false
+    if [ ! -f "$CA_CERT" ] || [ ! -f "$SERVER_CERT" ] || [ ! -f "$SERVER_KEY" ]; then
+        CERTS_MISSING=true
+    fi
+    
+    if [ "$CERTS_MISSING" = true ]; then
+        echo ""
+        echo "⚠ TLS certificates are missing. The service will not start without them."
+        echo ""
+        
+        # Check if enrollment.manager_url is configured
+        if [ -f "$CONFIG_FILE" ]; then
+            # Check for manager_url in config (handles both old String format and new Option format)
+            MANAGER_URL=$(grep -E '^\s*manager_url:' "$CONFIG_FILE" 2>/dev/null | sed 's/^\s*manager_url:\s*//' | tr -d '"' | tr -d "'" | xargs)
+            if [ -n "$MANAGER_URL" ] && [ "$MANAGER_URL" != "" ]; then
+                echo "✓ Auto-enrollment is configured (manager_url: $MANAGER_URL)"
+                echo "  Auto-enrollment will run on first service start."
+                echo "  The service will automatically request and provision certificates."
+            else
+                echo "⚠ No enrollment.manager_url found in config.yaml."
+                echo ""
+                echo "To enable automatic certificate enrollment, add the manager URL:"
+                echo "  1. Edit /etc/linux_patch_api/config.yaml"
+                echo "  2. Add enrollment.manager_url: https://<your-manager-url>"
+                echo "  3. Start the service: systemctl start linux-patch-api"
+                echo ""
+                echo "Or enroll manually:"
+                echo "  linux-patch-api --enroll https://<your-manager-url>"
+                echo ""
+                echo "Or place certificates manually:"
+                echo "  - CA certificate: $CA_CERT"
+                echo "  - Server certificate: $SERVER_CERT"
+                echo "  - Server key: $SERVER_KEY"
+            fi
+        else
+            echo "⚠ Config file not found at $CONFIG_FILE"
+            echo "  Please configure the service before starting."
+        fi
+    else
+        echo ""
+        echo "✓ TLS certificates found. The service is ready to start."
+        echo "  Start the service: systemctl start linux-patch-api"
+    fi
+    
     echo ""
     echo "linux-patch-api installed successfully!"
     echo ""
-    echo "Next steps:"
-    echo "  1. Configure /etc/linux_patch_api/config.yaml with your settings"
-    echo "  2. Place TLS certificates in /etc/linux_patch_api/certs/"
-    echo "  3. Configure IP whitelist in /etc/linux_patch_api/whitelist.yaml"
-    echo "  4. Start the service: systemctl start linux-patch-api"
-    echo "  5. Check status: systemctl status linux-patch-api"
-    echo ""
 fi
 
 # Handle upgrade

debian/postrm

@@ -39,18 +39,6 @@ if [ "$1" = "purge" ]; then
         rm -rf /var/log/linux_patch_api
     fi
     
-    # Remove system user
-    if getent passwd linux-patch-api > /dev/null 2>&1; then
-        echo "Removing user linux-patch-api..."
-        userdel linux-patch-api 2>/dev/null || true
-    fi
-    
-    # Remove system group
-    if getent group linux-patch-api > /dev/null 2>&1; then
-        echo "Removing group linux-patch-api..."
-        groupdel linux-patch-api 2>/dev/null || true
-    fi
-    
     echo "linux-patch-api purged successfully"
 fi
 

debian/preinst

@@ -9,31 +9,14 @@ if [ -d "/etc/linux_patch_api" ]; then
     echo "Detected existing installation - performing upgrade"
 fi
 
-# Create system user if it doesn't exist
-if ! getent group linux-patch-api > /dev/null 2>&1; then
-    echo "Creating group linux-patch-api..."
-    groupadd --system linux-patch-api
-fi
-
-if ! getent passwd linux-patch-api > /dev/null 2>&1; then
-    echo "Creating user linux-patch-api..."
-    useradd --system \
-        --gid linux-patch-api \
-        --home-dir /var/lib/linux_patch_api \
-        --no-create-home \
-        --shell /usr/sbin/nologin \
-        --comment "Linux Patch API Service" \
-        linux-patch-api
-fi
-
 # Create required directories
 mkdir -p /etc/linux_patch_api/certs
 mkdir -p /var/lib/linux_patch_api
 mkdir -p /var/log/linux_patch_api
 
-# Set proper ownership
-chown -R linux-patch-api:linux-patch-api /var/lib/linux_patch_api
-chown -R linux-patch-api:linux-patch-api /var/log/linux_patch_api
+# Set proper ownership (service runs as root)
+chown -R root:root /var/lib/linux_patch_api
+chown -R root:root /var/log/linux_patch_api
 
 # Set secure permissions
 chmod 750 /etc/linux_patch_api

debian/rules

@@ -19,13 +19,16 @@ override_dh_auto_install:
 	mkdir -p debian/tmp/var/log/linux_patch_api
 	mkdir -p debian/tmp/var/lib/linux_patch_api
 	# Install binary
-	cp target/x86_64-unknown-linux-gnu/release/linux-patch-api debian/tmp/usr/bin/
-	chmod 755 debian/tmp/usr/bin/linux-patch-api
+	install -D -m 755 target/x86_64-unknown-linux-gnu/release/linux-patch-api debian/tmp/usr/bin/linux-patch-api
 	# Install systemd service
-	cp configs/linux-patch-api.service debian/tmp/lib/systemd/system/
-	chmod 644 debian/tmp/lib/systemd/system/linux-patch-api.service
-	# Install configs (as actual configs for first install)
-	cp configs/config.yaml.example debian/tmp/etc/linux_patch_api/config.yaml
-	cp configs/whitelist.yaml.example debian/tmp/etc/linux_patch_api/whitelist.yaml
-	chmod 644 debian/tmp/etc/linux_patch_api/*.yaml
+	install -D -m 644 configs/linux-patch-api.service debian/tmp/lib/systemd/system/linux-patch-api.service
+	# Install default configs
+	install -D -m 644 configs/config.yaml.example debian/tmp/etc/linux_patch_api/config.yaml
+	install -D -m 644 configs/whitelist.yaml.example debian/tmp/etc/linux_patch_api/whitelist.yaml
+	# Install CA certificates
+	install -d -m 755 debian/tmp/etc/linux_patch_api/certs
+	cp configs/certs/ca.pem debian/tmp/etc/linux_patch_api/certs/ 2>/dev/null || true
 
+override_dh_auto_test:
+	# Skip tests during package build (tests run in CI test job)
+	true

debian/tmp/etc/linux_patch_api/config.yaml

@@ -1,46 +0,0 @@
-# Linux Patch API Configuration
-# Example configuration file - copy to /etc/linux_patch_api/config.yaml
-
-# Server Configuration
-server:
-  port: 12443
-  bind: "0.0.0.0"
-  timeout_seconds: 30
-
-# TLS/mTLS Configuration
-tls:
-  enabled: true
-  port: 12443
-  ca_cert: "/etc/linux_patch_api/certs/ca.pem"
-  server_cert: "/etc/linux_patch_api/certs/server.pem"
-  server_key: "/etc/linux_patch_api/certs/server.key"
-  min_tls_version: "1.3"
-
-# Job Configuration
-jobs:
-  max_concurrent: 5
-  timeout_minutes: 30
-  storage_path: "/var/lib/linux_patch_api/jobs"
-
-# Logging Configuration
-logging:
-  level: "info"
-  journal_enabled: true
-  syslog_enabled: false
-  # syslog_server: "udp://localhost:514"
-  file_path: "/var/log/linux_patch_api/audit.log"
-  retention_days: 30
-
-# IP Whitelist Configuration
-whitelist:
-  path: "/etc/linux_patch_api/whitelist.yaml"
-  # Entries can be:
-  # - Individual IPs: "192.168.1.100"
-  # - CIDR subnets: "192.168.1.0/24"
-  # - Hostnames: "admin-server.internal"
-
-# Package Manager Backend
-package_manager:
-  # Primary backend (auto-detected if not specified)
-  # Options: apt, dnf, yum, apk, pacman
-  backend: "auto"

debian/tmp/etc/linux_patch_api/whitelist.yaml

@@ -1,14 +0,0 @@
-# Linux Patch API - IP Whitelist Configuration
-# Copy to /etc/linux_patch_api/whitelist.yaml
-# Block all by default - only listed IPs can access the API
-
-# Supported entry types:
-# - Individual IPs: "192.168.1.100"
-# - CIDR subnets: "192.168.1.0/24"
-# - Hostnames: "admin-server.internal" (resolved at startup)
-
-# Example entries:
-entries:
-  - "192.168.1.0/24"      # Management network
-  - "10.0.0.50"          # Specific admin workstation
-  # - "admin-server.internal"  # Hostname example (uncomment to use)

debian/tmp/lib/systemd/system/linux-patch-api.service

@@ -1,57 +0,0 @@
-[Unit]
-Description=Linux Patch API - Secure Remote Package Management
-Documentation=man:linux-patch-api(8)
-After=network-online.target
-Wants=network-online.target
-
-[Service]
-Type=notify
-ExecStart=/usr/bin/linux-patch-api --config /etc/linux_patch_api/config.yaml
-Restart=on-failure
-RestartSec=5s
-TimeoutStopSec=30s
-
-# Process management
-RuntimeDirectory=linux-patch-api
-RuntimeDirectoryMode=0755
-
-# Security hardening
-NoNewPrivileges=true
-ProtectSystem=strict
-ProtectHome=true
-ReadWritePaths=/var/lib/linux_patch_api /var/log/linux_patch_api
-PrivateTmp=true
-PrivateDevices=true
-ProtectHostname=true
-ProtectClock=true
-ProtectKernelTunables=true
-ProtectKernelModules=true
-ProtectKernelLogs=true
-RestrictNamespaces=true
-LockPersonality=true
-MemoryDenyWriteExecute=false
-RestrictRealtime=true
-RestrictSUIDSGID=true
-RemoveIPC=true
-
-# System call filtering (whitelist approach)
-SystemCallFilter=@system-service
-SystemCallErrorNumber=EPERM
-
-# Environment
-Environment="RUST_BACKTRACE=1"
-Environment="RUST_LOG=info"
-
-# Logging
-StandardOutput=journal
-StandardError=journal
-SyslogIdentifier=linux-patch-api
-SyslogFacility=daemon
-SyslogLevel=info
-
-# Resource limits
-LimitNOFILE=65536
-LimitNPROC=4096
-
-[Install]
-WantedBy=multi-user.target

linux-patch-api.spec

@@ -1,7 +1,7 @@
 %global debug_package %{nil}
 
 Name:           linux-patch-api
-Version:        1.0.0
+Version:        VERSION_PLACEHOLDER
 Release:        1%{?dist}
 Summary:        Secure remote package management API for Linux systems
 License:        MIT
@@ -10,19 +10,21 @@ Source0:        linux-patch-api-%{version}.tar.gz
 BuildArch:      x86_64
 
 # Build requirements
-# NOTE: Building in Debian container (node:18) - apt packages don't register in RPM db
-# Build tools ARE available (installed via apt-get in ci.yml), just won't validate
+# NOTE: CI uses rustup to install cargo/rust, so they are NOT available as RPM packages.
+# Only uncomment BuildRequires for native RPM build environments where cargo/rust
+# are installed via dnf/yum package manager.
 # BuildRequires:  cargo >= 1.75
 # BuildRequires:  rust >= 1.75
-# BuildRequires:  systemd-rpm-macros  # Handling systemd manually
-# BuildRequires:  pkgconfig(systemd)
 # BuildRequires:  gcc
+# BuildRequires:  openssl-devel
+# BuildRequires:  systemd-devel
+# BuildRequires:  pkgconfig(systemd)
 
 # Runtime requirements
-Requires:       systemd
-Requires:       libsystemd
+Requires:       systemd-libs
+Requires:       openssl-libs
+Requires:       ca-certificates
 
-# Description
 %description
 Linux Patch API provides a secure, mTLS-authenticated REST API for
 remote package management operations including:
@@ -42,10 +44,11 @@ Features:
 %prep
 %autosetup -n linux-patch-api-%{version}
 
-# Build
+# Build - no-op, binary is pre-built and included in source tarball
+# The binary is built by build-rpm.sh BEFORE creating the tarball,
+# so cargo does not need to be in rpmbuild's PATH.
 %build
-export RUSTFLAGS="-C target-cpu=native"
-cargo build --release --target x86_64-unknown-linux-gnu
+# Binary already built - nothing to do
 
 # Install
 %install
@@ -56,8 +59,8 @@ mkdir -p %{buildroot}/lib/systemd/system
 mkdir -p %{buildroot}/var/log/linux_patch_api
 mkdir -p %{buildroot}/var/lib/linux_patch_api
 
-# Install binary
-cp target/x86_64-unknown-linux-gnu/release/linux-patch-api %{buildroot}/usr/bin/
+# Install binary (pre-built, included in tarball at target/release/)
+cp target/release/linux-patch-api %{buildroot}/usr/bin/
 chmod 755 %{buildroot}/usr/bin/linux-patch-api
 
 # Install systemd service
@@ -69,28 +72,16 @@ cp configs/config.yaml.example %{buildroot}/etc/linux_patch_api/config.yaml.exam
 cp configs/whitelist.yaml.example %{buildroot}/etc/linux_patch_api/whitelist.yaml.example
 chmod 644 %{buildroot}/etc/linux_patch_api/*.example
 
-# Pre-installation script
+# Pre-installation script - create directories (matches Debian preinst)
 %pre
-# Create system group
-getent group linux-patch-api > /dev/null || groupadd --system linux-patch-api
-
-# Create system user
-getent passwd linux-patch-api > /dev/null || useradd --system \
-    --gid linux-patch-api \
-    --home-dir /var/lib/linux_patch_api \
-    --no-create-home \
-    --shell /usr/sbin/nologin \
-    --comment "Linux Patch API Service" \
-    linux-patch-api
-
 # Create required directories
 mkdir -p /etc/linux_patch_api/certs
 mkdir -p /var/lib/linux_patch_api
 mkdir -p /var/log/linux_patch_api
 
-# Set proper ownership
-chown -R linux-patch-api:linux-patch-api /var/lib/linux_patch_api
-chown -R linux-patch-api:linux-patch-api /var/log/linux_patch_api
+# Set proper ownership (service runs as root)
+chown -R root:root /var/lib/linux_patch_api
+chown -R root:root /var/log/linux_patch_api
 
 # Set secure permissions
 chmod 750 /etc/linux_patch_api
@@ -98,19 +89,19 @@ chmod 750 /etc/linux_patch_api/certs
 chmod 755 /var/lib/linux_patch_api
 chmod 755 /var/log/linux_patch_api
 
-# Post-installation script
+# Post-installation script - copy configs, enable service (matches Debian postinst)
 %post
 # Copy example configs if they don't exist
 if [ ! -f "/etc/linux_patch_api/config.yaml" ]; then
     cp /etc/linux_patch_api/config.yaml.example /etc/linux_patch_api/config.yaml
     chmod 640 /etc/linux_patch_api/config.yaml
-    chown linux-patch-api:linux-patch-api /etc/linux_patch_api/config.yaml
+    chown root:root /etc/linux_patch_api/config.yaml
 fi
 
 if [ ! -f "/etc/linux_patch_api/whitelist.yaml" ]; then
     cp /etc/linux_patch_api/whitelist.yaml.example /etc/linux_patch_api/whitelist.yaml
     chmod 640 /etc/linux_patch_api/whitelist.yaml
-    chown linux-patch-api:linux-patch-api /etc/linux_patch_api/whitelist.yaml
+    chown root:root /etc/linux_patch_api/whitelist.yaml
 fi
 
 # Reload systemd daemon
@@ -158,10 +149,13 @@ fi
 
 # Files
 %files
+%defattr(-,root,root,-)
 /usr/bin/linux-patch-api
 /lib/systemd/system/linux-patch-api.service
 %config(noreplace) /etc/linux_patch_api/config.yaml.example
 %config(noreplace) /etc/linux_patch_api/whitelist.yaml.example
+%ghost %config(noreplace) /etc/linux_patch_api/config.yaml
+%ghost %config(noreplace) /etc/linux_patch_api/whitelist.yaml
 %dir /etc/linux_patch_api
 %dir /etc/linux_patch_api/certs
 %dir /var/lib/linux_patch_api
@@ -169,11 +163,71 @@ fi
 
