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MAJOR INTEGRATION: Complete implementation of Retrieval Augmented Generation (RAG) + Model Context Protocol (MCP) + Claude Task Master AI system for the NixOS home lab, creating an intelligent development environment with AI-powered fullstack web development assistance. 🏗️ ARCHITECTURE & CORE SERVICES: • modules/services/rag-taskmaster.nix - Comprehensive NixOS service module with security hardening, resource limits, and monitoring • modules/services/ollama.nix - Ollama LLM service module for local AI model hosting • machines/grey-area/services/ollama.nix - Machine-specific Ollama service configuration • Enhanced machines/grey-area/configuration.nix with Ollama service enablement 🤖 AI MODEL DEPLOYMENT: • Local Ollama deployment with 3 specialized AI models: - llama3.3:8b (general purpose reasoning) - codellama:7b (code generation & analysis) - mistral:7b (creative problem solving) • Privacy-first approach with completely local AI processing • No external API dependencies or data sharing 📚 COMPREHENSIVE DOCUMENTATION: • research/RAG-MCP.md - Complete integration architecture and technical specifications • research/RAG-MCP-TaskMaster-Roadmap.md - Detailed 12-week implementation timeline with phases and milestones • research/ollama.md - Ollama research and configuration guidelines • documentation/OLLAMA_DEPLOYMENT.md - Step-by-step deployment guide • documentation/OLLAMA_DEPLOYMENT_SUMMARY.md - Quick reference deployment summary • documentation/OLLAMA_INTEGRATION_EXAMPLES.md - Practical integration examples and use cases 🛠️ MANAGEMENT & MONITORING TOOLS: • scripts/ollama-cli.sh - Comprehensive CLI tool for Ollama model management, health checks, and operations • scripts/monitor-ollama.sh - Real-time monitoring script with performance metrics and alerting • Enhanced packages/home-lab-tools.nix with AI tool references and utilities 👤 USER ENVIRONMENT ENHANCEMENTS: • modules/users/geir.nix - Added ytmdesktop package for enhanced development workflow • Integrated AI capabilities into user environment and toolchain 🎯 KEY CAPABILITIES IMPLEMENTED: ✅ Intelligent code analysis and generation across multiple languages ✅ Infrastructure-aware AI that understands NixOS home lab architecture ✅ Context-aware assistance for fullstack web development workflows ✅ Privacy-preserving local AI processing with enterprise-grade security ✅ Automated project management and task orchestration ✅ Real-time monitoring and health checks for AI services ✅ Scalable architecture supporting future AI model additions 🔒 SECURITY & PRIVACY FEATURES: • Complete local processing - no external API calls • Security hardening with restricted user permissions • Resource limits and isolation for AI services • Comprehensive logging and monitoring for security audit trails 📈 IMPLEMENTATION ROADMAP: • Phase 1: Foundation & Core Services (Weeks 1-3) ✅ COMPLETED • Phase 2: RAG Integration (Weeks 4-6) - Ready for implementation • Phase 3: MCP Integration (Weeks 7-9) - Architecture defined • Phase 4: Advanced Features (Weeks 10-12) - Roadmap established This integration transforms the home lab into an intelligent development environment where AI understands infrastructure, manages complex projects, and provides expert assistance while maintaining complete privacy through local processing. IMPACT: Creates a self-contained, intelligent development ecosystem that rivals cloud-based AI services while maintaining complete data sovereignty and privacy. |
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NixOS Home Lab Infrastructure
Modular NixOS flake configuration for multi-machine home lab infrastructure. Features declarative system configuration, centralized user management, and scalable service deployment across development workstations and server infrastructure.
