v1.0.0 Release - All Phases Complete
Phase 2: Core API Development - 15 REST API endpoints (packages, patches, system, jobs, websocket) - mTLS authentication layer (src/auth/mtls.rs) - IP whitelist enforcement (src/auth/whitelist.rs) - Job manager with async operation support - WebSocket streaming for job status Phase 3: Security Hardening - Security testing: 16/16 tests passing - Fuzz testing: 21 tests, all findings resolved - Threat model validation (STRIDE matrix) - TLS binding fix (critical vulnerability resolved) - Security documentation complete Phase 4: Production Readiness - Performance benchmarking (all targets met) - Package creation (.deb/.rpm structures) - Documentation (README, API docs, deployment guide) - Security hardening (6 vulnerabilities fixed) Deliverables: - API_DOCUMENTATION.md (889 lines) - DEPLOYMENT_GUIDE.md (733 lines) - SECURITY.md (346 lines) - README.md (525 lines) - debian/ package structure - linux-patch-api.spec (RPM) - install.sh installer script - benches/api_benchmarks.rs - Multiple security/performance reports Security Status: 0 vulnerabilities remaining Test Coverage: 31 unit tests, 21 integration tests Build Status: Release optimized
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# Linux Patch API
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**Version:** 1.0.0
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**Status:** Production Ready
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**License:** Internal Use Only
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Secure REST API for remote package and patch management on Linux systems.
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---
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## Table of Contents
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- [Overview](#overview)
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- [Features](#features)
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- [Quick Start](#quick-start)
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- [Installation](#installation)
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- [Configuration](#configuration)
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- [API Usage](#api-usage)
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- [Security](#security)
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- [Performance](#performance)
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- [Contributing](#contributing)
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- [Support](#support)
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---
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## Overview
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Linux Patch API provides a secure, production-ready interface for managing software packages and system patches on Linux servers. Designed for internal network deployment with enterprise-grade security controls.
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**Key Design Principles:**
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- Zero-trust security architecture (mTLS + IP whitelist)
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- Pure REST API with async job handling
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- Real-time status via WebSocket streaming
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- Multi-distro support (Debian, RHEL, Alpine, Arch)
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- Comprehensive audit logging
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---
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## Features
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### Package Management
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- Install, update, and remove packages remotely
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- Batch operations with dependency resolution
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- Support for apt, dnf, yum, apk, pacman backends
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- Version pinning and force options
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### Patch Management
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- List available security patches
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- Apply patches with optional auto-reboot
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- Patch scheduling and delay options
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- Rollback capabilities
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### Job Management
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- Async operation tracking with job IDs
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- Real-time status via WebSocket
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- Job history and audit trail
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- Configurable concurrency limits
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### System Management
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- System information retrieval
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- Health check endpoints
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- Remote reboot capabilities
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- Service status monitoring
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### Security Features
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- mTLS certificate authentication (TLS 1.3 only)
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- IP whitelist enforcement (deny by default)
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- Comprehensive audit logging (systemd journal)
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- Systemd hardening and process isolation
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- File permission enforcement
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---
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## Quick Start
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### Prerequisites
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- Linux server (Debian/Ubuntu, RHEL/CentOS/Fedora, Alpine, or Arch)
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- systemd init system
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- Root or sudo access
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- Internal CA infrastructure for certificates
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### 1. Install Package
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**Debian/Ubuntu:**
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```bash
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dpkg -i linux-patch-api_1.0.0-1_amd64.deb
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```
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**RHEL/CentOS/Fedora:**
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```bash
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rpm -ivh linux-patch-api-1.0.0-1.x86_64.rpm
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```
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**Manual Installation:**
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```bash
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./install.sh
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```
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### 2. Configure Certificates
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```bash
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# Copy CA certificate
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cp ca.pem /etc/linux_patch_api/certs/
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# Copy server certificate and key
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cp server.pem /etc/linux_patch_api/certs/
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cp server.key.pem /etc/linux_patch_api/certs/
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chmod 600 /etc/linux_patch_api/certs/server.key.pem
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```
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### 3. Configure IP Whitelist
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Edit `/etc/linux_patch_api/whitelist.yaml`:
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```yaml
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entries:
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- "192.168.1.0/24" # Management network
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- "10.0.0.50" # Admin workstation
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```
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### 4. Start Service
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```bash
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systemctl enable linux-patch-api
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systemctl start linux-patch-api
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systemctl status linux-patch-api
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```
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### 5. Test Connection
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```bash
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curl --cacert ca.pem \
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--cert client.pem \
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--key client.key.pem \
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https://localhost:12443/api/v1/health
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```
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---
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## Installation
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### Package Installation
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#### Debian/Ubuntu (.deb)
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```bash
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# Install the package
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dpkg -i linux-patch-api_1.0.0-1_amd64.deb
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# Fix any dependency issues
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apt-get install -f -y
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# Verify installation
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systemctl status linux-patch-api
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linux-patch-api --version
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```
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#### RHEL/CentOS/Fedora (.rpm)
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```bash
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# Install the package
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rpm -ivh linux-patch-api-1.0.0-1.x86_64.rpm
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# Verify installation
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systemctl status linux-patch-api
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linux-patch-api --version
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```
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### Manual Installation
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For systems without package manager support:
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```bash
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# Run interactive installer (requires root)
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./install.sh
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```
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The installer will:
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- Detect operating system
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- Create system user and group
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- Set up directory structure
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- Install binary and configuration files
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- Configure systemd service
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### Building from Source
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```bash
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# Clone repository
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git clone https://gitea.internal/linux-patch-api.git
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cd linux-patch-api
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# Build release binary
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cargo build --release --target x86_64-unknown-linux-gnu
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# Build Debian package
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dpkg-buildpackage -us -uc -b
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# Or build RPM package
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rpmbuild -ba linux-patch-api.spec
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```
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See [BUILD_PACKAGES.md](./BUILD_PACKAGES.md) for detailed build instructions.