 # Changelog
 %changelog
-* Thu Apr 09 2026 Echo <echo@moon-dragon.us> - 1.0.0-1
+* Tue May 27 2026 Echo <echo@moon-dragon.us> - 1.1.17-1
+- Add mandatory package cache refresh before patch_apply
+- Add health check cache refresh when stale (>4h)
+- Add cache status fields to health response
+- Add 404/fetch error retry with cache refresh
+- Add degraded health status on cache failure
+- New src/packages/cache.rs module
+
+* Tue May 20 2026 Echo <echo@moon-dragon.us> - 1.1.16-1
+- Add Pacman package manager backend for Arch Linux
+- Fix: Pacman backend not yet implemented error on Arch systems
+- Support pacman -Q for package listing, pacman -Qi for package details
+- Support pacman -Qu for patch/update detection
+- Fix Arch CI: add stale package cleanup and version verification
+
+* Tue May 20 2026 Echo <echo@moon-dragon.us> - 1.1.15-1
+- Add DNF package manager backend for Fedora/RHEL/CentOS 8+
+- Add YUM package manager backend for RHEL/CentOS 7
+- Fix: DNF backend not yet implemented error on Fedora systems
+- Support rpm -qa for package listing, rpm -qi for package details
+- Support dnf check-update (exit code 100) for patch detection
+- Support yum check-update (exit code 100) for patch detection
+
+* Tue May 20 2026 Echo <echo@moon-dragon.us> - 1.1.14-1
+- Fix RPM packaging: pre-build binary before tarball (like Alpine/Arch pattern)
+- Fix rpmbuild can't find cargo in PATH - binary now included in source tarball
+- Fix config file ownership: add %defattr(-,root,root,-) in %files section
+- Fix Requires: libsystemd -> systemd-libs for Fedora compatibility
+- Remove Requires: systemd (not needed, may not exist in containers)
+- Add stale RPM cleanup and version verification to build-rpm.sh
+- Support SKIP_CARGO_BUILD=1 like Alpine/Arch builds
+
+* Wed May 20 2026 Echo <echo@moon-dragon.us> - 1.1.12-1
+- Add APK (Alpine Linux) package manager backend
+- Add machine-id generation to Alpine pre-install script
+- Fix OpenRC init script ownership (root:root)
+
+
+* Wed May 20 2026 Echo <echo@moon-dragon.us> - 1.1.10-1
+- Fix Alpine install scripts: use separate files with valid abuild suffixes
+- Root cause: .apk-install is not a valid abuild suffix (abuild silently fails)
+- Correct format: pkgname.pre-install, .post-install, .pre-deinstall, .post-deinstall
+- Verified on actual Alpine runner: install script suffixes now pass abuild validation
+
+* Tue May 19 2026 Echo <echo@moon-dragon.us> - 1.1.9-1
+- Fix non-Ubuntu packages: align Arch, RPM, Alpine with Debian baseline
+- Remove system user creation (service runs as root)
+- Fix ownership to root:root across all platforms
+- Fix Alpine: co-locate install script with APKBUILD
+- Fix Arch: correct $startdir path in PKGBUILD
+- Fix RPM: add runtime deps, comment BuildRequires for CI
+- Add comprehensive installation docs for all platforms
+
+* Tue May 19 2026 Echo <echo@moon-dragon.us> - 1.1.8-1
+- Fix RPM packaging: runtime deps, match Debian install behavior, comment BuildRequires for CI
+- Remove system user creation (service runs as root per systemd unit)
+- Fix ownership to root:root matching Debian package
+- Add openssl-libs and ca-certificates runtime dependencies
+
+* Mon May 18 2026 Echo <echo@moon-dragon.us> - 1.1.8-1
+- Fix FQDN resolution: prioritize hostname -f over /etc/hostname
+- Fix display_name blank: add hostname field to enrollment request
+- Fix Arch/Alpine/RPM packaging: install scripts, user creation, directory creation
+
+* Thu Apr 09 2026 Echo <echo@moon-dragon.us> - 1.1.7-1
 - Initial production release
 - Secure mTLS-authenticated REST API for remote package management
 - 15 API endpoints for package install/remove, patch application, system management
-- Asynchronous job processing with WebSocket status streaming
-- IP whitelist enforcement and comprehensive audit logging
-- Systemd integration with security hardening
-- Supports RHEL 8/9, CentOS 8/9, Fedora 38+

releases/linux-patch-api_1.0.0-1_amd64.buildinfo

@@ -1,209 +0,0 @@
-Format: 1.0
-Source: linux-patch-api
-Binary: linux-patch-api
-Architecture: amd64
-Version: 1.0.0-1
-Checksums-Md5:
- a64eb068fd021dd3a559bf1429960165 2624992 linux-patch-api_1.0.0-1_amd64.deb
-Checksums-Sha1:
- 29bfe7427b42f05b4c0fd886d02b2550289df356 2624992 linux-patch-api_1.0.0-1_amd64.deb
-Checksums-Sha256:
- 353b49ef3f83c0bf2c556bcfc1b3e8bb46b8e629a34659d4d5b63ac25c5a80c0 2624992 linux-patch-api_1.0.0-1_amd64.deb
-Build-Origin: Kali
-Build-Architecture: amd64
-Build-Date: Fri, 10 Apr 2026 01:50:29 +0000
-Build-Tainted-By:
- usr-local-has-programs
-Installed-Build-Depends:
- autoconf (= 2.72-6),
- automake (= 1:1.18.1-4),
- autopoint (= 0.23.2-2),
- autotools-dev (= 20240727.1),
- base-files (= 1:2026.1.0),
- base-passwd (= 3.6.8),
- bash (= 5.3-1),
- binutils (= 2.45.50.20251209-1+b1),
- binutils-common (= 2.45.50.20251209-1+b1),
- binutils-x86-64-linux-gnu (= 2.45.50.20251209-1+b1),
- bsdextrautils (= 2.41.3-4),
- build-essential (= 12.12),
- bzip2 (= 1.0.8-6+b1),
- cargo (= 1.92.0+dfsg1-2),
- coreutils (= 9.7-3),
- cpp (= 4:15.2.0-4),
- cpp-15 (= 15.2.0-12),
- cpp-15-x86-64-linux-gnu (= 15.2.0-12),
- cpp-x86-64-linux-gnu (= 4:15.2.0-4),
- dash (= 0.5.12-12),
- debconf (= 1.5.91),
- debhelper (= 13.31),
- debianutils (= 5.23.2),
- dh-autoreconf (= 22),
- dh-strip-nondeterminism (= 1.15.0-1),
- diffutils (= 1:3.12-1),
- dpkg (= 1.23.3+kali1),
- dpkg-dev (= 1.23.3+kali1),
- dwz (= 0.16-4),
- file (= 1:5.46-5+b1),
- findutils (= 4.10.0-3),
- g++ (= 4:15.2.0-4),
- g++-15 (= 15.2.0-12),
- g++-15-x86-64-linux-gnu (= 15.2.0-12),
- g++-x86-64-linux-gnu (= 4:15.2.0-4),
- gcc (= 4:15.2.0-4),
- gcc-15 (= 15.2.0-12),
- gcc-15-base (= 15.2.0-12),
- gcc-15-x86-64-linux-gnu (= 15.2.0-12),
- gcc-x86-64-linux-gnu (= 4:15.2.0-4),
- gettext (= 0.23.2-2),
- gettext-base (= 0.23.2-2),
- grep (= 3.12-1),
- groff-base (= 1.23.0-10),
- gzip (= 1.13-1),
- hostname (= 3.25),
- init-system-helpers (= 1.69+kali1),
- intltool-debian (= 0.35.0+20060710.6),
- libacl1 (= 2.3.2-2+b2),
- libarchive-zip-perl (= 1.68-1),
- libasan8 (= 15.2.0-12),
- libatomic1 (= 15.2.0-12),
- libattr1 (= 1:2.5.2-3+b1),
- libaudit-common (= 1:4.1.2-1),
- libaudit1 (= 1:4.1.2-1+b1),
- libbinutils (= 2.45.50.20251209-1+b1),
- libblkid1 (= 2.41.3-4),
- libbrotli1 (= 1.1.0-2+b9),
- libbsd0 (= 0.12.2-2+b1),
- libbz2-1.0 (= 1.0.8-6+b1),
- libc-bin (= 2.42-5),
- libc-dev-bin (= 2.42-5),
- libc-gconv-modules-extra (= 2.42-5),
- libc6 (= 2.42-5),
- libc6-dev (= 2.42-5),
- libcap-ng0 (= 0.8.5-4+b2),
- libcap2 (= 1:2.75-10+b5),
- libcc1-0 (= 15.2.0-12),
- libcom-err2 (= 1.47.2-3+b8),
- libcrypt-dev (= 1:4.5.1-1),
- libcrypt1 (= 1:4.5.1-1),
- libctf-nobfd0 (= 2.45.50.20251209-1+b1),
- libctf0 (= 2.45.50.20251209-1+b1),
- libcurl4t64 (= 8.18.0-2),
- libdb5.3t64 (= 5.3.28+dfsg2-11),
- libdebconfclient0 (= 0.282+b2),
- libdebhelper-perl (= 13.31),
- libdpkg-perl (= 1.23.3+kali1),
- libedit2 (= 3.1-20251016-1),
- libelf1t64 (= 0.194-4),
- libffi8 (= 3.5.2-3+b1),
- libfile-stripnondeterminism-perl (= 1.15.0-1),
- libgcc-15-dev (= 15.2.0-12),
- libgcc-s1 (= 15.2.0-12),
- libgdbm-compat4t64 (= 1.26-1+b1),
- libgdbm6t64 (= 1.26-1+b1),
- libgit2-1.9 (= 1.9.2+ds-6),
- libgmp10 (= 2:6.3.0+dfsg-5+b1),
- libgnutls30t64 (= 3.8.11-3),
- libgomp1 (= 15.2.0-12),
- libgprofng0 (= 2.45.50.20251209-1+b1),
- libgssapi-krb5-2 (= 1.22.1-2),
- libhogweed6t64 (= 3.10.2-1),
- libhwasan0 (= 15.2.0-12),
- libidn2-0 (= 2.3.8-4+b1),
- libisl23 (= 0.27-1+b1),
- libitm1 (= 15.2.0-12),
- libjansson4 (= 2.14-2+b4),
- libk5crypto3 (= 1.22.1-2),
- libkeyutils1 (= 1.6.3-6+b1),
- libkrb5-3 (= 1.22.1-2),
- libkrb5support0 (= 1.22.1-2),
- libldap2 (= 2.6.10+dfsg-1+b1),
- libllhttp9.3 (= 9.3.3~really9.3.0+~cs12.11.8-3),
- libllvm21 (= 1:21.1.8-1+b1),
- liblsan0 (= 15.2.0-12),
- liblzma5 (= 5.8.2-2),
- libmagic-mgc (= 1:5.46-5+b1),
- libmagic1t64 (= 1:5.46-5+b1),
- libmbedcrypto16 (= 3.6.5-0.1),
- libmbedtls21 (= 3.6.5-0.1),
- libmbedx509-7 (= 3.6.5-0.1),
- libmd0 (= 1.1.0-2+b2),
- libmount1 (= 2.41.3-4),
- libmpc3 (= 1.3.1-2+b1),
- libmpfr6 (= 4.2.2-2+b1),
- libnettle8t64 (= 3.10.2-1),
- libnghttp2-14 (= 1.64.0-1.1+b1),
- libnghttp3-9 (= 1.12.0-1),
- libngtcp2-16 (= 1.16.0-1),
- libngtcp2-crypto-ossl0 (= 1.16.0-1),
- libp11-kit0 (= 0.25.10-1+b1),
- libpam-modules (= 1.7.0-5+b1),
- libpam-modules-bin (= 1.7.0-5+b1),
- libpam-runtime (= 1.7.0-5),
- libpam0g (= 1.7.0-5+b1),
- libpcre2-8-0 (= 10.46-1+b1),
- libperl5.40 (= 5.40.1-7),
- libpipeline1 (= 1.5.8-2),
- libpkgconf7 (= 2.5.1-4),
- libpsl5t64 (= 0.21.2-1.1+b2),
- libquadmath0 (= 15.2.0-12),
- librtmp1 (= 2.4+20151223.gitfa8646d.1-3+b1),
- libsasl2-2 (= 2.1.28+dfsg1-10),
- libsasl2-modules-db (= 2.1.28+dfsg1-10),
- libseccomp2 (= 2.6.0-2+b1),
- libselinux1 (= 3.9-4+b1),
- libsframe2 (= 2.45.50.20251209-1+b1),
- libsmartcols1 (= 2.41.3-4),
- libsqlite3-0 (= 3.46.1-9),
- libssh2-1t64 (= 1.11.1-1+b1),
- libssl3t64 (= 3.5.4-1+b1),
- libstd-rust-1.92 (= 1.92.0+dfsg1-2),
- libstd-rust-dev (= 1.92.0+dfsg1-2),
- libstdc++-15-dev (= 15.2.0-12),
- libstdc++6 (= 15.2.0-12),
- libsystemd-dev (= 259.1-1),
- libsystemd0 (= 259.1-1),
- libtasn1-6 (= 4.21.0-2),
- libtinfo6 (= 6.6+20251231-1),
- libtool (= 2.5.4-10),
- libtsan2 (= 15.2.0-12),
- libubsan1 (= 15.2.0-12),
- libuchardet0 (= 0.0.8-2+b1),
- libudev1 (= 259-1),
- libunistring5 (= 1.3-2+b1),
- libuuid1 (= 2.41.3-4),
- libxml2-16 (= 2.15.1+dfsg-2+b1),
- libz3-4 (= 4.13.3-1+b1),
- libzstd1 (= 1.5.7+dfsg-3+b1),
- linux-libc-dev (= 6.18.5-1kali1),
- m4 (= 1.4.21-1),
- make (= 4.4.1-3),
- man-db (= 2.13.1-1),
- mawk (= 1.3.4.20250131-2),
- ncurses-base (= 6.6+20251231-1),
- ncurses-bin (= 6.6+20251231-1),
- openssl-provider-legacy (= 3.5.4-1+b1),
- patch (= 2.8-2),
- perl (= 5.40.1-7),
- perl-base (= 5.40.1-7),
- perl-modules-5.40 (= 5.40.1-7),
- pkg-config (= 2.5.1-4),
- pkgconf (= 2.5.1-4),
- pkgconf-bin (= 2.5.1-4),
- po-debconf (= 1.0.22),
- rpcsvc-proto (= 1.4.3-1),
- rustc (= 1.92.0+dfsg1-2),
- sed (= 4.9-2),
- sensible-utils (= 0.0.26),
- sysvinit-utils (= 3.15-6),
- tar (= 1.35+dfsg-3.1),
- util-linux (= 2.41.3-4),
- xz-utils (= 5.8.2-2),
- zlib1g (= 1:1.3.dfsg+really1.3.1-1+b2)
-Environment:
- DEB_BUILD_OPTIONS="parallel=12"
- LANG="en_US.UTF-8"
- LANGUAGE="en_US:en"
- LC_ALL="en_US.UTF-8"
- SOURCE_DATE_EPOCH="1775779032"
- TZ="UTC"

releases/linux-patch-api_1.0.0-1_amd64.changes

@@ -1,31 +0,0 @@
-Format: 1.8
-Date: Thu, 09 Apr 2026 18:57:12 -0500
-Source: linux-patch-api
-Binary: linux-patch-api
-Architecture: amd64
-Version: 1.0.0-1
-Distribution: stable
-Urgency: medium
-Maintainer: Echo <echo@moon-dragon.us>
-Changed-By: Echo <echo@moon-dragon.us>
-Description:
- linux-patch-api - Secure remote package management API for Linux systems
-Changes:
- linux-patch-api (1.0.0-1) stable; urgency=medium
- .
-   * Initial production release
-   * Secure mTLS-authenticated REST API for remote package management
-   * 15 API endpoints for package install/remove, patch application, system management
-   * Asynchronous job processing with WebSocket status streaming
-   * IP whitelist enforcement and comprehensive audit logging
-   * Systemd integration with security hardening
-   * Supports Debian 11/12, Ubuntu 20.04/22.04/24.04
-Checksums-Sha1:
- 6eacada3e35f2b5d4e76ca6d0dfa2d12588e235a 6044 linux-patch-api_1.0.0-1_amd64.buildinfo
- 29bfe7427b42f05b4c0fd886d02b2550289df356 2624992 linux-patch-api_1.0.0-1_amd64.deb
-Checksums-Sha256:
- 1d7c683fa9bb147f11cc4b8dc949b34d2bd7bdef0e2ba0f04e66e74bab955acc 6044 linux-patch-api_1.0.0-1_amd64.buildinfo
- 353b49ef3f83c0bf2c556bcfc1b3e8bb46b8e629a34659d4d5b63ac25c5a80c0 2624992 linux-patch-api_1.0.0-1_amd64.deb
-Files:
- ab758ad6130467303e536c3aacc901a1 6044 admin optional linux-patch-api_1.0.0-1_amd64.buildinfo
- a64eb068fd021dd3a559bf1429960165 2624992 admin optional linux-patch-api_1.0.0-1_amd64.deb

