feat: add bump-version.sh script for version management
Automates version bumps across all version source files: - Cargo.toml (PRIMARY - workspace.package.version) - debian/changelog (prepend new entry) - debian/control (update Version field) - scripts/build-package.sh (update VERSION variable) - frontend/package.json (update version field) - Stale references check after bump Usage: ./scripts/bump-version.sh <new_version> <old_version>
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REQUIREMENTS.md
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REQUIREMENTS.md
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# Linux_Patch_Manager — Requirements Document
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## Document Control
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| Field | Value |
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|-------|-------|
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| Title | Linux_Patch_Manager — Requirements Document |
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| Version | 0.0.2 |
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| Status | Draft |
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| Last Updated | 2026-04-23 |
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| Related Docs | `SPEC.md`, `ARCHITECTURE.md`, `README.md` |
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### Revision History
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| Version | Date | Summary |
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|---------|------|---------|
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| 0.0.1 | 2026-04-21 | Initial draft |
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| 0.0.2 | 2026-04-23 | Aligned with SDD v0.0.3: hardware-host encryption at rest (no OS-level LUKS), Argon2id, EdDSA JWTs, Azure SSO configuration GUI, web-UI TLS cert strategy, SMTP runtime configurability |
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---
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## Project Overview
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**Title:** Linux_Patch_Manager
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**Description:** Enterprise-class, secure, web-based management interface for controlling patching and updates on Linux servers and workstations
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**Version:** 0.0.2
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**Status:** Draft
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## Functional Requirements
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### FR-01: Host Management
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- Manual host registration by FQDN or IP address (FQDN resolved to IP at add time)
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- On-demand auto-discovery targeting a CIDR subnet range (scans for Linux Patch API agents on port 12443)
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- Host metadata tracked: hostname, IP, OS, kernel, agent version, last seen, health status
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- Static group-based organization with many-to-many relationships (hosts can belong to multiple groups)
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- Ungrouped hosts can be managed by any operator or admin
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- Host removal with audit logging
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### FR-02: Patch Monitoring
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- Scheduled background polling: 5-minute intervals for health checks, 30-minute intervals for patch data
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- On-demand refresh triggered by operator/admin from the UI
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- Visual dashboard alerts for unhealthy or unreachable agents (red/yellow status indicators)
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- CVE severity, patch priority, and reboot requirement display per host
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### FR-03: Patch Deployment
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- Patches queue for the next available maintenance window by default
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- Immediate-apply override option for urgent patches
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- No approval gate required — operator/admin triggers deployment directly
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- Auto-retry failed patch jobs once if still within the maintenance window, then surface failure prominently
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- Batch operations across multiple hosts with partial failure handling (auto-retry once, then report failures)
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- Rollback support via upstream Linux Patch API rollback endpoint
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### FR-04: Scheduling
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- Maintenance windows are per-device (not per-group)
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- Recurring schedules: daily, weekly, or monthly
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- One-time maintenance windows
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- Patch operations execute automatically when a maintenance window opens
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### FR-05: Reporting
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- Compliance report: percentage of hosts fully patched, by group or fleet-wide
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- Patch history: log of all patch operations per host or per group
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- Vulnerability exposure: hosts with known CVEs pending patches
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- Audit trail: who did what, when (user actions, patch operations)
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- Charts and graphs required in PDF exports (compliance trends, patch-status distributions)
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- Export formats: CSV and PDF
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### FR-06: User Management
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- **Admin role**: Full access to manage all aspects of Linux Patch Manager
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- **Operator role**: Can add/remove clients, manage schedules and patches only for devices in their group memberships
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- Operators can belong to multiple groups
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- Local accounts with MFA required (TOTP or WebAuthn)
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- Azure SSO integration (optional, with Azure's built-in MFA)
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- Group membership management for users and hosts
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### FR-07: System Configuration
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- Azure SSO configuration GUI in the Settings page (tenant ID, client ID, client secret, redirect URI, scopes)
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- "Test connection" action in the Azure SSO config GUI that performs a round-trip against Azure AD and reports success/failure without enabling SSO
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- SMTP configuration GUI (host, port, auth mode, username/password, TLS mode, from-address); disabled by default
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- "Send test email" action in the SMTP config GUI
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- Polling-interval tuning (health and patch pollers)
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- Web UI TLS certificate strategy selection: self-signed from the internal CA (default) or operator-supplied certificate/key (e.g., existing infrastructure wildcard)
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## Non-Functional Requirements
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### NFR-01: Security
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- Combination authentication: local accounts + Azure SSO
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- MFA required for all users (TOTP or WebAuthn; Azure MFA for SSO users)
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- Password hashing: **Argon2id**
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- Session management: short-lived JWT access tokens (15 min, signed with **EdDSA / Ed25519**) + server-side opaque refresh tokens (1-hour inactivity timeout, rotated on use, revocable)
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- JWT signing key rotation every 90 days with a 24-hour overlap window for in-flight tokens
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- mTLS for all agent communication (certificate-based, **TLS 1.3 only**)
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- HTTPS enforced for web UI (TLS 1.3 only)
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- Internal CA managed by Patch Manager for mTLS certificate issuance and renewal
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- Certificate distribution to managed clients is manual (server administrators responsible)
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- RBAC with group-scoped access control
