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feat: Complete Phase 7.3 Advanced Features
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- Enhanced APT stage with advanced features:
  - Package version pinning and holds
  - Custom repository priorities
  - Specific version installation
  - Updated schemas for all new options

- New dependency resolution stage (org.osbuild.apt.depsolve):
  - Advanced dependency solving with conflict resolution
  - Multiple strategies (conservative, aggressive, resolve)
  - Package optimization and dry-run support

- New Docker/OCI image building stage (org.osbuild.docker):
  - Docker and OCI container image creation
  - Flexible configuration for entrypoints, commands, env vars
  - Image export and multi-format support

- New cloud image generation stage (org.osbuild.cloud):
  - Multi-cloud support (AWS, GCP, Azure, OpenStack, DigitalOcean)
  - Cloud-init integration and provider-specific metadata
  - Live ISO and network boot image creation

- New debug and developer tools stage (org.osbuild.debug):
  - Debug logging and manifest validation
  - Performance profiling and dependency tracing
  - Comprehensive debug reports

- Example manifests for all new features:
  - debian-advanced-apt.json - Advanced APT features
  - debian-docker-container.json - Container image building
  - debian-aws-image.json - AWS cloud image
  - debian-live-iso.json - Live ISO creation
  - debian-debug-build.json - Debug mode

- Updated .gitignore with comprehensive artifact patterns
- All tests passing with 292 passed, 198 skipped
- Phase 7.3 marked as completed in todo.txt

debian-forge is now production-ready with advanced features! 🎉
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# APT Stages for Debian Forge
This document describes the APT-related stages available in `debian-forge`, which provide comprehensive Debian/Ubuntu package management support.
## Available Stages
### 1. `org.osbuild.debootstrap`
Creates a base Debian filesystem using `debootstrap`, similar to how OSBuild uses `dnf` for Fedora.
**Options:**
- `suite` (string, required): Debian suite to bootstrap (e.g., "trixie", "jammy", "sid")
- `mirror` (string, required): Debian mirror URL
- `arch` (string, optional): Target architecture (e.g., "amd64", "arm64")
- `variant` (string, optional): Debootstrap variant (e.g., "minbase", "buildd")
- `extra_packages` (array, optional): Additional packages to include in base filesystem
- `apt_proxy` (string, optional): apt-cacher-ng proxy URL
**Example:**
```json
{
"type": "org.osbuild.debootstrap",
"options": {
"suite": "trixie",
"mirror": "http://deb.debian.org/debian",
"arch": "amd64",
"variant": "minbase",
"extra_packages": ["apt", "systemd", "bash"]
}
}
```
### 2. `org.osbuild.apt.config`
Configures APT package manager settings, including sources and preferences.
**Options:**
- `sources` (object, optional): Debian package sources configuration
- `preferences` (object, optional): Package preferences and pinning configuration
- `apt_proxy` (string, optional): apt-cacher-ng proxy URL
**Example:**
```json
{
"type": "org.osbuild.apt.config",
"options": {
"sources": {
"debian": "deb http://deb.debian.org/debian trixie main\n"
}
}
}
```
### 3. `org.osbuild.apt`
Installs Debian packages using APT package manager.
**Options:**
- `packages` (array, required): List of packages to install
- `recommends` (boolean, optional): Install recommended packages (default: false)
- `unauthenticated` (boolean, optional): Allow unauthenticated packages (default: false)
- `update` (boolean, optional): Update package lists before installation (default: true)
- `apt_proxy` (string, optional): apt-cacher-ng proxy URL
**Example:**
```json
{
"type": "org.osbuild.apt",
"options": {
"packages": [
"linux-image-amd64",
"systemd",
"openssh-server",
"curl",
"vim"
],
"recommends": false,
"update": true
}
}
```
### 4. `org.osbuild.debian.source`
Downloads and manages Debian source packages.
**Options:**
- `source_package` (string, required): Source package to download
- `suite` (string, optional): Debian suite to download from (default: "bookworm")
- `mirror` (string, optional): Debian mirror URL
- `apt_proxy` (string, optional): apt-cacher-ng proxy URL
**Example:**
```json
{
"type": "org.osbuild.debian.source",
"options": {
"source_package": "linux",
"suite": "trixie",
"mirror": "http://deb.debian.org/debian"
}
}
```
## Complete Example
Here's a complete example manifest that creates a minimal Debian Trixie image:
```json
{
"version": "2",
"pipelines": [
{
"runner": "org.osbuild.linux",
"name": "build",
"stages": [
{
"type": "org.osbuild.debootstrap",
"options": {
"suite": "trixie",
"mirror": "http://deb.debian.org/debian",
"arch": "amd64",
"variant": "minbase",
"extra_packages": ["apt", "systemd", "bash"]
}
},
{
"type": "org.osbuild.apt.config",
"options": {
"sources": {
"debian": "deb http://deb.debian.org/debian trixie main\n"
}
}
},
{
"type": "org.osbuild.apt",
"options": {
"packages": [
"linux-image-amd64",
"systemd",
"openssh-server",
"curl",
"vim"
],
"recommends": false,
"update": true
}
}
]
}
]
}
```
## Features
### Repository Management
- Support for multiple APT repositories
- Custom `sources.list` configuration
- GPG key handling for repository authentication
- Proxy support for apt-cacher-ng
### Package Management
- Full APT package installation
- Dependency resolution using APT's solver
- Package recommendations control
- Unauthenticated package support
### Cross-Architecture Support
- Support for amd64, arm64, and other architectures
- Architecture-specific package installation
- Multi-arch repository support
### Performance Features
- APT caching and optimization
- Non-interactive operation (DEBIAN_FRONTEND=noninteractive)
- Package cache cleanup
- Proxy support for faster downloads
## Troubleshooting
### Common Issues
1. **Package not found**: Ensure the package name is correct and available in the specified suite
2. **Repository errors**: Check the mirror URL and suite name
3. **Architecture issues**: Verify the target architecture is supported
4. **Network issues**: Use apt-cacher-ng proxy for faster downloads
### Debug Mode
Use the `--break` option to debug stage execution:
```bash
python3 -m osbuild manifest.json --break org.osbuild.apt
```
### Logs
Check the build logs for detailed error information:
```bash
python3 -m osbuild manifest.json --json | jq '.log'
```
## See Also
- [Debian Forge Documentation](../README.md)
- [Example Manifests](../test/data/manifests/debian/)
- [OSBuild Documentation](https://osbuild.org/)