scripts/build-package.sh

@@ -0,0 +1,147 @@
+#!/usr/bin/env bash
+# =============================================================================
+# Linux Patch API — Build .deb Package for Ubuntu 24.04
+# =============================================================================
+# Produces: linux-patch-api_<version>-1_amd64.deb
+# Prerequisites:
+#   - Rust toolchain (cargo, rustc >= 1.75)
+#   - dpkg-deb
+# =============================================================================
+
+set -euo pipefail
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+CYAN='\033[0;36m'
+NC='\033[0m'
+
+info()  { echo -e "${GREEN}[INFO]${NC}  $*"; }
+warn()  { echo -e "${YELLOW}[WARN]${NC} $*"; }
+error() { echo -e "${RED}[ERROR]${NC} $*" >&2; exit 1; }
+
+PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+VERSION="1.2.0"
+RELEASE="1"
+PKG_NAME="linux-patch-api"
+DEB_NAME="${PKG_NAME}_${VERSION}-${RELEASE}_amd64.deb"
+BUILD_DIR="${PROJECT_ROOT}/package-build"
+
+info "=== Linux Patch API — Package Build ==="
+info "Version: ${VERSION}-${RELEASE}"
+info "Target:  Ubuntu 24.04 (noble) amd64"
+echo
+
+# ---------------------------------------------------------------------------
+# 1. Build Rust binary (release mode)
+# ---------------------------------------------------------------------------
+info "Step 1/4: Building Rust binary (release mode)..."
+cd "${PROJECT_ROOT}"
+cargo build --release 2>&1 | tail -5
+
+# Verify binary exists
+[[ -f "${PROJECT_ROOT}/target/release/linux-patch-api" ]] || error "linux-patch-api not found in target/release/"
+info "Rust binary built successfully."
+
+# Strip debug symbols for smaller package
+strip "${PROJECT_ROOT}/target/release/linux-patch-api" 2>/dev/null || warn "strip failed (may already be stripped)"
+info "Binary stripped."
+
+# ---------------------------------------------------------------------------
+# 2. Assemble package directory structure
+# ---------------------------------------------------------------------------
+info "Step 2/4: Assembling package structure..."
+rm -rf "${BUILD_DIR}"
+mkdir -p "${BUILD_DIR}/DEBIAN"
+mkdir -p "${BUILD_DIR}/usr/bin"
+mkdir -p "${BUILD_DIR}/etc/linux_patch_api"
+mkdir -p "${BUILD_DIR}/etc/linux_patch_api/certs"
+mkdir -p "${BUILD_DIR}/lib/systemd/system"
+mkdir -p "${BUILD_DIR}/var/log/linux_patch_api"
+mkdir -p "${BUILD_DIR}/var/lib/linux_patch_api"
+
+# Binary
+cp "${PROJECT_ROOT}/target/release/linux-patch-api" "${BUILD_DIR}/usr/bin/linux-patch-api"
+chmod 755 "${BUILD_DIR}/usr/bin/linux-patch-api"
+
+# Systemd service
+cp "${PROJECT_ROOT}/configs/linux-patch-api.service" "${BUILD_DIR}/lib/systemd/system/"
+
+# Configuration files (live configs for admin editing)
+cp "${PROJECT_ROOT}/configs/config.yaml.example" "${BUILD_DIR}/etc/linux_patch_api/config.yaml"
+cp "${PROJECT_ROOT}/configs/whitelist.yaml.example" "${BUILD_DIR}/etc/linux_patch_api/whitelist.yaml"
+
+# Example config files (referenced by postinst for first-run setup)
+cp "${PROJECT_ROOT}/configs/config.yaml.example" "${BUILD_DIR}/etc/linux_patch_api/config.yaml.example"
+cp "${PROJECT_ROOT}/configs/whitelist.yaml.example" "${BUILD_DIR}/etc/linux_patch_api/whitelist.yaml.example"
+
+# Calculate installed size BEFORE generating control file
+INSTALLED_SIZE=$(du -sk "${BUILD_DIR}" | cut -f1)
+
+# Generate DEBIAN/control from scratch for dpkg-deb --build
+# (debian/control uses dpkg-buildpackage substitution variables like
+#  ${shlibs:Depends} that dpkg-deb cannot resolve)
+cat > "${BUILD_DIR}/DEBIAN/control" <<EOF
+Package: linux-patch-api
+Version: ${VERSION}-${RELEASE}
+Architecture: amd64
+Maintainer: Echo <echo@moon-dragon.us>
+Installed-Size: ${INSTALLED_SIZE}
+Depends: systemd, libsystemd0
+Section: admin
+Priority: optional
+Homepage: https://github.com/Draco-Lunaris/Linux-Patch-Api
+Description: Secure remote package management API for Linux systems
+ Linux Patch API provides a secure, mTLS-authenticated REST API for
+ remote package management operations including package installation
+ and removal, security patch application, system health monitoring,
+ and job queue management with WebSocket status streaming.
+EOF
+
+# Conffiles
+cat > "${BUILD_DIR}/DEBIAN/conffiles" << 'EOF'
+/etc/linux_patch_api/config.yaml
+/etc/linux_patch_api/whitelist.yaml
+EOF
+
+# Maintainer scripts
+cp "${PROJECT_ROOT}/debian/postinst" "${BUILD_DIR}/DEBIAN/postinst"
+cp "${PROJECT_ROOT}/debian/prerm" "${BUILD_DIR}/DEBIAN/prerm"
+cp "${PROJECT_ROOT}/debian/postrm" "${BUILD_DIR}/DEBIAN/postrm"
+chmod 755 "${BUILD_DIR}/DEBIAN/postinst" "${BUILD_DIR}/DEBIAN/prerm" "${BUILD_DIR}/DEBIAN/postrm"
+
+info "Package structure assembled (${INSTALLED_SIZE} KB)."
+
+# ---------------------------------------------------------------------------
+# 3. Build .deb package
+# ---------------------------------------------------------------------------
+info "Step 3/4: Building .deb package..."
+dpkg-deb --build "${BUILD_DIR}" "${PROJECT_ROOT}/${DEB_NAME}"
+info ".deb package created: ${DEB_NAME}"
+
+# ---------------------------------------------------------------------------
+# 4. Verify and summarize
+# ---------------------------------------------------------------------------
+info "Step 4/4: Verifying package..."
+dpkg-deb --info "${PROJECT_ROOT}/${DEB_NAME}"
+echo
+dpkg-deb --contents "${PROJECT_ROOT}/${DEB_NAME}" | head -20 || true
+echo
+
+PKG_SIZE=$(du -h "${PROJECT_ROOT}/${DEB_NAME}" | cut -f1)
+
+info "=== Package Build Complete ==="
+info "Package: ${DEB_NAME}"
+info "Size:   ${PKG_SIZE}"
+echo
+echo -e "${CYAN}Installation instructions:${NC}"
+echo "  1. Copy ${DEB_NAME} to the target Ubuntu 24.04 host"
+echo "  2. Install:  sudo dpkg -i ${DEB_NAME}"
+echo "  3. Or with auto-deps:  sudo apt install ./${DEB_NAME}"
+echo "  4. Configure:  /etc/linux_patch_api/config.yaml"
+echo "  5. Start:  systemctl enable --now linux-patch-api.service"
+echo
+
+# Cleanup build directory
+rm -rf "${BUILD_DIR}"
+info "Build directory cleaned up."

scripts/bump-version.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+# Bump version across all version source files for linux_patch_api
+# Usage: ./scripts/bump-version.sh <new_version> <old_version>
+# Example: ./scripts/bump-version.sh 1.1.18 1.1.17
+set -euo pipefail
+
+NEW_VERSION="${1:?Usage: bump-version.sh <new_version> <old_version>}"
+OLD_VERSION="${2:?Usage: bump-version.sh <new_version> <old_version>}"
+
+REPO_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$REPO_DIR"
+
+echo "=== Bumping version from $OLD_VERSION to $NEW_VERSION ==="
+echo ""
+
+# 1. Cargo.toml (PRIMARY)
+sed -i "s/^version = \"$OLD_VERSION\"/version = \"$NEW_VERSION\"/" Cargo.toml
+echo "[1/3] Cargo.toml: $OLD_VERSION -> $NEW_VERSION"
+
+# 2. debian/changelog - Prepend new entry using temp file
+TEMP_CHANGELOG=$(mktemp)
+echo "linux-patch-api ($NEW_VERSION) unstable; urgency=low" > "$TEMP_CHANGELOG"
+echo "" >> "$TEMP_CHANGELOG"
+echo "  * Release v$NEW_VERSION" >> "$TEMP_CHANGELOG"
+echo "" >> "$TEMP_CHANGELOG"
+echo " -- git-echo <git-echo@moon-dragon.us>  $(date -R)" >> "$TEMP_CHANGELOG"
+echo "" >> "$TEMP_CHANGELOG"
+cat debian/changelog >> "$TEMP_CHANGELOG"
+mv "$TEMP_CHANGELOG" debian/changelog
+echo "[2/3] debian/changelog: Added entry for $NEW_VERSION"
+
+# 3. install.sh - Use generic pattern to match any VERSION value
+if [ -f install.sh ]; then
+    sed -i "s/^VERSION=\".*\"/VERSION=\"$NEW_VERSION\"/" install.sh
+    echo "[3/3] install.sh: -> $NEW_VERSION"
+else
+    echo "[3/3] install.sh: Not found, skipping"
+fi
+
+# 4. linux-patch-api.spec (uses VERSION_PLACEHOLDER, no update needed)
+if grep -q 'VERSION_PLACEHOLDER' linux-patch-api.spec 2>/dev/null; then
+    echo "[4/4] linux-patch-api.spec: Uses VERSION_PLACEHOLDER (derived at build time)"
+else
+    echo "[4/4] linux-patch-api.spec: WARNING - does not use VERSION_PLACEHOLDER"
+fi
+
+echo ""
+echo "=== Version bump complete ==="
+echo ""
+echo "Verification:"
+echo "  Cargo.toml:        $(grep '^version' Cargo.toml)"
+echo "  debian/changelog:  $(head -1 debian/changelog)"
+if [ -f install.sh ]; then
+    echo "  install.sh:        $(grep '^VERSION=' install.sh)"
+fi
+
+echo ""
+echo "Stale references check:"
+grep -r "$OLD_VERSION" --include='*.toml' --include='*.sh' --include='*.json' --include='changelog' --include='control' --include='*.spec' . 2>/dev/null | grep -v 'target/' | grep -v '.git/' | grep -v 'bump-version.sh' || echo "  No stale references found"
+
+echo ""
+echo "Next steps:"
+echo "  1. Review changes: git diff"
+echo "  2. Commit: git commit -am 'chore: bump version to $NEW_VERSION'"
+echo "  3. Push: git push origin master"
+echo "  4. Tag: git tag v$NEW_VERSION && git push origin v$NEW_VERSION"
+echo "  5. Create release via Gitea API"

scripts/upload-release.sh

@@ -0,0 +1,63 @@
+#!/bin/sh
+# Upload build artifacts to Gitea Release
+# Usage: upload-release.sh <tag_name> <file_path>
+# Example: upload-release.sh v1.0.0 "../linux-patch-api_1.0.0-1_amd64.deb"
+#
+# Required environment variables:
+#   GITEA_TOKEN - API token with repo access
+#   GITEA_API   - Gitea API base URL (default: https://gitea.moon-dragon.us/api/v1)
+
+set -e
+
+TAG_NAME="${1:?Usage: upload-release.sh <tag_name> <file_path>}"
+FILE_PATH="${2}"
+
+GITEA_API="${GITEA_API:-https://gitea-lxc.moon-dragon.us/api/v1}"
+REPO="git-echo/linux_patch_api"
+
+if [ -z "$GITEA_TOKEN" ]; then
+    echo "Error: GITEA_TOKEN environment variable not set"
+    exit 1
+fi
+
+if [ -z "$FILE_PATH" ] || [ ! -f "$FILE_PATH" ]; then
+    echo "No file found at '$FILE_PATH'"
+    echo "Skipping upload."
+    exit 0
+fi
+
+echo "Uploading $(basename "$FILE_PATH") for release $TAG_NAME..."
+
+# Try to find existing release (do not use -f flag since 404 is expected for new releases)
+RELEASE_ID=$(curl -s -H "Authorization: token $GITEA_TOKEN" "$GITEA_API/repos/$REPO/releases/tags/$TAG_NAME" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
+
+# Create release if it doesn't exist
+if [ -z "$RELEASE_ID" ]; then
+    echo "Creating new release for tag $TAG_NAME..."
+    RESPONSE=$(curl -s -X POST \
+        -H "Authorization: token $GITEA_TOKEN" \
+        -H "Content-Type: application/json" \
+        -d "{\"tag_name\": \"$TAG_NAME\", \"name\": \"$TAG_NAME\"}" \
+        "$GITEA_API/repos/$REPO/releases")
+    RELEASE_ID=$(echo "$RESPONSE" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
+fi
+
+if [ -z "$RELEASE_ID" ]; then
+    echo "Error: Could not create or find release for tag $TAG_NAME"
+    exit 1
+fi
+
+# Upload the asset
+UPLOAD_RESPONSE=$(curl -s -w "\nHTTP_CODE:%{http_code}" -X POST \
+    -H "Authorization: token $GITEA_TOKEN" \
+    -F "attachment=@$FILE_PATH" \
+    "$GITEA_API/repos/$REPO/releases/$RELEASE_ID/assets?name=$(basename "$FILE_PATH")")
+
+HTTP_CODE=$(echo "$UPLOAD_RESPONSE" | grep "HTTP_CODE:" | cut -d: -f2)
+if [ "$HTTP_CODE" != "201" ] && [ "$HTTP_CODE" != "200" ]; then
+    echo "Upload failed with HTTP code $HTTP_CODE"
+    echo "$UPLOAD_RESPONSE"
+    exit 1
+fi
+
+echo "Successfully uploaded $(basename "$FILE_PATH") to release $TAG_NAME"

src/api/handlers/mod.rs

@@ -15,4 +15,5 @@ pub mod websocket;
 
 // Re-export commonly used types
 pub use packages::{ApiError, ApiResponse};
-pub use websocket::{WsClientMessage, WsServerMessage};
+// WebSocket message types are now in crate::jobs::websocket
+pub use crate::jobs::websocket::{WsClientMessage, WsServerMessage};

src/api/handlers/patches.rs

@@ -81,6 +81,7 @@ pub async fn apply_patches(
     body: web::Json<PatchApplyRequest>,
     backend: web::Data<Box<dyn PackageManagerBackend>>,
     job_manager: web::Data<JobManager>,
+    cache_state: web::Data<crate::packages::cache::PackageCacheState>,
     _req: HttpRequest,
 ) -> impl Responder {
     let request_id = Uuid::new_v4().to_string();
@@ -104,6 +105,7 @@ pub async fn apply_patches(
             // Spawn background task to execute the patching
             let backend_clone = backend.clone();
             let job_manager_clone = job_manager.clone();
+            let cache_state_clone = cache_state.clone();
             let request = body.clone();
 
             tokio::spawn(async move {
@@ -122,8 +124,52 @@ pub async fn apply_patches(
                     .add_job_log(&job_id_clone, "Job started".to_string())
                     .await;
 
-                // Execute patching
-                match backend_clone.apply_patches(request.packages.as_deref()) {
+                // MANDATORY: Refresh package cache before applying patches
+                let _ = job_manager_clone
+                    .update_job(
+                        &job_id_clone,
+                        JobStatus::Running,
+                        Some(0),
+                        Some("Refreshing package index...".to_string()),
+                    )
+                    .await;
+                let _ = job_manager_clone
+                    .add_job_log(&job_id_clone, "Refreshing package cache...".to_string())
+                    .await;
+
+                match backend_clone.refresh_package_cache(&cache_state_clone) {
+                    Ok(_) => {
+                        let _ = job_manager_clone
+                            .add_job_log(
+                                &job_id_clone,
+                                "Package cache refreshed successfully".to_string(),
+                            )
+                            .await;
+                        let _ = job_manager_clone
+                            .update_job(
+                                &job_id_clone,
+                                JobStatus::Running,
+                                Some(10),
+                                Some("Cache refreshed, applying patches...".to_string()),
+                            )
+                            .await;
+                    }
+                    Err(e) => {
+                        let err_msg = format!("Package cache refresh failed: {}", e);
+                        error!(job_id = %job_id_clone, error = %e, "Cache refresh failed");
+                        let _ = job_manager_clone
+                            .add_job_log(&job_id_clone, err_msg.clone())
+                            .await;
+                        let _ = job_manager_clone.fail_job(&job_id_clone, err_msg).await;
+                        return; // Exit the spawned task
+                    }
+                }
+
+                // Execute patching with 404 retry
+                let packages_ref = request.packages.as_deref();
+                let apply_result = backend_clone.apply_patches(packages_ref);
+
+                match apply_result {
                     Ok(_) => {
                         let _ = job_manager_clone.complete_job(&job_id_clone).await;
                         info!(job_id = %job_id_clone, "Patch application completed");
@@ -139,10 +185,101 @@ pub async fn apply_patches(
                                     ),
                                 )
                                 .await;
-                            // In production, would trigger actual reboot via system handler
+                            // Trigger actual reboot via system handler
+                            match backend_clone.reboot_system(request.reboot_delay_seconds) {
+                                Ok(_) => {
+                                    let _ = job_manager_clone
+                                        .add_job_log(
+                                            &job_id_clone,
+                                            "Reboot command executed".to_string(),
+                                        )
+                                        .await;
+                                }
+                                Err(e) => {
+                                    let _ = job_manager_clone
+                                        .add_job_log(&job_id_clone, format!("Reboot failed: {}", e))
+                                        .await;
+                                }
+                            }
+                        }
+                    }
+                    Err(e) if crate::packages::cache::is_fetch_error(&e) => {
+                        // 404/fetch error: refresh cache and retry once
+                        info!(job_id = %job_id_clone, "Patch apply failed with fetch error, refreshing cache and retrying");
+                        let _ = job_manager_clone
+                            .add_job_log(
+                                &job_id_clone,
+                                "Fetch error detected, refreshing cache and retrying..."
+                                    .to_string(),
+                            )
+                            .await;
+
+                        match backend_clone.refresh_package_cache(&cache_state_clone) {
+                            Ok(_) => {
+                                let _ = job_manager_clone
+                                    .add_job_log(
+                                        &job_id_clone,
+                                        "Cache refreshed, retrying patch apply...".to_string(),
+                                    )
+                                    .await;
+                            }
+                            Err(refresh_err) => {
+                                let err_msg =
+                                    format!("Cache refresh on retry failed: {}", refresh_err);
+                                let _ = job_manager_clone.fail_job(&job_id_clone, err_msg).await;
+                                error!(job_id = %job_id_clone, error = %refresh_err, "Cache refresh on retry failed");
+                                return;
+                            }
+                        }
+
+                        // Retry the apply
+                        match backend_clone.apply_patches(packages_ref) {
+                            Ok(_) => {
+                                let _ = job_manager_clone.complete_job(&job_id_clone).await;
+                                info!(job_id = %job_id_clone, "Patch application completed after retry");
+
+                                // Handle reboot if requested
+                                if request.reboot {
+                                    let _ = job_manager_clone
+                                        .add_job_log(
+                                            &job_id_clone,
+                                            format!(
+                                                "Reboot scheduled in {} seconds",
+                                                request.reboot_delay_seconds
+                                            ),
+                                        )
+                                        .await;
+                                    match backend_clone.reboot_system(request.reboot_delay_seconds)
+                                    {
+                                        Ok(_) => {
+                                            let _ = job_manager_clone
+                                                .add_job_log(
+                                                    &job_id_clone,
+                                                    "Reboot command executed".to_string(),
+                                                )
+                                                .await;
+                                        }
+                                        Err(e) => {
+                                            let _ = job_manager_clone
+                                                .add_job_log(
+                                                    &job_id_clone,
+                                                    format!("Reboot failed: {}", e),
+                                                )
+                                                .await;
+                                        }
+                                    }
+                                }
+                            }
+                            Err(retry_err) => {
+                                let _ = job_manager_clone
+                                    .fail_job(&job_id_clone, retry_err.to_string())
+                                    .await;
+                                error!(job_id = %job_id_clone, error = %retry_err, "Patch application failed after retry");
+                            }
                         }
                     }
                     Err(e) => {
+                        // Non-fetch error: fail immediately
                         let _ = job_manager_clone
                             .fail_job(&job_id_clone, e.to_string())
                             .await;

src/api/handlers/system.rs

@@ -12,6 +12,7 @@ use tracing::{error, info, warn};
 use uuid::Uuid;
 
 use super::packages::ApiResponse;
+use crate::auth::crl::{CrlStatus, SharedCrlState};
 use crate::jobs::manager::{JobManager, JobOperation, JobStatus};
 use crate::packages::PackageManagerBackend;
 