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- IP whitelist enforcement on all connection points
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### NFR-02: Performance
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- Support 500 typical managed hosts, up to 2,500
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- Dashboard load time under 5 seconds for full fleet view
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- Background polling must not degrade UI responsiveness
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- Concurrent batch operations (e.g., patch 500 hosts simultaneously) must not overwhelm the system
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- Login latency budget: 250–500 ms on target hardware (Intel Xeon, 4 cores, 16 GB RAM); Argon2id parameters calibrated to land in this window
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- CIDR auto-discovery of a `/22` network (~1,024 hosts) across sites completes within 10 seconds wall-clock
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### NFR-03: Scalability
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- Single-instance design on bare metal/VM (Ubuntu 24.04)
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- Manual horizontal scaling by dividing clients between multiple Patch Manager hosts if needed
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- No automatic clustering or load balancing required
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### NFR-04: Reliability
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- Agent communication failures: retry with exponential backoff (3 retries, max 30 minutes between retries)
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- Patch job failures: auto-retry once within maintenance window, then surface to operators
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- Batch partial failures: auto-retry once, then report remaining failures to operator
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- Continue processing healthy hosts regardless of individual host failures
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### NFR-05: Usability
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- 11-page web UI (React + TypeScript SPA)
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- Responsive design for desktop/laptop screens
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- Dark mode support
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- Certificate download links integrated into dashboard (root CA) and host detail (host-specific mTLS)
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- Long-running scans (CIDR discovery, full-fleet operations) must display progress and offer a cancel action
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## Interface Requirements
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### IR-01: Web Interface
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- React + TypeScript SPA served by Axum backend
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- Real-time job status via WebSocket relay (agent WebSocket → Patch Manager → browser)
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- RESTful API backend for all UI operations
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- Certificate download endpoints for root CA and host-specific mTLS certs
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- Unauthenticated liveness endpoint at `/status/health` (minimal: process up, DB reachable, worker heartbeat fresh)
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- Authenticated fleet-aggregate endpoint at `/api/v1/status/fleet` (counts of healthy / degraded / unreachable agents)
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### IR-02: Linux Patch API Integration
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- All managed device communication via Linux Patch API (upstream agent)
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- mTLS client certificate authentication to each agent
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- Base path: `/api/v1/`, Port: 12443, TLS 1.3 only
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- Sync operations: GET endpoints (packages, patches, system info, health)
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- Async operations: POST/PUT/DELETE endpoints (install, update, remove, patch apply, reboot)
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- Job status tracking via `GET /api/v1/jobs/{id}` and WebSocket `/api/v1/ws/jobs`
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- Rollback via `POST /api/v1/jobs/{id}/rollback`
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## Data Requirements
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- **Database:** PostgreSQL 16+
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- **Operational data retention:** 30 days (host patch history, job history, health history)
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- **Audit log retention:** 6 months
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- **Data storage:** All data on Patch Manager host
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## Compliance Requirements
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### HIPAA (Health Insurance Portability and Accountability Act)
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- **Audit Controls (§164.312(b)):** Comprehensive audit logging of all system activity (hash-chained rows for integrity)
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- **Access Controls (§164.312(a)(1)):** RBAC with group-scoped access, unique user identification, MFA enforcement
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- **Integrity Controls (§164.312(c)(1)):** Audit log integrity protection via hash chaining
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- **Transmission Security (§164.312(e)(1)):** mTLS for all agent communication, HTTPS for web UI, TLS 1.3 minimum
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- **Encryption at Rest:** Provided by the underlying hardware host (infrastructure-level full-disk encryption). The application does not manage disk encryption.
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- **Automatic Logoff (§164.312(a)(2)(iii)):** 1-hour inactivity session timeout
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### PCI-DSS (Payment Card Industry Data Security Standard)
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- **Requirement 3:** Protect stored data — encryption at rest provided by the hardware host
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- **Requirement 4:** Encrypt transmission — mTLS (TLS 1.3) for agent communication, HTTPS (TLS 1.3) for web UI
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- **Requirement 6:** Vulnerability management — patch management is the core function; system tracks and enforces timely patching
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- **Requirement 7:** Restrict access to need-to-know — RBAC with group-scoped operator access
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- **Requirement 8:** Identify and authenticate users — MFA required, unique IDs, session timeouts
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- **Requirement 10:** Track and monitor all access — comprehensive audit logging with 6-month retention
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## Audit Logging
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**Captured Events:**
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- All user login/logout events (success and failure)
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- All patch operations (who triggered, which hosts, what patches, queue vs. immediate)
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- All host registration/removal events
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- All group membership changes (hosts and users)
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- All certificate operations (issue, renew, download, revoke)
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- All maintenance window changes
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- All configuration changes (including Azure SSO and SMTP configuration)
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**Integrity:** Tamper-evident via hash-chained rows (`prev_hash`, `row_hash`). Periodic and on-demand integrity verification.
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**Retention:** 6 months
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## Constraints
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- Single bare metal/VM host running Ubuntu 24.04
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- Systemd service management
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- Internal network only (no public internet exposure)
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- Rust/Axum backend, React/TypeScript frontend, PostgreSQL 16+ database
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- No direct permissions on managed clients
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- Certificate distribution to clients is manual
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- Encryption at rest is provided by the hardware host; the application does not configure or manage disk encryption
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