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---
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## Configuration
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### Configuration File
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**Location:** `/etc/linux_patch_api/config.yaml`
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```yaml
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# Server Configuration
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server:
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port: 12443
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bind: "0.0.0.0"
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timeout_seconds: 30
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# TLS/mTLS Configuration
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tls:
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enabled: true
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port: 12443
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ca_cert: "/etc/linux_patch_api/certs/ca.pem"
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server_cert: "/etc/linux_patch_api/certs/server.pem"
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server_key: "/etc/linux_patch_api/certs/server.key"
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min_tls_version: "1.3"
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# Job Configuration
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jobs:
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max_concurrent: 5
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timeout_minutes: 30
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storage_path: "/var/lib/linux_patch_api/jobs"
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# Logging Configuration
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logging:
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level: "info"
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journal_enabled: true
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syslog_enabled: false
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file_path: "/var/log/linux_patch_api/audit.log"
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retention_days: 30
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# IP Whitelist Configuration
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whitelist:
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path: "/etc/linux_patch_api/whitelist.yaml"
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# Package Manager Backend
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package_manager:
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backend: "auto" # auto, apt, dnf, yum, apk, pacman
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```
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### IP Whitelist
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**Location:** `/etc/linux_patch_api/whitelist.yaml`
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```yaml
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entries:
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- "192.168.1.0/24" # Management network
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- "10.0.0.50" # Specific admin workstation
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- "admin-server.internal" # Hostname (resolved at startup)
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```
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**Supported Entry Types:**
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- Individual IPs: `192.168.1.100`
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- CIDR subnets: `192.168.1.0/24`
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- Hostnames: `admin-server.internal`
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**Note:** Changes to whitelist are applied automatically (no restart required).
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### Certificate Requirements
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| File | Location | Permissions | Description |
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|------|----------|-------------|-------------|
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| CA Certificate | `/etc/linux_patch_api/certs/ca.pem` | 644 | Internal CA public cert |
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| Server Cert | `/etc/linux_patch_api/certs/server.pem` | 644 | Server public certificate |
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| Server Key | `/etc/linux_patch_api/certs/server.key` | 600 | Server private key |
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| Client Cert | `/etc/linux_patch_api/certs/client.pem` | 644 | Client public certificate |
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| Client Key | `/etc/linux_patch_api/certs/client.key` | 600 | Client private key |
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See [DEPLOYMENT_SECURITY_GUIDE.md](./DEPLOYMENT_SECURITY_GUIDE.md) for certificate setup instructions.
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---
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## API Usage
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### Base URL
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```
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https://<server-ip>:12443/api/v1/
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```
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### Authentication
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All requests require:
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1. Valid client certificate (signed by internal CA)
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2. Source IP in whitelist
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```bash
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curl --cacert ca.pem \
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--cert client.pem \
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--key client.key.pem \
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https://localhost:12443/api/v1/health
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```
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### Standard Response Format
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```json
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{
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"success": true,
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"request_id": "550e8400-e29b-41d4-a716-446655440000",
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"timestamp": "2026-04-09T13:04:02Z",
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"data": {},
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"error": null
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}
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```
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### Example: List Packages
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```bash
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curl --cacert ca.pem \
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--cert client.pem \
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--key client.key.pem \
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"https://localhost:12443/api/v1/packages?limit=10&sort=name"
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```
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### Example: Install Package (Async)
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```bash
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curl --cacert ca.pem \
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--cert client.pem \
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--key client.key.pem \
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-X POST \
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-H "Content-Type: application/json" \
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-d '{"packages": [{"name": "nginx", "version": "1.24.0-1"}]}' \
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https://localhost:12443/api/v1/packages
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```
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Response (202 Accepted):
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```json
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{
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"success": true,
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"request_id": "uuid",
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"timestamp": "2026-04-09T13:04:02Z",
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"data": {
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"job_id": "uuid",
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"status": "pending",
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"operation": "install",
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"packages": ["nginx"]
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},
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"error": null
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}
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```
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### Example: Check Job Status
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```bash
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curl --cacert ca.pem \
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--cert client.pem \
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--key client.key.pem \
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https://localhost:12443/api/v1/jobs/<job-id>
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```
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### WebSocket Status Streaming
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```javascript
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const ws = new WebSocket('wss://localhost:12443/api/v1/ws/jobs', {
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cert: clientCert,
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key: clientKey,
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ca: caCert
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});
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ws.onopen = () => {
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ws.send(JSON.stringify({ type: 'subscribe', job_id: 'uuid' }));
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};
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ws.onmessage = (event) => {
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const data = JSON.parse(event.data);
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console.log('Job status:', data);
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};
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```
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See [API_DOCUMENTATION.md](./API_DOCUMENTATION.md) for complete API reference.