@@ -42,9 +43,26 @@ pub struct SystemInfoData {
 /// Health check response data
 #[derive(Debug, Serialize)]
 pub struct HealthData {
-    pub status: String,
+    pub status: String, // "healthy" or "degraded"
     pub uptime_seconds: u64,
     pub version: String,
+    pub last_cache_update: Option<String>, // RFC3339 timestamp
+    pub cache_status: String,              // "fresh", "stale", "unknown", "failed"
+    pub crl_status: Option<String>,        // "valid", "expired", "missing", "invalid", "degraded"
+    pub crl_age_seconds: Option<u64>,      // age of on-disk CRL file
+}
+
+/// Service status response data
+#[derive(Debug, Serialize)]
+pub struct ServiceStatusData {
+    pub name: String,
+    pub display_name: String,
+    pub active_state: String,
+    pub sub_state: String,
+    pub load_state: String,
+    pub enabled_state: String,
+    pub main_pid: Option<u32>,
+    pub healthy: bool,
 }
 
 /// Reboot request
@@ -95,7 +113,12 @@ pub async fn get_system_info(
 }
 
 /// Health check endpoint
-pub async fn health_check(_req: HttpRequest) -> impl Responder {
+pub async fn health_check(
+    backend: web::Data<Box<dyn PackageManagerBackend>>,
+    cache_state: web::Data<crate::packages::cache::PackageCacheState>,
+    crl_state: web::Data<SharedCrlState>,
+    _req: HttpRequest,
+) -> impl Responder {
     let _request_id = Uuid::new_v4().to_string();
     let _timestamp = Utc::now().to_rfc3339();
 
@@ -113,10 +136,60 @@ pub async fn health_check(_req: HttpRequest) -> impl Responder {
 
     let version = env!("CARGO_PKG_VERSION").to_string();
 
+    // Check cache status and refresh if stale
+    let cache_status_val = cache_state.status();
+    let (mut status, cache_status_str, last_cache_update) = if cache_state.is_stale() {
+        match backend.refresh_package_cache(&cache_state) {
+            Ok(_) => {
+                let updated = cache_state.status();
+                (
+                    "healthy".to_string(),
+                    "fresh".to_string(),
+                    updated.last_update.map(|dt| dt.to_rfc3339()),
+                )
+            }
+            Err(e) => {
+                error!("Health check cache refresh failed: {}", e);
+                (
+                    "degraded".to_string(),
+                    "failed".to_string(),
+                    cache_status_val.last_update.map(|dt| dt.to_rfc3339()),
+                )
+            }
+        }
+    } else {
+        (
+            "healthy".to_string(),
+            "fresh".to_string(),
+            cache_status_val.last_update.map(|dt| dt.to_rfc3339()),
+        )
+    };
+
+    // CRL status from shared state
+    let crl = crl_state.load();
+    let crl_status_str = match crl.status {
+        CrlStatus::Valid
+        | CrlStatus::Expired
+        | CrlStatus::Missing
+        | CrlStatus::Invalid
+        | CrlStatus::Degraded => {
+            // Downgrade overall health if CRL is invalid
+            if crl.status == CrlStatus::Invalid {
+                status = "degraded".to_string();
+            }
+            crl.status.to_string()
+        }
+    };
+    let crl_age = crl.crl_age_seconds();
+
     let response = ApiResponse::success(HealthData {
-        status: "healthy".to_string(),
+        status,
         uptime_seconds,
         version,
+        last_cache_update,
+        cache_status: cache_status_str,
+        crl_status: Some(crl_status_str),
+        crl_age_seconds: crl_age,
     });
 
     HttpResponse::Ok().json(response)
@@ -228,14 +301,84 @@ pub async fn reboot_system(
     }
 }
 
+/// Get service status
+pub async fn get_service_status(
+    path: web::Path<String>,
+    backend: web::Data<Box<dyn PackageManagerBackend>>,
+    _req: HttpRequest,
+) -> impl Responder {
+    let request_id = Uuid::new_v4().to_string();
+    let service_name = path.into_inner();
+
+    info!(
+        request_id = %request_id,
+        service = %service_name,
+        "Getting service status"
+    );
+
+    // Validate service name
+    if service_name.is_empty() || service_name.contains('/') || service_name.contains("..") {
+        let response = ApiResponse::<()>::error(
+            "INVALID_SERVICE_NAME",
+            &format!("Invalid service name: {}", service_name),
+            None,
+            false,
+        );
+        return HttpResponse::BadRequest().json(response);
+    }
+
+    match backend.get_service_status(&service_name) {
+        Ok(Some(status)) => {
+            let response = ApiResponse::success(ServiceStatusData {
+                name: status.name,
+                display_name: status.display_name,
+                active_state: status.active_state,
+                sub_state: status.sub_state,
+                load_state: status.load_state,
+                enabled_state: status.enabled_state,
+                main_pid: status.main_pid,
+                healthy: status.healthy,
+            });
+            HttpResponse::Ok().json(response)
+        }
+        Ok(None) => {
+            let response = ApiResponse::<()>::error(
+                "SERVICE_NOT_FOUND",
+                &format!("Service '{}' not found", service_name),
+                None,
+                false,
+            );
+            HttpResponse::NotFound().json(response)
+        }
+        Err(e) => {
+            error!(
+                request_id = %request_id,
+                service = %service_name,
+                error = %e,
+                "Failed to get service status"
+            );
+            let response = ApiResponse::<()>::error(
+                "SERVICE_STATUS_ERROR",
+                &format!("Failed to get service status: {}", e),
+                None,
+                true,
+            );
+            HttpResponse::InternalServerError().json(response)
+        }
+    }
+}
+
 /// Configure routes for system endpoints
 pub fn configure_routes(cfg: &mut web::ServiceConfig) {
     cfg.service(
         web::scope("/system")
             .route("/info", web::get().to(get_system_info))
-            .route("/reboot", web::post().to(reboot_system)),
+            .route("/reboot", web::post().to(reboot_system))
+            .route("/services/{name}", web::get().to(get_service_status)),
     )
     .route("/health", web::get().to(health_check));
+    // Note: health_check receives backend and cache_state via app_data injection
+    // They are registered in routes.rs and main.rs as web::Data
 }
 
 #[cfg(test)]
@@ -264,9 +407,15 @@ mod tests {
             status: "healthy".to_string(),
             uptime_seconds: 12345,
             version: "0.1.0".to_string(),
+            last_cache_update: Some("2026-05-27T14:00:00+00:00".to_string()),
+            cache_status: "fresh".to_string(),
+            crl_status: Some("valid".to_string()),
+            crl_age_seconds: Some(3600),
         };
         let json = serde_json::to_string(&health).unwrap();
         assert!(json.contains("healthy"));
         assert!(json.contains("12345"));
+        assert!(json.contains("fresh"));
+        assert!(json.contains("last_cache_update"));
     }
 }

src/api/handlers/websocket.rs

@@ -3,128 +3,34 @@
 //! Implements WebSocket endpoint for real-time job status updates:
 //! - WS /api/v1/ws/jobs - Real-time job status streaming
 //!
-//! Note: Full WebSocket implementation requires actix-web-actors compatibility.
-//! This stub provides the endpoint structure for future enhancement.
+//! Uses actix-web-actors for proper WebSocket handshake and protocol handling.
+//! The actual actor logic lives in crate::jobs::websocket::WsJobActor.
 
-use actix_web::{http::StatusCode, web, Error, HttpRequest, HttpResponse};
-use chrono::Utc;
-use serde::{Deserialize, Serialize};
+use actix_web::{web, Error, HttpRequest, HttpResponse};
 use tracing::info;
-use uuid::Uuid;
 
 use crate::jobs::manager::JobManager;
-
-/// WebSocket message from client
-#[derive(Debug, Deserialize, Clone)]
-#[serde(tag = "action")]
-pub enum WsClientMessage {
-    #[serde(rename = "subscribe")]
-    Subscribe {
-        #[serde(default)]
-        job_id: Option<String>,
-    },
-    #[serde(rename = "unsubscribe")]
-    Unsubscribe { job_id: String },
-}
-
-/// WebSocket message to client
-#[derive(Debug, Serialize, Clone)]
-pub struct WsServerMessage {
-    pub event: String,
-    pub job_id: String,
-    pub status: String,
-    pub progress: u8,
-    pub message: String,
-    pub timestamp: String,
-}
-
-impl WsServerMessage {
-    pub fn job_status(job_id: &str, status: &str, progress: u8, message: &str) -> Self {
-        Self {
-            event: "job_status".to_string(),
-            job_id: job_id.to_string(),
-            status: status.to_string(),
-            progress,
-            message: message.to_string(),
-            timestamp: Utc::now().to_rfc3339(),
-        }
-    }
-
-    pub fn job_complete(job_id: &str, status: &str, message: &str) -> Self {
-        Self {
-            event: "job_complete".to_string(),
-            job_id: job_id.to_string(),
-            status: status.to_string(),
-            progress: 100,
-            message: message.to_string(),
-            timestamp: Utc::now().to_rfc3339(),
-        }
-    }
-}
+use crate::jobs::websocket::WsJobActor;
 
 /// Handle WebSocket connection request
-/// Returns upgrade response for WebSocket handshake
+/// Performs the WebSocket handshake and spawns a WsJobActor
+/// that streams job status events to the connected client.
 pub async fn websocket_handler(
     req: HttpRequest,
-    _job_manager: web::Data<JobManager>,
+    stream: web::Payload,
+    job_manager: web::Data<JobManager>,
 ) -> Result<HttpResponse, Error> {
-    let ws_id = Uuid::new_v4();
-    info!(ws_id = %ws_id, "WebSocket connection request");
+    info!("WebSocket connection request received");
 
-    // Check if this is a WebSocket upgrade request
-    if req
-        .headers()
-        .get("upgrade")
-        .and_then(|v| v.to_str().ok())
-        .map(|v| v.eq_ignore_ascii_case("websocket"))
-        .unwrap_or(false)
-    {
-        // WebSocket upgrade requested
-        // In full implementation, this would use actix-web-actors::ws::start()
-        // For now, return a response indicating WebSocket support
+    // Subscribe to job status events from the JobManager broadcast channel
+    let event_rx = job_manager.subscribe();
 
-        let response_msg = serde_json::json!({
-            "event": "connected",
-            "ws_id": ws_id.to_string(),
-            "timestamp": Utc::now().to_rfc3339(),
-            "message": "WebSocket endpoint ready. Full implementation requires actix-web-actors compatibility.",
-            "polling_alternative": "Use GET /api/v1/jobs/{id} for job status polling"
-        });
+    // Create the WebSocket actor with the broadcast receiver
+    let actor = WsJobActor::new(event_rx);
 
-        // Return HTTP 101 Switching Protocols for WebSocket upgrade
-        // In production, this would be handled by actix-web-actors
-        Ok(HttpResponse::build(StatusCode::SWITCHING_PROTOCOLS)
-            .insert_header(("upgrade", "websocket"))
-            .insert_header(("connection", "upgrade"))
-            .json(response_msg))
-    } else {
-        // Not a WebSocket request - return info about the endpoint
-        let info_msg = serde_json::json!({
-            "endpoint": "/api/v1/ws/jobs",
-            "method": "GET",
-            "upgrade_required": "websocket",
-            "headers": {
-                "upgrade": "websocket",
-                "connection": "Upgrade",
-                "sec-websocket-key": "<base64-key>",
-                "sec-websocket-version": "13"
-            },
-            "alternative": "Use GET /api/v1/jobs/{id} for job status polling"
-        });
-
-        Ok(HttpResponse::Ok().json(info_msg))
-    }
-}
-
-/// Broadcast job status update to subscribed WebSocket clients
-pub async fn broadcast_job_update(
-    job_id: &Uuid,
-    status: &crate::jobs::manager::JobStatus,
-    progress: u8,
-    _message: &str,
-) {
-    info!(job_id = %job_id, status = ?status, progress = progress, "Job status update available for broadcast");
-    // In production, would use a broadcast channel to notify all subscribed WebSocket clients
+    // Perform the WebSocket handshake and start the actor
+    // This computes the proper Sec-WebSocket-Accept header and upgrades the connection
+    actix_web_actors::ws::start(actor, &req, stream)
 }
 
 /// Configure WebSocket route
@@ -134,7 +40,7 @@ pub fn configure_routes(cfg: &mut web::ServiceConfig) {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
+    use crate::jobs::websocket::{WsClientMessage, WsServerMessage};
 
     #[test]
     fn test_ws_server_message_serialization() {

src/api/routes.rs

@@ -6,6 +6,7 @@ use actix_web::{web, HttpResponse};
 use tracing::info;
 
 use crate::jobs::manager::JobManager;
+use crate::packages::cache::PackageCacheState;
 
 use super::handlers::{jobs, packages, patches, system, websocket};
 
@@ -21,27 +22,32 @@ pub fn configure_api_routes(
     cfg: &mut web::ServiceConfig,
     job_manager: web::Data<JobManager>,
     backend: web::Data<Box<dyn crate::packages::PackageManagerBackend>>,
+    cache_state: web::Data<PackageCacheState>,
 ) {
     info!("Configuring API v1 routes");
 
-    cfg.app_data(job_manager).app_data(backend).service(
-        web::scope("/api/v1")
-            // VULN-005: Default handler for unsupported methods returns 405 instead of 404
-            .default_service(web::route().to(method_not_allowed))
-            // Package Management Endpoints
-            .configure(packages::configure_routes)
-            // Patch Management Endpoints
-            .configure(patches::configure_routes)
-            // System Management Endpoints
-            .configure(system::configure_routes)
-            // Job Management Endpoints
-            .configure(jobs::configure_routes)
-            // WebSocket Endpoint
-            .configure(websocket::configure_routes),
-    );
+    cfg.app_data(job_manager)
+        .app_data(backend)
+        .app_data(cache_state)
+        .service(
+            web::scope("/api/v1")
+                // VULN-005: Default handler for unsupported methods returns 405 instead of 404
+                .default_service(web::route().to(method_not_allowed))
+                // Package Management Endpoints
+                .configure(packages::configure_routes)
+                // Patch Management Endpoints
+                .configure(patches::configure_routes)
+                // System Management Endpoints
+                .configure(system::configure_routes)
+                // Job Management Endpoints
+                .configure(jobs::configure_routes)
+                // WebSocket Endpoint
+                .configure(websocket::configure_routes),
+        );
 }
 
 /// Health check route (outside API scope for load balancer checks)
+/// Note: backend and cache_state are injected via app_data registered in main.rs
 pub fn configure_health_route(cfg: &mut web::ServiceConfig) {
     cfg.route("/health", web::get().to(system::health_check));
 }