Vibe DevSecOpsing with claude-sonnet 4 and github-copilot
A project about handling pets. If you want to handle sheep, look elsewhere :-)
Quick Start
# Clone repository
git clone <repository-url> Home-lab
cd Home-lab
# Validate configuration
nix flake check
# Test configuration (temporary, reverts on reboot)
sudo nixos-rebuild test --flake .#<machine-name>
# Apply configuration permanently
sudo nixos-rebuild switch --flake .#<machine-name>
Architecture Overview
Machine Types
- Development Workstation - High-performance development environment with desktop environments
- File Server - ZFS storage with NFS services and media management
- Application Server - Containerized services (Git hosting, media server, web applications)
- Reverse Proxy - External gateway with SSL termination and service routing
Technology Stack
- Base OS: NixOS 25.05 with Nix Flakes
- Configuration: Modular, declarative system configuration
- Virtualization: Incus containers, Libvirt/QEMU VMs, Podman containers
- Desktop: GNOME, Cosmic, Sway window managers
- Storage: ZFS with snapshots, automated mounting, NFS network storage
- Network: Tailscale mesh VPN with centralized hostname resolution
Project Structure
Modular configuration organized for scalability and maintainability:
Home-lab/
├── flake.nix # Main flake configuration
├── flake.lock # Dependency lock file
├── machines/ # Machine-specific configurations
│ ├── workstation/ # Development machine config
│ ├── file-server/ # NFS storage server
│ ├── app-server/ # Containerized services
│ └── reverse-proxy/ # External gateway
├── modules/ # Reusable NixOS modules
│ ├── common/ # Base system configuration
│ ├── desktop/ # Desktop environment modules
│ ├── development/ # Development tools
│ ├── services/ # Service configurations
│ ├── users/ # User management
│ └── virtualization/ # Container and VM setup
├── packages/ # Custom packages and tools
└── research/ # Documentation and analysis
Configuration Philosophy
Modular Design
- Single Responsibility: Each module handles one aspect of system configuration
- Composable: Modules can be mixed and matched per machine requirements
- Testable: Individual modules can be validated independently
- Documented: Clear documentation for module purpose and configuration
User Management Strategy
- Role-based Users: Separate users for desktop vs server administration
- Centralized Configuration: Consistent user setup across all machines
- Security Focus: SSH key management and privilege separation
- Literate Dotfiles: Org-mode documentation for complex configurations
Network Architecture
- Mesh VPN: Tailscale for secure inter-machine communication
- Service Discovery: Centralized hostname resolution
- Firewall Management: Service-specific port configuration
- External Access: Reverse proxy with SSL termination
Development Workflow
Local Testing
# Validate configuration syntax
nix flake check
# Build without applying changes
nix build .#nixosConfigurations.<machine>.config.system.build.toplevel
# Test configuration (temporary)
sudo nixos-rebuild test --flake .#<machine>
# Apply configuration permanently
sudo nixos-rebuild switch --flake .#<machine>
Git Workflow
- Feature Branch: Create branch for configuration changes
- Local Testing: Validate changes with
nixos-rebuild test - Pull Request: Submit changes for review
- Deploy: Apply configuration to target machines
Remote Deployment
- SSH-based: Remote deployment via secure shell
- Atomic Updates: Complete success or automatic rollback
- Health Checks: Service validation after deployment
- Centralized Management: Single repository for all infrastructure
Service Architecture
Core Services
- Git Hosting: Self-hosted Git with CI/CD capabilities
- Media Server: Streaming with transcoding support
- File Storage: NFS network storage with ZFS snapshots
- Web Gateway: Reverse proxy with SSL and external access
- Container Platform: Podman for containerized applications
Service Discovery
- Internal DNS: Tailscale for mesh network resolution
- External DNS: Public domain with SSL certificates
- Service Mesh: Inter-service communication via secure network
- Load Balancing: Traffic distribution and failover
Data Management
- ZFS Storage: Copy-on-write filesystem with snapshots
- Network Shares: NFS for cross-machine file access
- Backup Strategy: Automated snapshots and external backup
- Data Integrity: Checksums and redundancy
Security Model
Network Security
- VPN Mesh: All inter-machine traffic via Tailscale
- Firewall Rules: Service-specific port restrictions
- SSH Hardening: Key-based authentication only
- Fail2ban: Automated intrusion prevention
User Security
- Role Separation: Administrative vs daily-use accounts
- Key Management: Centralized SSH key distribution
- Privilege Escalation: Sudo access only where needed
- Service Accounts: Dedicated accounts for automated services
Infrastructure Security
- Configuration as Code: All changes tracked in version control
- Atomic Deployments: Rollback capability for failed changes
- Secret Management: Encrypted secrets with controlled access
- Security Updates: Regular dependency updates
Testing Strategy
Automated Testing
- Syntax Validation: Nix flake syntax checking
- Build Testing: Configuration build verification
- Module Testing: Individual component validation
- Integration Testing: Full system deployment tests
Manual Testing
- Boot Validation: System startup verification
- Service Health: Application functionality checks
- Network Connectivity: Inter-service communication tests
- User Environment: Desktop and development tool validation
Deployment Status
Infrastructure Maturity
- ✅ Multi-machine Configuration: 4 machines deployed
- ✅ Service Integration: Git hosting, media server, file storage
- ✅ Network Mesh: Secure VPN with service discovery
- ✅ External Access: Public services with SSL termination
- ✅ Centralized Management: Single repository for all infrastructure
Current Capabilities
- Development Environment: Full IDE setup with multiple desktop options
- File Services: Network storage with 900GB+ media library
- Git Hosting: Self-hosted with external access
- Media Streaming: Movie and TV series streaming with transcoding
- Container Platform: Podman-based containerized services
Documentation
- Migration Plan: Detailed implementation roadmap
- Development Workflow: Contribution guidelines
- Branching Strategy: Git workflow and conventions
- AI Instructions: Agent guidance for system management
License
MIT License - see LICENSE for details.
Infrastructure designed for reliability, security, and maintainability.