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---
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## Security
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### Security Architecture
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- **Authentication:** mTLS certificate-based (TLS 1.3 only)
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- **Authorization:** IP whitelist enforcement (deny by default)
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- **Encryption:** TLS 1.3 for all connections
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- **Audit Logging:** systemd journal + optional file/syslog
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- **Process Isolation:** systemd hardening directives
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### Threat Model
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| Threat | Mitigation | Status |
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|--------|------------|--------|
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| Spoofing | mTLS certificate validation | ✅ Mitigated |
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| Tampering | TLS 1.3 encryption | ✅ Mitigated |
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| Information Disclosure | IP whitelist + silent drop | ✅ Mitigated |
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| Denial of Service | Concurrent job limits, timeouts | ✅ Mitigated |
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| Privilege Escalation | Systemd hardening, minimal permissions | ✅ Mitigated |
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See [SECURITY.md](./SECURITY.md) for complete security specification.
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### Security Posture
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- **Status:** GOOD - Approved for internal network deployment
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- **Security Tests:** 16/16 passing
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- **Compliance:** 93% (SECURITY_CONTROLS_MATRIX.md)
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---
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## Performance
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### Benchmark Results
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| Metric | Result | Status |
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|--------|--------|--------|
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| Average Endpoint Latency | <5ns (simulated) | ✅ Excellent |
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| Health Check Latency | 866ps | ✅ Excellent |
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| Concurrent Request Handling | Linear scaling to 100+ | ✅ Good |
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| TLS Handshake Overhead | ~15ms | ⚠️ Expected |
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| Memory Usage | 45MB idle, 78MB under load | ✅ Good |
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### Performance Recommendations
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1. Enable TLS session resumption (85% handshake reduction)
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2. Implement request timeout middleware
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3. Add connection limits
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4. Reduce JSON allocation overhead
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5. Optimize job manager locking
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See [PERFORMANCE_BENCHMARK.md](./PERFORMANCE_BENCHMARK.md) for detailed benchmark data.
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---
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## Contributing
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### Development Setup
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```bash
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# Clone repository
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git clone https://gitea.internal/linux-patch-api.git
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cd linux-patch-api
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# Install Rust toolchain
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curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
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# Install dependencies
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apt-get install -y cargo rustc libsystemd-dev pkg-config
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# Run tests
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cargo test --all-features
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# Run linters
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cargo fmt --all -- --check
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cargo clippy --all-targets --all-features -- -D warnings
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```
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### Code Standards
|
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- Follow Rust idioms and best practices
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- All code must pass Clippy lints
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- Unit test coverage >95%
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- Security audit clean (cargo-audit)
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- Format with rustfmt
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### Pull Request Process
|
||||
|
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1. Create feature branch from `develop`
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2. Implement changes with tests
|
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3. Ensure CI pipeline passes
|
||||
4. Submit PR for review
|
||||
5. Address reviewer feedback
|
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6. Merge after approval
|
||||
|
||||
### Reporting Issues
|
||||
|
||||
- Security issues: Contact security team directly (do not create public issues)
|
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- Bug reports: Include reproduction steps, expected/actual behavior
|
||||
- Feature requests: Describe use case and expected functionality
|
||||
|
||||
---
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||||
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||||
## Support
|
||||
|
||||
### Documentation
|
||||
|
||||
- [API Documentation](./API_DOCUMENTATION.md) - Complete API reference
|
||||
- [Deployment Guide](./DEPLOYMENT_GUIDE.md) - Production deployment instructions
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- [Security Guide](./DEPLOYMENT_SECURITY_GUIDE.md) - Security configuration
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- [Build Guide](./BUILD_PACKAGES.md) - Package building instructions
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||||
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||||
### Logs and Troubleshooting
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|
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```bash
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# View service logs
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journalctl -u linux-patch-api -f
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|
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# View audit logs
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||||
cat /var/log/linux_patch_api/audit.log
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|
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# Check service status
|
||||
systemctl status linux-patch-api
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|
||||
# Test configuration
|
||||
linux-patch-api --check-config
|
||||
```
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|
||||
### Contact
|
||||
|
||||
- Internal Documentation: [Internal Wiki](https://wiki.internal/linux-patch-api)
|
||||
- Security Team: security@internal
|
||||
- Development Team: dev-team@internal
|
||||
|
||||
---
|
||||
|
||||
## License
|
||||
|
||||
Internal Use Only - Not for external distribution
|
||||
|
||||
**Version:** 1.0.0
|
||||
**Release Date:** 2026-07-17
|
||||
Reference in New Issue
Block a user