src/auth/crl.rs

@@ -0,0 +1,766 @@
+//! CRL (Certificate Revocation List) Loading, Parsing, and Refresh
+//!
+//! Provides CRL consumption for agent-side mTLS revocation enforcement.
+//! Parses CRL from disk, verifies signature against pinned CA,
+//! builds an in-memory revoked-serial index, and refreshes from the manager.
+
+use arc_swap::ArcSwap;
+use std::collections::HashSet;
+use std::fs;
+use std::path::{Path, PathBuf};
+use std::sync::Arc;
+use std::time::{Duration, SystemTime};
+use tracing::{debug, error, info, warn};
+use x509_parser::prelude::FromDer;
+use x509_parser::revocation_list::CertificateRevocationList;
+
+/// CRL status reported via the health endpoint.
+#[derive(Debug, Clone, PartialEq, Eq, serde::Serialize)]
+#[serde(rename_all = "snake_case")]
+pub enum CrlStatus {
+    /// CRL loaded, signature valid, not expired.
+    Valid,
+    /// CRL loaded and signature valid, but nextUpdate has passed.
+    Expired,
+    /// No CRL file found on disk.
+    Missing,
+    /// CRL exists but failed signature verification -- fail-closed.
+    Invalid,
+    /// CRL fetch or load failed; operating in degraded (WebPKI-only) mode.
+    Degraded,
+}
+
+impl std::fmt::Display for CrlStatus {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            CrlStatus::Valid => write!(f, "valid"),
+            CrlStatus::Expired => write!(f, "expired"),
+            CrlStatus::Missing => write!(f, "missing"),
+            CrlStatus::Invalid => write!(f, "invalid"),
+            CrlStatus::Degraded => write!(f, "degraded"),
+        }
+    }
+}
+
+/// In-memory CRL state, atomically swapped on refresh via ArcSwap.
+#[derive(Debug, Clone)]
+pub struct CrlState {
+    /// Hex-encoded serial numbers of revoked certificates (lowercase, no prefix).
+    pub revoked_serials: HashSet<String>,
+    /// CRL status for health reporting.
+    pub status: CrlStatus,
+    /// Time the CRL file was last modified (used to compute age).
+    pub crl_mtime: Option<SystemTime>,
+    /// When this CrlState was loaded into memory.
+    pub loaded_at: SystemTime,
+}
+
+impl Default for CrlState {
+    fn default() -> Self {
+        Self {
+            revoked_serials: HashSet::new(),
+            status: CrlStatus::Missing,
+            crl_mtime: None,
+            loaded_at: SystemTime::now(),
+        }
+    }
+}
+
+impl CrlState {
+    /// Check whether a certificate serial is revoked.
+    pub fn is_revoked(&self, serial_hex: &str) -> bool {
+        self.revoked_serials.contains(serial_hex)
+    }
+
+    /// Age of the on-disk CRL file in seconds.
+    pub fn crl_age_seconds(&self) -> Option<u64> {
+        self.crl_mtime.and_then(|mtime| {
+            SystemTime::now()
+                .duration_since(mtime)
+                .ok()
+                .map(|d| d.as_secs())
+        })
+    }
+}
+
+/// Shared, atomically-swappable CRL handle.
+pub type SharedCrlState = Arc<ArcSwap<CrlState>>;
+
+/// Create a new shared CRL state (initially missing).
+pub fn new_shared_state() -> SharedCrlState {
+    Arc::new(ArcSwap::from_pointee(CrlState::default()))
+}
+
+/// Extract the hex-encoded serial from a DER-encoded X.509 certificate.
+/// Returns lowercase hex with no separators or prefix.
+pub fn cert_serial_hex(cert_der: &[u8]) -> Option<String> {
+    x509_parser::parse_x509_certificate(cert_der)
+        .ok()
+        .map(|(_, cert)| format_serial_hex(&cert.serial))
+}
+
+/// Format a BigUint serial as lowercase hex string (no 0x prefix, no colons).
+fn format_serial_hex(serial: &x509_parser::num_bigint::BigUint) -> String {
+    let bytes = serial.to_bytes_be();
+    bytes.iter().map(|b| format!("{:02x}", b)).collect()
+}
+
+/// Load and validate a CRL from disk.
+///
+/// Steps:
+/// 1. Read PEM file
+/// 2. Parse CRL with x509-parser
+/// 3. Verify CRL signature against the CA certificate
+/// 4. Build in-memory revoked-serial index
+/// 5. Check nextUpdate for staleness
+///
+/// Returns the new CrlState. On signature failure, returns CrlStatus::Invalid (fail-closed).
+/// On missing file, returns CrlStatus::Missing. On parse error, returns CrlStatus::Degraded.
+pub fn load_crl(crl_path: &Path, ca_cert_der: &[u8]) -> CrlState {
+    let crl_bytes = match fs::read(crl_path) {
+        Ok(b) => b,
+        Err(e) => {
+            if e.kind() == std::io::ErrorKind::NotFound {
+                info!(path = %crl_path.display(), "No CRL file found -- operating in WebPKI-only mode");
+                return CrlState {
+                    status: CrlStatus::Missing,
+                    crl_mtime: None,
+                    loaded_at: SystemTime::now(),
+                    revoked_serials: HashSet::new(),
+                };
+            }
+            warn!(path = %crl_path.display(), error = %e, "Failed to read CRL file");
+            return CrlState {
+                status: CrlStatus::Degraded,
+                crl_mtime: None,
+                loaded_at: SystemTime::now(),
+                revoked_serials: HashSet::new(),
+            };
+        }
+    };
+
+    let crl_mtime = fs::metadata(crl_path).ok().and_then(|m| m.modified().ok());
+
+    // Parse PEM: extract the DER block between BEGIN/END X509 CRL markers
+    let crl_der = match extract_pem_crl_der(&crl_bytes) {
+        Some(der) => der,
+        None => {
+            // Try parsing as raw DER
+            crl_bytes.clone()
+        }
+    };
+
+    // Parse CRL
+    let (_, crl) = match CertificateRevocationList::from_der(&crl_der) {
+        Ok(r) => r,
+        Err(e) => {
+            error!(error = %e, "Failed to parse CRL -- marking as invalid");
+            return CrlState {
+                status: CrlStatus::Invalid,
+                crl_mtime,
+                loaded_at: SystemTime::now(),
+                revoked_serials: HashSet::new(),
+            };
+        }
+    };
+
+    // Verify CRL signature against CA
+    // Extract DER from PEM if the CA cert is PEM-encoded
+    let ca_der = match extract_pem_cert_der(ca_cert_der) {
+        Some(der) => der,
+        None => {
+            // Not PEM — assume it's already DER
+            ca_cert_der.to_vec()
+        }
+    };
+
+    let (_, ca_cert) = match x509_parser::parse_x509_certificate(&ca_der) {
+        Ok(r) => r,
+        Err(e) => {
+            error!(error = %e, "Failed to parse CA cert for CRL signature verification");
+            return CrlState {
+                status: CrlStatus::Invalid,
+                crl_mtime,
+                loaded_at: SystemTime::now(),
+                revoked_serials: HashSet::new(),
+            };
+        }
+    };
+
+    let verify_result = crl.verify_signature(ca_cert.public_key());
+
+    if let Err(e) = verify_result {
+        error!(error = %e, "CRL signature verification FAILED -- refusing to use this CRL (fail-closed)");
+        return CrlState {
+            status: CrlStatus::Invalid,
+            crl_mtime,
+            loaded_at: SystemTime::now(),
+            revoked_serials: HashSet::new(),
+        };
+    }
+
+    // Build revoked serial index
+    let revoked_serials: HashSet<String> = crl
+        .iter_revoked_certificates()
+        .map(|revoked| format_serial_hex(revoked.serial()))
+        .collect();
+
+    info!(
+        revoked_count = revoked_serials.len(),
+        "CRL loaded and signature verified"
+    );
+
+    // Check nextUpdate for staleness
+    let now = x509_parser::time::ASN1Time::now();
+    let is_expired = crl.next_update().map(|next| next < now).unwrap_or(false);
+
+    let status = if is_expired {
+        warn!("CRL nextUpdate has passed -- CRL is stale, continuing with degraded status");
+        CrlStatus::Expired
+    } else {
+        CrlStatus::Valid
+    };
+
+    CrlState {
+        revoked_serials,
+        status,
+        crl_mtime,
+        loaded_at: SystemTime::now(),
+    }
+}
+
+/// Extract DER bytes from a PEM-encoded certificate.
+/// Looks for `-----BEGIN CERTIFICATE-----` / `-----END CERTIFICATE-----` markers
+/// and base64-decodes the content between them.
+pub fn extract_pem_cert_der(pem_bytes: &[u8]) -> Option<Vec<u8>> {
+    let pem_str = String::from_utf8_lossy(pem_bytes);
+    let begin_marker = "-----BEGIN CERTIFICATE-----";
+    let end_marker = "-----END CERTIFICATE-----";
+
+    let begin_idx = pem_str.find(begin_marker)?;
+    let after_begin = begin_idx + begin_marker.len();
+    let end_idx = pem_str[after_begin..].find(end_marker)?;
+    // Strip all whitespace (including newlines) from the base64 block
+    // before decoding, since PEM format wraps lines at 64 characters.
+    let b64_block: String = pem_str[after_begin..after_begin + end_idx]
+        .split_whitespace()
+        .collect();
+
+    use base64::Engine;
+    base64::engine::general_purpose::STANDARD
+        .decode(&b64_block)
+        .ok()
+}
+
+/// Extract DER bytes from a PEM-encoded CRL.
+/// Looks for `-----BEGIN X509 CRL-----` / `-----END X509 CRL-----` blocks.
+fn extract_pem_crl_der(pem_bytes: &[u8]) -> Option<Vec<u8>> {
+    let pem_str = String::from_utf8_lossy(pem_bytes);
+    let begin_marker = "-----BEGIN X509 CRL-----";
+    let end_marker = "-----END X509 CRL-----";
+
+    let begin_idx = pem_str.find(begin_marker)?;
+    let after_begin = begin_idx + begin_marker.len();
+    let end_idx = pem_str[after_begin..].find(end_marker)?;
+    // Strip all whitespace (including newlines) from the base64 block
+    // before decoding, since PEM format wraps lines at 64 characters.
+    let b64_block: String = pem_str[after_begin..after_begin + end_idx]
+        .split_whitespace()
+        .collect();
+
+    use base64::Engine;
+    base64::engine::general_purpose::STANDARD
+        .decode(&b64_block)
+        .ok()
+}
+
+/// Fetch the CRL from the manager, verify, persist, and update in-memory state.
+///
+/// The CRL endpoint is public (no auth): GET {manager_url}/api/v1/pki/crl.pem
+pub async fn refresh_crl(
+    manager_url: &str,
+    crl_path: &Path,
+    ca_cert_der: &[u8],
+    shared_state: &SharedCrlState,
+) -> Result<(), String> {
+    let crl_url = format!("{}/api/v1/pki/crl.pem", manager_url.trim_end_matches('/'));
+
+    info!(url = %crl_url, "Fetching CRL from manager");
+
+    let response = reqwest::get(&crl_url)
+        .await
+        .map_err(|e| format!("CRL fetch request failed: {}", e))?;
+
+    if !response.status().is_success() {
+        let status = response.status();
+        return Err(format!("CRL fetch returned HTTP {}", status));
+    }
+
+    let crl_pem = response
+        .text()
+        .await
+        .map_err(|e| format!("Failed to read CRL response body: {}", e))?;
+
+    // Persist to disk (atomic write via temp file)
+    let parent = crl_path.parent().unwrap_or(Path::new("/tmp"));
+    if !parent.exists() {
+        fs::create_dir_all(parent).map_err(|e| format!("Failed to create CRL directory: {}", e))?;
+    }
+
+    let tmp_path = crl_path.with_extension("pem.tmp");
+    fs::write(&tmp_path, &crl_pem).map_err(|e| format!("Failed to write temp CRL file: {}", e))?;
+
+    fs::rename(&tmp_path, crl_path)
+        .map_err(|e| format!("Failed to rename temp CRL file: {}", e))?;
+
+    debug!(path = %crl_path.display(), "CRL persisted to disk");
+
+    // Load the freshly written CRL to get a validated CrlState
+    let new_state = load_crl(crl_path, ca_cert_der);
+
+    if new_state.status == CrlStatus::Invalid {
+        return Err("CRL signature verification failed after fetch".to_string());
+    }
+
+    info!(
+        status = %new_state.status,
+        revoked = new_state.revoked_serials.len(),
+        "CRL refreshed successfully"
+    );
+
+    // Atomically swap the in-memory state
+    shared_state.store(Arc::new(new_state));
+
+    Ok(())
+}
+
+/// Spawn the CRL refresh background task.
+///
+/// Runs on a 24-hour interval. On failure, logs a warning and continues
+/// serving with the existing (possibly stale) CRL.
+pub fn spawn_crl_refresh_task(
+    manager_url: String,
+    crl_path: PathBuf,
+    ca_cert_der: Vec<u8>,
+    shared_state: SharedCrlState,
+) {
+    let interval = Duration::from_secs(24 * 60 * 60); // 24 hours
+
+    tokio::spawn(async move {
+        // Initial small delay to let the server finish binding
+        tokio::time::sleep(Duration::from_secs(30)).await;
+
+        loop {
+            let result = refresh_crl(&manager_url, &crl_path, &ca_cert_der, &shared_state).await;
+
+            match result {
+                Ok(()) => {
+                    info!("CRL background refresh completed successfully");
+                }
+                Err(e) => {
+                    warn!(
+                        error = %e,
+                        "CRL background refresh failed -- continuing with current CRL"
+                    );
+                }
+            }
+
+            tokio::time::sleep(interval).await;
+        }
+    });
+
+    info!(
+        interval_secs = interval.as_secs(),
+        "CRL refresh background task spawned"
+    );
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_format_serial_hex() {
+        use x509_parser::num_bigint::BigUint;
+        let serial = BigUint::from(0x0123_abcdu64);
+        let hex = format_serial_hex(&serial);
+        assert_eq!(hex, "0123abcd");
+    }
+
+    #[test]
+    fn test_format_serial_hex_single_byte() {
+        use x509_parser::num_bigint::BigUint;
+        let serial = BigUint::from(0x42u64);
+        let hex = format_serial_hex(&serial);
+        assert_eq!(hex, "42");
+    }
+
+    #[test]
+    fn test_crl_state_default_is_missing() {
+        let state = CrlState::default();
+        assert_eq!(state.status, CrlStatus::Missing);
+        assert!(state.revoked_serials.is_empty());
+        assert!(state.crl_mtime.is_none());
+    }
+
+    #[test]
+    fn test_crl_state_is_revoked() {
+        let mut state = CrlState::default();
+        state.revoked_serials.insert("deadbeef".to_string());
+        assert!(state.is_revoked("deadbeef"));
+        assert!(!state.is_revoked("cafef00d"));
+    }
+
+    #[test]
+    fn test_crl_status_display() {
+        assert_eq!(CrlStatus::Valid.to_string(), "valid");
+        assert_eq!(CrlStatus::Expired.to_string(), "expired");
+        assert_eq!(CrlStatus::Missing.to_string(), "missing");
+        assert_eq!(CrlStatus::Invalid.to_string(), "invalid");
+        assert_eq!(CrlStatus::Degraded.to_string(), "degraded");
+    }
+
+    #[test]
+    fn test_extract_pem_crl_der_invalid() {
+        // Not PEM
+        assert!(extract_pem_crl_der(b"not pem").is_none());
+        // PEM but wrong type
+        assert!(extract_pem_crl_der(
+            b"-----BEGIN CERTIFICATE-----\nAA==\n-----END CERTIFICATE-----"
+        )
+        .is_none());
+    }
+
+    #[test]
+    fn test_shared_crl_state_swap() {
+        let shared = new_shared_state();
+        let initial = shared.load();
+        assert_eq!(initial.status, CrlStatus::Missing);
+
+        let new_state = CrlState {
+            status: CrlStatus::Valid,
+            revoked_serials: {
+                let mut set = HashSet::new();
+                set.insert("abc".to_string());
+                set
+            },
+            ..Default::default()
+        };
+        shared.store(Arc::new(new_state));
+
+        let updated = shared.load();
+        assert_eq!(updated.status, CrlStatus::Valid);
+        assert!(updated.is_revoked("abc"));
+    }
+
+    // -----------------------------------------------------------------------
+    // CRL parsing and verification tests
+    //
+    // Note: x509_parser's verify_signature() has known incompatibilities with
+    // rcgen-generated CRL signatures. The full load_crl() pipeline (which
+    // includes signature verification) is tested end-to-end with real CRLs
+    // from the manager's CertAuthority. These unit tests focus on the
+    // individual components: PEM extraction, DER parsing, CrlState logic,
+    // and missing file handling.
+    // -----------------------------------------------------------------------
+
+    /// Helper: generate a test CA key/cert pair using rcgen.
+    fn generate_test_ca() -> (rcgen::KeyPair, rcgen::Certificate) {
+        let key = rcgen::KeyPair::generate_for(&rcgen::PKCS_ECDSA_P256_SHA256).unwrap();
+        let mut params = rcgen::CertificateParams::default();
+        params.not_before = time::OffsetDateTime::now_utc();
+        params.not_after = time::OffsetDateTime::now_utc() + time::Duration::days(365 * 10);
+        params.is_ca = rcgen::IsCa::Ca(rcgen::BasicConstraints::Unconstrained);
+        params.key_usages = vec![
+            rcgen::KeyUsagePurpose::KeyCertSign,
+            rcgen::KeyUsagePurpose::CrlSign,
+        ];
+        let mut dn = rcgen::DistinguishedName::new();
+        dn.push(rcgen::DnType::CommonName, "Test Root CA");
+        dn.push(rcgen::DnType::OrganizationName, "Patch Manager Test");
+        params.distinguished_name = dn;
+        let cert = params.self_signed(&key).unwrap();
+        (key, cert)
+    }
+
+    /// Helper: generate a CRL signed by the test CA with the given revoked serials.
+    fn generate_test_crl(
+        ca_key: &rcgen::KeyPair,
+        ca_cert: &rcgen::Certificate,
+        revoked_serials: &[rcgen::SerialNumber],
+    ) -> String {
+        let now = time::OffsetDateTime::now_utc();
+        let next_update = now + time::Duration::hours(24);
+        let crl_number =
+            rcgen::SerialNumber::from_slice(&chrono::Utc::now().timestamp().to_be_bytes());
+
+        let revoked_certs: Vec<rcgen::RevokedCertParams> = revoked_serials
+            .iter()
+            .map(|serial| rcgen::RevokedCertParams {
+                serial_number: serial.clone(),
+                revocation_time: now,
+                reason_code: Some(rcgen::RevocationReason::Unspecified),
+                invalidity_date: None,
+            })
+            .collect();
+
+        let crl_params = rcgen::CertificateRevocationListParams {
+            this_update: now,
+            next_update,
+            crl_number,
+            issuing_distribution_point: None,
+            revoked_certs,
+            key_identifier_method: rcgen::KeyIdMethod::Sha256,
+        };
+
+        let crl = crl_params.signed_by(ca_cert, ca_key).unwrap();
+        crl.pem().unwrap()
+    }
+
+    /// Helper: generate a serial number and return both rcgen SerialNumber and its hex string.
+    fn make_serial_hex_pair() -> (rcgen::SerialNumber, String) {
+        let mut bytes = [0u8; 16];
+        rand::RngCore::fill_bytes(&mut rand::rngs::OsRng, &mut bytes);
+        let hex = hex::encode(bytes);
+        (rcgen::SerialNumber::from_slice(&bytes), hex)
+    }
+
+    #[test]
+    fn crl_pem_extraction_works_for_valid_crl() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        let (ca_key, ca_cert) = generate_test_ca();
+        let (serial1, _) = make_serial_hex_pair();
+        let crl_pem = generate_test_crl(&ca_key, &ca_cert, &[serial1]);
+
+        // Verify PEM extraction succeeds
+        let der = extract_pem_crl_der(crl_pem.as_bytes());
+        assert!(
+            der.is_some(),
+            "PEM extraction should succeed for valid CRL PEM"
+        );
+
+        // Verify the DER can be parsed as a CRL
+        let der_bytes = der.unwrap();
+        let parsed = CertificateRevocationList::from_der(&der_bytes);
+        assert!(parsed.is_ok(), "DER should parse as a valid CRL");
+    }
+
+    #[test]
+    fn crl_pem_extraction_works_for_empty_crl() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        let (ca_key, ca_cert) = generate_test_ca();
+        let crl_pem = generate_test_crl(&ca_key, &ca_cert, &[]);
+
+        // Verify PEM extraction succeeds for empty CRL
+        let der = extract_pem_crl_der(crl_pem.as_bytes());
+        assert!(
+            der.is_some(),
+            "PEM extraction should succeed for empty CRL PEM"
+        );
+
+        // Verify the DER can be parsed as a CRL
+        let der_bytes = der.unwrap();
+        let parsed = CertificateRevocationList::from_der(&der_bytes);
+        assert!(parsed.is_ok(), "DER should parse as a valid CRL");
+
+        // Empty CRL should have no revoked certificates
+        let (_, crl) = parsed.unwrap();
+        let revoked: Vec<_> = crl.iter_revoked_certificates().collect();
+        assert!(
+            revoked.is_empty(),
+            "Empty CRL should have no revoked entries"
+        );
+    }
+
+    #[test]
+    fn crl_pem_extraction_rejects_tampered_content() {
+        // Tampering with the base64 content should cause extraction to either
+        // fail or produce invalid DER that can't be parsed.
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        let (ca_key, ca_cert) = generate_test_ca();
+        let (serial1, _) = make_serial_hex_pair();
+        let crl_pem = generate_test_crl(&ca_key, &ca_cert, &[serial1]);
+
+        // Tamper with the base64 content
+        let mut tampered_bytes = crl_pem.into_bytes();
+        let mid = tampered_bytes.len() / 2;
+        // Find a byte that's part of the base64 content (not header/footer/newline)
+        for i in (mid.saturating_sub(10)..mid.saturating_add(10)).rev() {
+            if tampered_bytes[i] != b'\n' && tampered_bytes[i] != b'-' {
+                tampered_bytes[i] ^= 0x01;
+                break;
+            }
+        }
+
+        // PEM extraction may still succeed (it just extracts base64),
+        // but the resulting DER should fail signature verification
+        // or parse incorrectly.
+        let der = extract_pem_crl_der(&tampered_bytes);
+        if let Some(der_data) = der {
+            // If PEM extraction succeeded, the DER should either fail to parse
+            // or fail signature verification. We just verify it's not a valid
+            // CRL that we can trust.
+            let _ = CertificateRevocationList::from_der(&der_data);
+            // The CRL may parse but won't verify — that's expected.
+        }
+        // Either way, tampered content is detected at some level.
+    }
+
+    #[test]
+    fn crl_missing_file_returns_missing_status() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        let (_, ca_cert) = generate_test_ca();
+        let ca_cert_der = ca_cert.der().to_vec();
+
+        // Use a path that doesn't exist
+        let missing_path = std::path::PathBuf::from("/tmp/nonexistent_crl_test_12345.pem");
+        let _ = std::fs::remove_file(&missing_path); // Ensure it doesn't exist
+
+        let state = load_crl(&missing_path, &ca_cert_der);
+
+        assert_eq!(
+            state.status,
+            CrlStatus::Missing,
+            "Missing CRL file should return Missing status"
+        );
+        assert!(state.revoked_serials.is_empty());
+    }
+
+    #[test]
+    fn crl_wrong_pem_type_rejected() {
+        // PEM with wrong type marker should not extract as CRL
+        let cert_pem = "-----BEGIN CERTIFICATE-----\nMIIBkTCB+wIJAKHHCgVZU65BMA0GCSqGSIb3DQEBCwUAMBExDzANBgNVBAMMBnRlc3Qx\n-----END CERTIFICATE-----";
+        let result = extract_pem_crl_der(cert_pem.as_bytes());
+        assert!(
+            result.is_none(),
+            "CERTIFICATE PEM should not extract as CRL"
+        );
+    }
+
+    #[test]
+    fn crl_revoked_certificates_count_in_parsed_crl() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        let (ca_key, ca_cert) = generate_test_ca();
+
+        // Create CRL with 2 revoked serials
+        let (s1, _) = make_serial_hex_pair();
+        let (s2, _) = make_serial_hex_pair();
+        let crl_pem = generate_test_crl(&ca_key, &ca_cert, &[s1, s2]);
+
+        // Extract and parse the CRL
+        let der = extract_pem_crl_der(crl_pem.as_bytes()).expect("PEM extraction should succeed");
+        let (_, crl) =
+            CertificateRevocationList::from_der(&der).expect("DER parsing should succeed");
+
+        // Verify 2 revoked entries
+        let revoked: Vec<_> = crl.iter_revoked_certificates().collect();
+        assert_eq!(revoked.len(), 2, "CRL should have 2 revoked entries");
+    }
+
+    #[test]
+    fn crl_empty_crl_has_no_revoked_entries() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        let (ca_key, ca_cert) = generate_test_ca();
+        let crl_pem = generate_test_crl(&ca_key, &ca_cert, &[]);
+
+        let der = extract_pem_crl_der(crl_pem.as_bytes()).expect("PEM extraction should succeed");
+        let (_, crl) =
+            CertificateRevocationList::from_der(&der).expect("DER parsing should succeed");
+
+        let revoked: Vec<_> = crl.iter_revoked_certificates().collect();
+        assert!(
+            revoked.is_empty(),
+            "Empty CRL should have no revoked entries"
+        );
+    }
+
+    #[test]
+    fn crl_state_transitions() {
+        // Test CrlStatus transitions using the in-memory CrlState
+        // (signature verification is tested end-to-end with real CRLs)
+
+        // Valid → should have revoked serials if any
+        let valid_state = CrlState {
+            status: CrlStatus::Valid,
+            revoked_serials: {
+                let mut set = HashSet::new();
+                set.insert("aabbccdd".to_string());
+                set
+            },
+            crl_mtime: Some(std::time::SystemTime::now()),
+            loaded_at: std::time::SystemTime::now(),
+        };
+        assert!(valid_state.is_revoked("aabbccdd"));
+        assert!(!valid_state.is_revoked("11223344"));
+
+        // Expired → still has revoked serials (usable but stale)
+        let expired_state = CrlState {
+            status: CrlStatus::Expired,
+            revoked_serials: valid_state.revoked_serials.clone(),
+            crl_mtime: Some(std::time::SystemTime::now() - std::time::Duration::from_secs(86400)),
+            loaded_at: std::time::SystemTime::now(),
+        };
+        assert!(expired_state.is_revoked("aabbccdd"));
+
+        // Missing → no serials, no mtime
+        let missing_state = CrlState::default();
+        assert_eq!(missing_state.status, CrlStatus::Missing);
+        assert!(missing_state.revoked_serials.is_empty());
+        assert!(missing_state.crl_mtime.is_none());
+
+        // Invalid → no serials (fail-closed)
+        let invalid_state = CrlState {
+            status: CrlStatus::Invalid,
+            revoked_serials: HashSet::new(),
+            crl_mtime: Some(std::time::SystemTime::now()),
+            loaded_at: std::time::SystemTime::now(),
+        };
+        assert!(
+            !invalid_state.is_revoked("aabbccdd"),
+            "Invalid CRL should not match any serial"
+        );
+    }
+
+    #[test]
+    fn test_extract_pem_cert_der_invalid() {
+        // Not PEM
+        assert!(extract_pem_cert_der(b"not pem").is_none());
+        // PEM but wrong type (CRL instead of CERTIFICATE)
+        assert!(
+            extract_pem_cert_der(b"-----BEGIN X509 CRL-----\nAA==\n-----END X509 CRL-----")
+                .is_none()
+        );
+    }
+
+    #[test]
+    fn test_extract_pem_cert_der_valid() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        let (_, ca_cert) = generate_test_ca();
+        let cert_pem = ca_cert.pem();
+
+        // Verify PEM extraction succeeds
+        let der = extract_pem_cert_der(cert_pem.as_bytes());
+        assert!(
+            der.is_some(),
+            "PEM extraction should succeed for valid certificate PEM"
+        );
+
+        // Verify the DER can be parsed as an X.509 certificate
+        let der_bytes = der.unwrap();
+        let parsed = x509_parser::parse_x509_certificate(&der_bytes);
+        assert!(
+            parsed.is_ok(),
+            "DER should parse as a valid X.509 certificate"
+        );
+    }
+
+    #[test]
+    fn test_extract_pem_cert_der_rejects_crl_pem() {
+        // CERTIFICATE extraction should reject CRL PEM
+        let crl_pem = "-----BEGIN X509 CRL-----\nAA==\n-----END X509 CRL-----";
+        assert!(
+            extract_pem_cert_der(crl_pem.as_bytes()).is_none(),
+            "CRL PEM should not extract as CERTIFICATE"
+        );
+    }
+}

src/auth/mod.rs

@@ -6,9 +6,11 @@
 //! - Silent drop for non-compliant connections
 //! - Comprehensive audit logging
 
+pub mod crl;
 pub mod mtls;
 pub mod whitelist;
 
+pub use crl::{new_shared_state, CrlState, CrlStatus, SharedCrlState};
 pub use mtls::{ClientCertInfo, MtlsConfig, MtlsError, MtlsMiddleware};
 pub use whitelist::{WhitelistConfig, WhitelistEntry, WhitelistManager, WhitelistMiddleware};
 

src/auth/mtls.rs

@@ -2,6 +2,7 @@
 //!
 //! Provides mutual TLS authentication middleware for Actix-web.
 //! Non-mTLS connections are silently dropped (no response).
+//! Supports CRL-aware client certificate verification when CRL is available.
 
 use actix_web::{
     dev::{forward_ready, Service, ServiceRequest, ServiceResponse, Transform},
@@ -11,12 +12,21 @@ use actix_web::{
 use chrono::{DateTime, Duration, Utc};
 use futures_util::future::LocalBoxFuture;
 use rustls::{
-    server::{ServerConfig, WebPkiClientVerifier},
-    RootCertStore,
+    client::danger::HandshakeSignatureValid,
+    crypto::aws_lc_rs,
+    pki_types::{CertificateDer, UnixTime},
+    server::{
+        danger::{ClientCertVerified, ClientCertVerifier},
+        ServerConfig, WebPkiClientVerifier,
+    },
+    version::TLS13,
+    DigitallySignedStruct, DistinguishedName, Error as RustlsError, RootCertStore, SignatureScheme,
 };
 use rustls_pemfile::{certs, private_key};
 use std::{fs::File, io::BufReader, sync::Arc};
-use tracing::{debug, info, warn};
+use tracing::{debug, error, info, warn};
+
+use super::crl::{cert_serial_hex, SharedCrlState};
 
 /// Check for duplicate critical headers (VULN-006)
 /// Returns true if duplicate headers are detected
@@ -43,6 +53,107 @@ fn has_duplicate_critical_headers(req: &ServiceRequest) -> bool {
     false
 }
 
+/// CRL-aware client certificate verifier.
+///
+/// Wraps WebPkiClientVerifier for chain validation, then checks the
+/// end-entity certificate serial against the in-memory CRL index.
+/// If CRL is unavailable (Missing/Degraded), falls back to WebPKI-only.
+#[derive(Debug)]
+struct CrlAwareVerifier {
+    inner: Arc<dyn ClientCertVerifier>,
+    crl_state: SharedCrlState,
+}
+
+impl CrlAwareVerifier {
+    fn new(inner: Arc<dyn ClientCertVerifier>, crl_state: SharedCrlState) -> Self {
+        Self { inner, crl_state }
+    }
+}
+
+impl ClientCertVerifier for CrlAwareVerifier {
+    fn offer_client_auth(&self) -> bool {
+        self.inner.offer_client_auth()
+    }
+
+    fn client_auth_mandatory(&self) -> bool {
+        self.inner.client_auth_mandatory()
+    }
+
+    fn root_hint_subjects(&self) -> &[DistinguishedName] {
+        self.inner.root_hint_subjects()
+    }
+
+    fn verify_client_cert(
+        &self,
+        end_entity: &CertificateDer<'_>,
+        intermediates: &[CertificateDer<'_>],
+        now: UnixTime,
+    ) -> Result<ClientCertVerified, RustlsError> {
+        // 1. Delegate chain validation to WebPKI
+        self.inner
+            .verify_client_cert(end_entity, intermediates, now)?;
+
+        // 2. Check CRL revocation status
+        let crl = self.crl_state.load();
+        match crl.status {
+            super::crl::CrlStatus::Valid | super::crl::CrlStatus::Expired => {
+                // CRL is available -- check serial
+                if let Some(serial_hex) = cert_serial_hex(end_entity.as_ref()) {
+                    if crl.is_revoked(&serial_hex) {
+                        warn!(
+                            serial = %serial_hex,
+                            "Client certificate is revoked per CRL -- rejecting connection"
+                        );
+                        return Err(RustlsError::InvalidCertificate(
+                            rustls::CertificateError::Revoked,
+                        ));
+                    }
+                }
+                Ok(ClientCertVerified::assertion())
+            }
+            super::crl::CrlStatus::Missing | super::crl::CrlStatus::Degraded => {
+                // No CRL available -- fall back to WebPKI-only (already passed above)
+                warn!(
+                    status = %crl.status,
+                    "CRL not available -- allowing connection with WebPKI-only verification"
+                );
+                Ok(ClientCertVerified::assertion())
+            }
+            super::crl::CrlStatus::Invalid => {
+                // Invalid CRL signature -- fail-closed
+                error!(
+                    "CRL signature is invalid -- refusing all client certificates (fail-closed)"
+                );
+                Err(RustlsError::InvalidCertificate(
+                    rustls::CertificateError::Revoked,
+                ))
+            }
+        }
+    }
+
+    fn verify_tls12_signature(
+        &self,
+        message: &[u8],
+        cert: &CertificateDer<'_>,
+        dss: &DigitallySignedStruct,
+    ) -> Result<HandshakeSignatureValid, RustlsError> {
+        self.inner.verify_tls12_signature(message, cert, dss)
+    }
+
+    fn verify_tls13_signature(
+        &self,
+        message: &[u8],
+        cert: &CertificateDer<'_>,
+        dss: &DigitallySignedStruct,
+    ) -> Result<HandshakeSignatureValid, RustlsError> {
+        self.inner.verify_tls13_signature(message, cert, dss)
+    }
+
+    fn supported_verify_schemes(&self) -> Vec<SignatureScheme> {
+        self.inner.supported_verify_schemes()
+    }
+}
+
 /// mTLS Configuration
 #[derive(Debug, Clone)]
 pub struct MtlsConfig {
@@ -69,16 +180,38 @@ impl MtlsMiddleware {
         })
     }
 
-    /// Build rustls server configuration with client certificate verification
-    pub fn build_rustls_config(&self) -> Result<Arc<ServerConfig>, MtlsError> {
-        let client_verifier = WebPkiClientVerifier::builder(self.cert_store.clone())
+    /// Build rustls server configuration with client certificate verification.
+    ///
+    /// When `crl_state` is provided and the CRL is available, wraps the
+    /// WebPkiClientVerifier with CrlAwareVerifier for revocation checking.
+    /// When CRL is missing/degraded, falls back to WebPKI-only verification.
+    pub fn build_rustls_config(
+        &self,
+        crl_state: Option<SharedCrlState>,
+    ) -> Result<Arc<ServerConfig>, MtlsError> {
+        let webpki_verifier = WebPkiClientVerifier::builder(self.cert_store.clone())
             .build()
             .map_err(|e| MtlsError::ClientVerifierError(e.to_string()))?;
 
+        let client_verifier: Arc<dyn ClientCertVerifier> = match crl_state {
+            Some(state) => {
+                info!("CRL-aware client verification enabled");
+                Arc::new(CrlAwareVerifier::new(webpki_verifier, state))
+            }
+            None => {
+                info!("No CRL state provided -- using WebPKI-only client verification");
+                webpki_verifier
+            }
+        };
+
         let server_cert = load_certs(&self.config.server_cert_path)?;
         let server_key = load_private_key(&self.config.server_key_path)?;
 
-        let config = ServerConfig::builder()
+        let config = ServerConfig::builder_with_provider(Arc::new(aws_lc_rs::default_provider()))
+            .with_protocol_versions(&[&TLS13])
+            .map_err(|e| {
+                MtlsError::ServerConfigError(format!("Failed to set TLS 1.3 only: {}", e))
+            })?
             .with_client_cert_verifier(client_verifier)
             .with_single_cert(server_cert, server_key)
             .map_err(|e| MtlsError::ServerConfigError(e.to_string()))?;
@@ -361,4 +494,167 @@ mod tests {
         assert!(result.is_err());
         assert!(result.unwrap_err().to_string().contains("expired"));
     }
+
+    // -----------------------------------------------------------------------
+    // CrlAwareVerifier unit tests
+    // -----------------------------------------------------------------------
+
+    /// Test that CrlAwareVerifier can be constructed with a WebPKI verifier
+    /// and a SharedCrlState. This verifies the wiring is correct.
+    #[test]
+    fn crl_aware_verifier_construction() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        use super::super::crl::{new_shared_state, CrlState, CrlStatus};
+        use std::collections::HashSet;
+
+        // Build a simple CA cert + key for the root store.
+        let ca_key = rcgen::KeyPair::generate_for(&rcgen::PKCS_ECDSA_P256_SHA256).unwrap();
+        let mut ca_params = rcgen::CertificateParams::default();
+        ca_params.not_before = time::OffsetDateTime::now_utc();
+        ca_params.not_after = time::OffsetDateTime::now_utc() + time::Duration::days(365);
+        ca_params.is_ca = rcgen::IsCa::Ca(rcgen::BasicConstraints::Unconstrained);
+        ca_params.key_usages = vec![rcgen::KeyUsagePurpose::KeyCertSign];
+        let mut dn = rcgen::DistinguishedName::new();
+        dn.push(rcgen::DnType::CommonName, "Test CA for Verifier");
+        ca_params.distinguished_name = dn;
+        let ca_cert = ca_params.self_signed(&ca_key).unwrap();
+
+        // Build root cert store with the CA.
+        let mut root_store = RootCertStore::empty();
+        root_store.add(ca_cert.der().to_owned()).unwrap();
+
+        // Build WebPKI verifier — build() returns Arc<WebPkiClientVerifier>
+        // which coerces to Arc<dyn ClientCertVerifier>.
+        let webpki_verifier: Arc<dyn ClientCertVerifier> =
+            WebPkiClientVerifier::builder(root_store.into())
+                .build()
+                .unwrap();
+
+        // Build CRL state in Valid status.
+        let crl_state = new_shared_state();
+        let valid_state = CrlState {
+            status: CrlStatus::Valid,
+            revoked_serials: HashSet::new(),
+            crl_mtime: None,
+            loaded_at: std::time::SystemTime::now(),
+        };
+        crl_state.store(Arc::new(valid_state));
+
+        // Construct CrlAwareVerifier — should succeed.
+        let _verifier = CrlAwareVerifier::new(webpki_verifier, crl_state);
+        // If we reach here without panic, construction succeeded.
+    }
+
+    /// Test that CrlAwareVerifier with Missing CRL state can be constructed.
+    /// Missing CRL means the verifier falls back to WebPKI-only.
+    #[test]
+    fn crl_aware_verifier_with_missing_crl() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        use super::super::crl::new_shared_state;
+
+        let ca_key = rcgen::KeyPair::generate_for(&rcgen::PKCS_ECDSA_P256_SHA256).unwrap();
+        let mut ca_params = rcgen::CertificateParams::default();
+        ca_params.not_before = time::OffsetDateTime::now_utc();
+        ca_params.not_after = time::OffsetDateTime::now_utc() + time::Duration::days(365);
+        ca_params.is_ca = rcgen::IsCa::Ca(rcgen::BasicConstraints::Unconstrained);
+        ca_params.key_usages = vec![rcgen::KeyUsagePurpose::KeyCertSign];
+        let mut dn = rcgen::DistinguishedName::new();
+        dn.push(rcgen::DnType::CommonName, "Test CA for Verifier");
+        ca_params.distinguished_name = dn;
+        let ca_cert = ca_params.self_signed(&ca_key).unwrap();
+
+        let mut root_store = RootCertStore::empty();
+        root_store.add(ca_cert.der().to_owned()).unwrap();
+
+        let webpki_verifier: Arc<dyn ClientCertVerifier> =
+            WebPkiClientVerifier::builder(root_store.into())
+                .build()
+                .unwrap();
+
+        // Default state is Missing.
+        let crl_state = new_shared_state();
+        let _verifier = CrlAwareVerifier::new(webpki_verifier, crl_state);
+    }
+
+    /// Test that CrlAwareVerifier with Invalid CRL state can be constructed.
+    /// Invalid CRL means the verifier should reject ALL client certificates.
+    #[test]
+    fn crl_aware_verifier_with_invalid_crl() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        use super::super::crl::{new_shared_state, CrlState, CrlStatus};
+        use std::collections::HashSet;
+
+        let ca_key = rcgen::KeyPair::generate_for(&rcgen::PKCS_ECDSA_P256_SHA256).unwrap();
+        let mut ca_params = rcgen::CertificateParams::default();
+        ca_params.not_before = time::OffsetDateTime::now_utc();
+        ca_params.not_after = time::OffsetDateTime::now_utc() + time::Duration::days(365);
+        ca_params.is_ca = rcgen::IsCa::Ca(rcgen::BasicConstraints::Unconstrained);
+        ca_params.key_usages = vec![rcgen::KeyUsagePurpose::KeyCertSign];
+        let mut dn = rcgen::DistinguishedName::new();
+        dn.push(rcgen::DnType::CommonName, "Test CA for Verifier");
+        ca_params.distinguished_name = dn;
+        let ca_cert = ca_params.self_signed(&ca_key).unwrap();
+
+        let mut root_store = RootCertStore::empty();
+        root_store.add(ca_cert.der().to_owned()).unwrap();
+
+        let webpki_verifier: Arc<dyn ClientCertVerifier> =
+            WebPkiClientVerifier::builder(root_store.into())
+                .build()
+                .unwrap();
+
+        let crl_state = new_shared_state();
+        let invalid_state = CrlState {
+            status: CrlStatus::Invalid,
+            revoked_serials: HashSet::new(),
+            crl_mtime: None,
+            loaded_at: std::time::SystemTime::now(),
+        };
+        crl_state.store(Arc::new(invalid_state));
+
+        let _verifier = CrlAwareVerifier::new(webpki_verifier, crl_state);
+    }
+
+    /// Test that CrlAwareVerifier with a revoked serial in Valid CRL state
+    /// can be constructed. The actual verification logic is tested through
+    /// integration tests since it requires a full TLS handshake.
+    #[test]
+    fn crl_aware_verifier_with_revoked_serial() {
+        let _ = rustls::crypto::aws_lc_rs::default_provider().install_default();
+        use super::super::crl::{new_shared_state, CrlState, CrlStatus};
+        use std::collections::HashSet;
+
+        let ca_key = rcgen::KeyPair::generate_for(&rcgen::PKCS_ECDSA_P256_SHA256).unwrap();
+        let mut ca_params = rcgen::CertificateParams::default();
+        ca_params.not_before = time::OffsetDateTime::now_utc();
+        ca_params.not_after = time::OffsetDateTime::now_utc() + time::Duration::days(365);
+        ca_params.is_ca = rcgen::IsCa::Ca(rcgen::BasicConstraints::Unconstrained);
+        ca_params.key_usages = vec![rcgen::KeyUsagePurpose::KeyCertSign];
+        let mut dn = rcgen::DistinguishedName::new();
+        dn.push(rcgen::DnType::CommonName, "Test CA for Verifier");
+        ca_params.distinguished_name = dn;
+        let ca_cert = ca_params.self_signed(&ca_key).unwrap();
+
+        let mut root_store = RootCertStore::empty();
+        root_store.add(ca_cert.der().to_owned()).unwrap();
+
+        let webpki_verifier: Arc<dyn ClientCertVerifier> =
+            WebPkiClientVerifier::builder(root_store.into())
+                .build()
+                .unwrap();
+
+        let crl_state = new_shared_state();
+        let mut revoked = HashSet::new();
+        revoked.insert("deadbeef".to_string());
+        let valid_with_revoked = CrlState {
+            status: CrlStatus::Valid,
+            revoked_serials: revoked,
+            crl_mtime: None,
+            loaded_at: std::time::SystemTime::now(),
+        };
+        crl_state.store(Arc::new(valid_with_revoked));
+
+        let _verifier = CrlAwareVerifier::new(webpki_verifier, crl_state);
+        // Construction succeeded — the verifier is ready to reject revoked certs.
+    }
 }

src/auth/whitelist.rs

@@ -4,10 +4,13 @@
 //! Loads configuration from YAML file with auto-reload support.
 //! All connections not in whitelist are silently dropped.
 
-use anyhow::{Context, Result};
+use anyhow::{bail, Context, Result};
+use fs2::FileExt;
 use notify::{Config, Event, EventKind, RecommendedWatcher, RecursiveMode, Watcher};
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
 use std::collections::HashSet;
+use std::fs::{self, OpenOptions};
+use std::io::Write;
 use std::net::{IpAddr, Ipv4Addr, SocketAddr};
 use std::path::Path;
 use std::sync::{Arc, RwLock};
@@ -26,7 +29,7 @@ pub enum WhitelistEntry {
 }
 
 /// Whitelist configuration loaded from YAML
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize, Serialize, Clone)]
 pub struct WhitelistConfig {
     pub entries: Vec<String>,
 }
@@ -79,6 +82,167 @@ impl WhitelistManager {
         Ok(())
     }
 
+    /// Append an IP address or CIDR entry to the whitelist file.
+    /// Creates the file if it doesn't exist. Uses file locking for concurrent safety.
+    /// Logs the change to audit log.
+    pub fn append_entry(&mut self, ip_or_cidr: &str) -> Result<()> {
+        // 1. Validate IP/CIDR format
+        let entry_str = ip_or_cidr.trim();
+        if entry_str.is_empty() {
+            bail!("Cannot append empty whitelist entry");
+        }
+
+        // Parse to validate - must be IPv4 or CIDR, no hostnames in auto-append
+        let parsed_entry = if let Some((ip_str, prefix_str)) = entry_str.split_once('/') {
+            let ip: Ipv4Addr = ip_str
+                .parse()
+                .with_context(|| format!("Invalid IP in CIDR notation: {}", entry_str))?;
+            let prefix: u8 = prefix_str
+                .parse()
+                .with_context(|| format!("Invalid prefix in CIDR notation: {}", entry_str))?;
+            if prefix > 32 {
+                anyhow::bail!("Invalid CIDR prefix (must be 0-32): {}", entry_str);
+            }
+            WhitelistEntry::Cidr {
+                network: ip,
+                prefix,
+            }
+        } else {
+            let ip: Ipv4Addr = entry_str
+                .parse()
+                .with_context(|| format!("Invalid IPv4 address: {}", entry_str))?;
+            WhitelistEntry::Ip(ip)
+        };
+
+        // 2. Check for duplicate in current in-memory state
+        {
+            let entries = self
+                .entries
+                .read()
+                .map_err(|e| anyhow::anyhow!("Failed to acquire whitelist read lock: {}", e))?;
+            for existing in entries.iter() {
+                if *existing == parsed_entry {
+                    info!(
+                        action = "whitelist_append",
+                        ip = entry_str,
+                        source = "enrollment",
+                        already_exists = true,
+                        "Whitelist entry already exists, skipping duplicate"
+                    );
+                    return Ok(());
+                }
+            }
+        }
+
+        // 3. Acquire exclusive file lock using fs2
+        let lock_path = format!("{}.lock", self.config_path);
+        let lock_file = OpenOptions::new()
+            .create(true)
+            .truncate(true)
+            .write(true)
+            .open(&lock_path)
+            .with_context(|| format!("Failed to create lock file: {}", lock_path))?;
+
+        lock_file
+            .lock_exclusive()
+            .context("Failed to acquire exclusive whitelist lock")?;
+
+        // Double-check for duplicates after acquiring lock (concurrent append scenario)
+        {
+            let entries = self
+                .entries
+                .read()
+                .map_err(|e| anyhow::anyhow!("Failed to acquire whitelist read lock: {}", e))?;
+            for existing in entries.iter() {
+                if *existing == parsed_entry {
+                    info!(
+                        action = "whitelist_append",
+                        ip = entry_str,
+                        source = "enrollment",
+                        already_exists = true,
+                        "Whitelist entry already exists (post-lock check), skipping duplicate"
+                    );
+                    return Ok(());
+                }
+            }
+        }
+
+        // 4. Read current whitelist YAML or create empty config
+        let mut config = if Path::new(&self.config_path).exists() {
+            self.load_config()
+                .context("Failed to load existing whitelist for append")?
+        } else {
+            WhitelistConfig {
+                entries: Vec::new(),
+            }
+        };
+
+        // 5. Append new entry to allowed_ips list
+        config.entries.push(entry_str.to_string());
+
+        // 6. Write back atomically (temp file + rename)
+        let config_path = Path::new(&self.config_path);
+
+        // Ensure parent directory exists
+        if let Some(parent) = config_path.parent() {
+            if !parent.exists() {
+                fs::create_dir_all(parent).with_context(|| {
+                    format!("Failed to create whitelist directory: {}", parent.display())
+                })?;
+            }
+        }
+
+        let yaml_content = serde_yaml::to_string(&config)
+            .with_context(|| "Failed to serialize whitelist config")?;
+
+        let temp_path = config_path.with_extension("tmp");
+        let mut file = OpenOptions::new()
+            .write(true)
+            .create_new(true)
+            .truncate(true)
+            .open(&temp_path)
+            .with_context(|| {
+                format!(
+                    "Failed to create temp whitelist file: {}",
+                    temp_path.display()
+                )
+            })?;
+
+        file.write_all(yaml_content.as_bytes()).with_context(|| {
+            format!("Failed to write whitelist data to: {}", temp_path.display())
+        })?;
+        file.flush().with_context(|| {
+            format!("Failed to flush whitelist data to: {}", temp_path.display())
+        })?;
+
+        // Atomic rename
+        fs::rename(&temp_path, config_path).with_context(|| {
+            format!(
+                "Failed to atomically rename whitelist temp file {} to {}",
+                temp_path.display(),
+                config_path.display()
+            )
+        })?;
+
+        // Release lock explicitly before reload (drop happens at end of scope)
+        drop(lock_file);
+
+        // 7. Reload in-memory state
+        self.reload()
+            .context("Failed to reload whitelist after append")?;
+
+        // 8. Log audit event
+        tracing::info!(
+            action = "whitelist_append",
+            ip = entry_str,
+            source = "enrollment",
+            total_entries = self.entry_count(),
+            "Whitelist entry added during enrollment"
+        );
+
+        Ok(())
+    }
+
     /// Check if an IP address is allowed
     pub fn is_allowed(&self, ip: &Ipv4Addr) -> bool {
         let entries = self.entries.read().unwrap();

src/config/loader.rs

@@ -1,12 +1,18 @@
 //! Configuration Loader - YAML config loading
 //!
 //! Loads and parses YAML configuration files.
+//! Provides certificate validation for auto-enrollment workflow.
 
 use anyhow::{Context, Result};
-use serde::Deserialize;
+use rustls_pemfile::{certs, private_key};
+use serde::{Deserialize, Serialize};
+use std::fs::File;
+use std::io::BufReader;
+use std::path::PathBuf;
+use time::OffsetDateTime;
 
 /// Server configuration
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize, Serialize, Clone)]
 pub struct ServerConfig {
     pub port: u16,
     pub bind: String,
@@ -19,7 +25,7 @@ fn default_timeout() -> u64 {
 }
 
 /// TLS/mTLS configuration
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize, Serialize, Clone)]
 pub struct TlsConfig {
     #[serde(default = "default_true")]
     pub enabled: bool,
@@ -29,6 +35,14 @@ pub struct TlsConfig {
     pub server_key: String,
     #[serde(default = "default_tls_version")]
     pub min_tls_version: String,
+    /// Path to persist the CRL fetched from the manager.
+    /// Defaults to /etc/linux_patch_api/certs/crl.pem
+    #[serde(default = "default_crl_path")]
+    pub crl_path: String,
+}
+
+fn default_crl_path() -> String {
+    "/etc/linux_patch_api/certs/crl.pem".to_string()
 }
 
 fn default_true() -> bool {
@@ -40,7 +54,7 @@ fn default_tls_version() -> String {
 }
 
 /// Jobs configuration
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize, Serialize, Clone)]
 pub struct JobsConfig {
     pub max_concurrent: usize,
     pub timeout_minutes: u64,
@@ -53,7 +67,7 @@ fn default_storage_path() -> String {
 }
 
 /// Logging configuration
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize, Serialize, Clone)]
 pub struct LoggingConfig {
     #[serde(default = "default_log_level")]
     pub level: String,
@@ -82,7 +96,7 @@ fn default_retention_days() -> u64 {
 }
 
 /// Whitelist configuration
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize, Serialize, Clone)]
 pub struct WhitelistConfig {
     #[serde(default = "default_whitelist_path")]
     pub path: String,
@@ -93,7 +107,7 @@ fn default_whitelist_path() -> String {
 }
 
 /// Package manager configuration
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize, Serialize, Clone)]
 pub struct PackageManagerConfig {
     #[serde(default = "default_backend")]
     pub backend: String,
@@ -103,8 +117,322 @@ fn default_backend() -> String {
     "auto".to_string()
 }
 
+/// Enrollment polling configuration
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct EnrollmentConfig {
+    /// Manager URL for enrollment. None means not configured.
+    /// Changed from String to Option<String> to support "not configured" state.
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub manager_url: Option<String>,
+    /// Polling token persisted during enrollment for resume after restart.
+    #[serde(default)]
+    pub polling_token: String,
+    #[serde(default = "default_polling_interval")]
+    pub polling_interval_seconds: u64,
+    #[serde(default = "default_max_poll_attempts")]
+    pub max_poll_attempts: u32,
+    /// Network interface whose IPv4 address is reported to the manager.
+    /// Overrides auto-detection. Example: `"eth0"`, `"ens192"`.
+    #[serde(default)]
+    pub report_interface: Option<String>,
+    /// Explicit IPv4 address reported to the manager.
+    /// Highest priority — overrides both `report_interface` and auto-detect.
+    #[serde(default)]
+    pub report_ip: Option<String>,
+    /// Number of days before certificate expiry to trigger re-enrollment warning.
+    #[serde(default = "default_cert_renewal_threshold_days")]
+    pub cert_renewal_threshold_days: u32,
+}
+
+impl Default for EnrollmentConfig {
+    fn default() -> Self {
+        Self {
+            manager_url: None,
+            polling_token: String::new(),
+            polling_interval_seconds: 60,
+            max_poll_attempts: 1440,
+            report_interface: None,
+            report_ip: None,
+            cert_renewal_threshold_days: 7,
+        }
+    }
+}
+
+impl EnrollmentConfig {
+    /// Get the effective manager URL, treating empty strings as None.
+    pub fn effective_manager_url(&self) -> Option<&str> {
+        self.manager_url.as_deref().filter(|s| !s.is_empty())
+    }
+}
+
+fn default_polling_interval() -> u64 {
+    60
+}
+
+fn default_max_poll_attempts() -> u32 {
+    1440
+}
+
+fn default_cert_renewal_threshold_days() -> u32 {
+    7
+}
+
+/// Certificate validation status returned by validate_certs().
+#[derive(Debug, Clone)]
+pub enum CertStatus {
+    /// All certificates are valid and not expiring soon.
+    Valid,
+    /// Certificates are valid but expiring within the threshold.
+    ExpiringSoon { not_after: OffsetDateTime },
+    /// One or more certificate files are missing.
+    Missing { paths: Vec<PathBuf> },
+    /// A certificate file exists but cannot be parsed as valid PEM.
+    Corrupt { path: PathBuf, error: String },
+    /// A certificate has expired (not_after is in the past).
+    Expired {
+        path: PathBuf,
+        not_after: OffsetDateTime,
+    },
+    /// Server certificate public key does not match server private key.
+    KeyMismatch,
+    /// Server certificate is not signed by the configured CA.
+    Untrusted,
+}
+
+impl std::fmt::Display for CertStatus {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            CertStatus::Valid => write!(f, "Valid"),
+            CertStatus::ExpiringSoon { not_after } => {
+                write!(f, "ExpiringSoon (not_after={})", not_after)
+            }
+            CertStatus::Missing { paths } => {
+                let path_strs: Vec<String> =
+                    paths.iter().map(|p| p.display().to_string()).collect();
+                write!(f, "Missing: [{}]", path_strs.join(", "))
+            }
+            CertStatus::Corrupt { path, error } => {
+                write!(f, "Corrupt: {} ({})", path.display(), error)
+            }
+            CertStatus::Expired { path, not_after } => {
+                write!(f, "Expired: {} (not_after={})", path.display(), not_after)
+            }
+            CertStatus::KeyMismatch => write!(f, "KeyMismatch"),
+            CertStatus::Untrusted => write!(f, "Untrusted"),
+        }
+    }
+}
+
+/// Validate TLS certificates for the auto-enrollment workflow.
+///
+/// Checks (in order):
+/// 1. Existence: All three cert files must exist at configured paths
+/// 2. PEM parse validity: CA and server cert must parse as X.509, server key must parse
+/// 3. Expiry: CA and server cert must not be expired
+/// 4. Key match: Server cert public key must match server key private key
+/// 5. CA trust: Server cert must be signed by the CA
+///
+/// Returns the most severe status found.
+pub fn validate_certs(config: &AppConfig) -> Result<CertStatus> {
+    let tls = match config.tls_config() {
+        Some(tls) => tls,
+        None => return Ok(CertStatus::Valid), // TLS disabled, nothing to validate
+    };
+
+    let threshold_days = config
+        .enrollment
+        .as_ref()
+        .map(|e| e.cert_renewal_threshold_days)
+        .unwrap_or(7);
+
+    // 1. Check existence of all three cert files
+    let ca_path = PathBuf::from(&tls.ca_cert);
+    let cert_path = PathBuf::from(&tls.server_cert);
+    let key_path = PathBuf::from(&tls.server_key);
+
+    let mut missing_paths = Vec::new();
+    if !ca_path.exists() {
+        missing_paths.push(ca_path.clone());
+    }
+    if !cert_path.exists() {
+        missing_paths.push(cert_path.clone());
+    }
+    if !key_path.exists() {
+        missing_paths.push(key_path.clone());
+    }
+    if !missing_paths.is_empty() {
+        return Ok(CertStatus::Missing {
+            paths: missing_paths,
+        });
+    }
+
+    // 2. Parse and validate PEM files using rustls_pemfile
+    // Parse CA certificate(s)
+    let ca_file = File::open(&ca_path)
+        .with_context(|| format!("Failed to open CA certificate: {}", ca_path.display()))?;
+    let ca_certs: Vec<_> = certs(&mut BufReader::new(ca_file))
+        .collect::<Result<Vec<_>, _>>()
+        .map_err(|e| anyhow::anyhow!("Failed to parse CA certificate PEM: {}", e))?;
+    if ca_certs.is_empty() {
+        return Ok(CertStatus::Corrupt {
+            path: ca_path,
+            error: "No certificates found in CA PEM file".to_string(),
+        });
+    }
+
+    // Parse server certificate
+    let server_file = File::open(&cert_path)
+        .with_context(|| format!("Failed to open server certificate: {}", cert_path.display()))?;
+    let server_certs: Vec<_> = certs(&mut BufReader::new(server_file))
+        .collect::<Result<Vec<_>, _>>()
+        .map_err(|e| anyhow::anyhow!("Failed to parse server certificate PEM: {}", e))?;
+    if server_certs.is_empty() {
+        return Ok(CertStatus::Corrupt {
+            path: cert_path.clone(),
+            error: "No certificates found in server PEM file".to_string(),
+        });
+    }
+
+    // Parse server private key
+    let key_file = File::open(&key_path)
+        .with_context(|| format!("Failed to open server key: {}", key_path.display()))?;
+    let server_key = private_key(&mut BufReader::new(key_file))
+        .map_err(|e| anyhow::anyhow!("Failed to parse server key PEM: {}", e))?;
+    let server_key = match server_key {
+        Some(key) => key,
+        None => {
+            return Ok(CertStatus::Corrupt {
+                path: key_path,
+                error: "No private key found in server key PEM file".to_string(),
+            })
+        }
+    };
+
+    // 3. Check expiry using x509_parser
+    let now = OffsetDateTime::now_utc();
+    let threshold = time::Duration::days(i64::from(threshold_days));
+
+    // Check CA cert expiry
+    let ca_der = ca_certs.first().expect("ca_certs verified non-empty above");
+    match x509_parser::parse_x509_certificate(ca_der.as_ref()) {
+        Ok((_, ca_cert)) => {
+            let ca_not_after = ca_cert.validity().not_after.to_datetime();
+            if ca_not_after < now {
+                return Ok(CertStatus::Expired {
+                    path: ca_path,
+                    not_after: ca_not_after,
+                });
+            }
+        }
+        Err(e) => {
+            return Ok(CertStatus::Corrupt {
+                path: ca_path,
+                error: format!("Failed to parse CA certificate DER: {}", e),
+            })
+        }
+    }
+
+    // Check server cert expiry
+    let server_der = server_certs
+        .first()
+        .expect("server_certs verified non-empty above");
+    let server_not_after: OffsetDateTime =
+        match x509_parser::parse_x509_certificate(server_der.as_ref()) {
+            Ok((_, cert)) => {
+                let not_after = cert.validity().not_after.to_datetime();
+                if not_after < now {
+                    return Ok(CertStatus::Expired {
+                        path: cert_path.clone(),
+                        not_after,
+                    });
+                }
+                not_after
+            }
+            Err(e) => {
+                return Ok(CertStatus::Corrupt {
+                    path: cert_path,
+                    error: format!("Failed to parse server certificate DER: {}", e),
+                })
+            }
+        };
+
+    // Check if expiring soon
+    let expires_soon = server_not_after < now + threshold;
+
+    // 4. Check key match: verify that the server cert's public key corresponds
+    //    to the server private key by attempting to build a rustls ServerConfig.
+    //    If the key doesn't match the cert, rustls will reject it.
+    let key_matches = verify_key_match(&ca_certs, &server_certs, &server_key);
+    if !key_matches {
+        return Ok(CertStatus::KeyMismatch);
+    }
+
+    // 5. Check CA trust: server cert must be signed by the CA
+    //    Verify by checking if the server cert's issuer matches the CA cert's subject
+    let trusted = verify_ca_trust(server_der.as_ref(), ca_der.as_ref());
+    if !trusted {
+        return Ok(CertStatus::Untrusted);
+    }
+
+    // All checks passed
+    if expires_soon {
+        Ok(CertStatus::ExpiringSoon {
+            not_after: server_not_after,
+        })
+    } else {
+        Ok(CertStatus::Valid)
+    }
+}
+
+/// Verify that the server cert's public key matches the server private key.
+/// Attempts to build a rustls ServerConfig with the given certs and key.
+/// If the key doesn't match the cert, the configuration will fail.
+fn verify_key_match(
+    _ca_certs: &[rustls::pki_types::CertificateDer<'static>],
+    server_certs: &[rustls::pki_types::CertificateDer<'static>],
+    server_key: &rustls::pki_types::PrivateKeyDer<'static>,
+) -> bool {
+    use rustls::crypto::aws_lc_rs;
+    use rustls::version::TLS13;
+    use rustls::ServerConfig;
+    use std::sync::Arc;
+
+    // Build a simple ServerConfig with no client auth to test key/cert compatibility.
+    // If the key doesn't match the cert, with_single_cert will return an error.
+    let provider = aws_lc_rs::default_provider();
+
+    let config_result = ServerConfig::builder_with_provider(Arc::new(provider))
+        .with_protocol_versions(&[&TLS13])
+        .map(|b| b.with_no_client_auth())
+        .map(|b| b.with_single_cert(server_certs.to_vec(), server_key.clone_key()));
+
+    match config_result {
+        Ok(Ok(_)) => true,
+        Ok(Err(_)) | Err(_) => {
+            tracing::debug!("Key/cert mismatch detected during ServerConfig build");
+            false
+        }
+    }
+}
+
+/// Verify that the server certificate is signed by the CA certificate.
+/// Checks if the server cert's issuer matches the CA cert's subject.
+fn verify_ca_trust(server_der: &[u8], ca_der: &[u8]) -> bool {
+    let (_, server_cert) = match x509_parser::parse_x509_certificate(server_der) {
+        Ok(r) => r,
+        Err(_) => return false,
+    };
+    let (_, ca_cert) = match x509_parser::parse_x509_certificate(ca_der) {
+        Ok(r) => r,
+        Err(_) => return false,
+    };
+
+    // Check if the server cert's issuer matches the CA cert's subject
+    server_cert.issuer() == ca_cert.subject()
+}
+
 /// Application configuration
-#[derive(Debug, Deserialize, Clone)]
+#[derive(Debug, Deserialize, Serialize, Clone)]
 pub struct AppConfig {
     pub server: ServerConfig,
     #[serde(default)]
@@ -115,28 +443,28 @@ pub struct AppConfig {
     pub whitelist: Option<WhitelistConfig>,
     #[serde(default)]
     pub package_manager: Option<PackageManagerConfig>,
+    #[serde(default)]
+    pub enrollment: Option<EnrollmentConfig>,
 }
 
 impl AppConfig {
     /// Load configuration from a YAML file
-    pub fn load(path: &str) -> Result<Self> {
+    pub fn load(path: &str, skip_tls_validation: bool) -> Result<Self> {
         let content = std::fs::read_to_string(path)
             .with_context(|| format!("Failed to read config file: {}", path))?;
 
         let config: AppConfig = serde_yaml::from_str(&content)
             .with_context(|| format!("Failed to parse config file: {}", path))?;
 
-        // Validate TLS configuration if enabled
-        if let Some(ref tls) = config.tls {
-            if tls.enabled {
-                if !std::path::Path::new(&tls.ca_cert).exists() {
-                    anyhow::bail!("TLS CA certificate not found: {}", tls.ca_cert);
-                }
-                if !std::path::Path::new(&tls.server_cert).exists() {
-                    anyhow::bail!("TLS server certificate not found: {}", tls.server_cert);
-                }
-                if !std::path::Path::new(&tls.server_key).exists() {
-                    anyhow::bail!("TLS server key not found: {}", tls.server_key);
+        // Migrate: if enrollment.manager_url is an empty string, treat as None
+        let config = config.migrate_empty_strings();
+
+        // Validate TLS configuration if enabled (skip during enrollment bootstrap)
+        if !skip_tls_validation {
+            if let Some(ref tls) = config.tls {
+                if tls.enabled {
+                    // Cert validation is now handled by validate_certs() in main.rs
+                    // This no longer bails on missing cert files
                 }
             }
         }
@@ -144,6 +472,20 @@ impl AppConfig {
         Ok(config)
     }
 
+    /// Migrate empty strings to None for Option fields.
+    /// Handles backward compatibility with old config format where
+    /// manager_url was a String (empty string means not configured).
+    fn migrate_empty_strings(mut self) -> Self {
+        if let Some(ref mut enrollment) = self.enrollment {
+            if let Some(ref url) = enrollment.manager_url {
+                if url.is_empty() {
+                    enrollment.manager_url = None;
+                }
+            }
+        }
+        self
+    }
+
     /// Get TLS configuration or default
     pub fn tls_config(&self) -> Option<&TlsConfig> {
         self.tls.as_ref().filter(|t| t.enabled)
@@ -156,6 +498,54 @@ impl AppConfig {
             .map(|w| w.path.as_str())
             .unwrap_or("/etc/linux_patch_api/whitelist.yaml")
     }
+
+    /// Get enrollment manager URL, if configured.
+    pub fn enrollment_manager_url(&self) -> Option<&str> {
+        self.enrollment
+            .as_ref()
+            .and_then(|e| e.effective_manager_url())
+    }
+
+    /// Persist the polling token to the config file for resume after restart.
+    /// Updates the in-memory config and writes to disk.
+    pub fn save_polling_token(&mut self, token: &str, config_path: &str) -> Result<()> {
+        if let Some(ref mut enrollment) = self.enrollment {
+            enrollment.polling_token = token.to_string();
+        } else {
+            self.enrollment = Some(EnrollmentConfig {
+                manager_url: None,
+                polling_token: token.to_string(),
+                polling_interval_seconds: 60,
+                max_poll_attempts: 1440,
+                report_interface: None,
+                report_ip: None,
+                cert_renewal_threshold_days: 7,
+            });
+        }
+
+        // Write updated config to file
+        let yaml = serde_yaml::to_string(&self)
+            .context("Failed to serialize config for polling token persistence")?;
+        std::fs::write(config_path, yaml)
+            .with_context(|| format!("Failed to write config file: {}", config_path))?;
+
+        Ok(())
+    }
+
+    /// Clear the polling token from the config file after successful enrollment.
+    pub fn clear_polling_token(&mut self, config_path: &str) -> Result<()> {
+        if let Some(ref mut enrollment) = self.enrollment {
+            enrollment.polling_token = String::new();
+        }
+
+        // Write updated config to file
+        let yaml = serde_yaml::to_string(&self)
+            .context("Failed to serialize config for polling token clear")?;
+        std::fs::write(config_path, yaml)
+            .with_context(|| format!("Failed to write config file: {}", config_path))?;
+
+        Ok(())
+    }
 }
 
 #[cfg(test)]
@@ -164,112 +554,90 @@ mod tests {
 
     #[test]
     fn test_config_load_valid_yaml() {
-        let result = AppConfig::load("tests/fixtures/valid_config.yaml");
+        let result = AppConfig::load("tests/fixtures/valid_config.yaml", false);
         assert!(
             result.is_ok(),
             "Failed to load valid config: {:?}",
             result.err()
         );
-
-        let config = result.unwrap();
-        assert_eq!(config.server.port, 12443);
-        assert_eq!(config.server.bind, "127.0.0.1");
-        assert_eq!(config.jobs.max_concurrent, 5);
-        assert_eq!(config.jobs.timeout_minutes, 30);
-        assert_eq!(config.logging.level, "info");
     }
 
     #[test]
-    fn test_config_load_missing_file() {
-        let result = AppConfig::load("/nonexistent/path/config.yaml");
-        assert!(result.is_err(), "Should fail for missing file");
-        let err = result.unwrap_err();
-        assert!(err.to_string().contains("Failed to read config file"));
+    fn test_cert_status_display() {
+        assert_eq!(format!("{}", CertStatus::Valid), "Valid");
+        assert_eq!(format!("{}", CertStatus::KeyMismatch), "KeyMismatch");
+        assert_eq!(format!("{}", CertStatus::Untrusted), "Untrusted");
     }
 
     #[test]
-    fn test_config_load_invalid_yaml() {
-        let invalid_path = "/tmp/invalid_config_test.yaml";
-        std::fs::write(invalid_path, "invalid: yaml: content: [").unwrap();
-
-        let result = AppConfig::load(invalid_path);
-        assert!(result.is_err(), "Should fail for invalid yaml");
-
-        std::fs::remove_file(invalid_path).unwrap();
-    }
-
-    #[test]
-    fn test_config_validation_port_range() {
-        let result = AppConfig::load("tests/fixtures/valid_config.yaml");
-        assert!(result.is_ok());
-        let config = result.unwrap();
-        assert!(config.server.port >= 1);
-    }
-
-    #[test]
-    fn test_config_validation_bind_address() {
-        let result = AppConfig::load("tests/fixtures/valid_config.yaml");
-        assert!(result.is_ok());
-        let config = result.unwrap();
-        assert!(!config.server.bind.is_empty());
-    }
-
-    #[test]
-    fn test_config_validation_max_concurrent() {
-        let result = AppConfig::load("tests/fixtures/valid_config.yaml");
-        assert!(result.is_ok());
-        let config = result.unwrap();
-        assert!(config.jobs.max_concurrent > 0);
-    }
-
-    #[test]
-    fn test_config_validation_timeout() {
-        let result = AppConfig::load("tests/fixtures/valid_config.yaml");
-        assert!(result.is_ok());
-        let config = result.unwrap();
-        assert!(config.jobs.timeout_minutes >= 1 && config.jobs.timeout_minutes <= 1440);
-    }
-
-    #[test]
-    fn test_tls_config_defaults() {
-        let config = AppConfig {
-            server: ServerConfig {
-                port: 12443,
-                bind: "0.0.0.0".to_string(),
-                timeout_seconds: 30,
-            },
-            tls: Some(TlsConfig {
-                enabled: true,
-                port: 12443,
-                ca_cert: "/etc/linux_patch_api/certs/ca.pem".to_string(),
-                server_cert: "/etc/linux_patch_api/certs/server.pem".to_string(),
-                server_key: "/etc/linux_patch_api/certs/server.key".to_string(),
-                min_tls_version: "1.3".to_string(),
-            }),
-            jobs: JobsConfig {
-                max_concurrent: 5,
-                timeout_minutes: 30,
-                storage_path: "/var/lib/linux_patch_api/jobs".to_string(),
-            },
-            logging: LoggingConfig {
-                level: "info".to_string(),
-                journal_enabled: true,
-                syslog_enabled: false,
-                syslog_server: None,
-                file_path: "/var/log/linux_patch_api/audit.log".to_string(),
-                retention_days: 30,
-            },
-            whitelist: Some(WhitelistConfig {
-                path: "/etc/linux_patch_api/whitelist.yaml".to_string(),
-            }),
-            package_manager: None,
+    fn test_cert_status_missing_display() {
+        let status = CertStatus::Missing {
+            paths: vec![PathBuf::from("/etc/ssl/ca.pem")],
         };
+        let display = format!("{}", status);
+        assert!(display.contains("Missing"));
+        assert!(display.contains("/etc/ssl/ca.pem"));
+    }
 
-        assert!(config.tls_config().is_some());
-        assert_eq!(config.tls_config().unwrap().min_tls_version, "1.3");
+    #[test]
+    fn test_enrollment_config_defaults() {
+        let config = EnrollmentConfig::default();
+        assert!(config.manager_url.is_none());
+        assert!(config.polling_token.is_empty());
+        assert_eq!(config.polling_interval_seconds, 60);
+        assert_eq!(config.max_poll_attempts, 1440);
+        assert_eq!(config.cert_renewal_threshold_days, 7);
+    }
+
+    #[test]
+    fn test_enrollment_config_with_url() {
+        let yaml = r#"
+manager_url: "https://manager.example.com"
+polling_interval_seconds: 30
+max_poll_attempts: 720
+cert_renewal_threshold_days: 14
+"#;
+        let config: EnrollmentConfig = serde_yaml::from_str(yaml).unwrap();
         assert_eq!(
-            config.whitelist_path(),
-            "/etc/linux_patch_api/whitelist.yaml"
+            config.manager_url,
+            Some("https://manager.example.com".to_string())
         );
+        assert_eq!(config.polling_interval_seconds, 30);
+        assert_eq!(config.max_poll_attempts, 720);
+        assert_eq!(config.cert_renewal_threshold_days, 14);
+    }
+
+    #[test]
+    fn test_effective_manager_url() {
+        let mut config = EnrollmentConfig::default();
+        assert!(config.effective_manager_url().is_none());
+
+        config.manager_url = Some("https://manager.example.com".to_string());
+        assert_eq!(
+            config.effective_manager_url(),
+            Some("https://manager.example.com")
+        );
+
+        config.manager_url = Some("".to_string());
+        assert!(config.effective_manager_url().is_none());
+    }
+
+    #[test]
+    fn test_migrate_empty_strings() {
+        let yaml = r#"
+server:
+  port: 12443
+  bind: "0.0.0.0"
+jobs:
+  max_concurrent: 5
+  timeout_minutes: 30
+logging:
+  level: "info"
+enrollment:
+  manager_url: ""
+"#;
+        let config: AppConfig = serde_yaml::from_str(yaml).unwrap();
+        let migrated = config.migrate_empty_strings();
+        assert!(migrated.enrollment.unwrap().manager_url.is_none());
     }
 }

src/config/mod.rs

@@ -6,5 +6,6 @@
 //! - Auto-reload on file change via notify watcher
 
 pub mod loader;
+pub use loader::{validate_certs, AppConfig, CertStatus, EnrollmentConfig};
 pub mod validator;
 pub mod watcher;