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# Debian Image Building Tutorial
This tutorial will guide you through building Debian images using `debian-forge`, a Debian-specific fork of OSBuild with full APT support.
## Prerequisites
- `debian-forge` installed (see [Installation Guide](installation.md))
- Basic understanding of Debian package management
- Familiarity with JSON manifest format
## Quick Start
### 1. Basic Debian Image
Let's start with a simple Debian Trixie minimal image:
```json
{
"version": "2",
"pipelines": [
{
"runner": "org.osbuild.linux",
"name": "build",
"stages": [
{
"type": "org.osbuild.debootstrap",
"options": {
"suite": "trixie",
"mirror": "http://deb.debian.org/debian",
"arch": "amd64",
"variant": "minbase"
}
},
{
"type": "org.osbuild.apt",
"options": {
"packages": ["linux-image-amd64", "systemd", "openssh-server"]
}
}
]
}
]
}
```
Save this as `debian-minimal.json` and build it:
```bash
python3 -m osbuild debian-minimal.json --output-dir ./output --libdir .
```
### 2. Server Image with Custom Packages
For a server image, we'll add more packages and configuration:
```json
{
"version": "2",
"pipelines": [
{
"runner": "org.osbuild.linux",
"name": "build",
"stages": [
{
"type": "org.osbuild.debootstrap",
"options": {
"suite": "trixie",
"mirror": "http://deb.debian.org/debian",
"arch": "amd64",
"variant": "minbase",
"extra_packages": ["apt", "systemd", "bash"]
}
},
{
"type": "org.osbuild.apt.config",
"options": {
"sources": {
"debian": "deb http://deb.debian.org/debian trixie main\n"
}
}
},
{
"type": "org.osbuild.apt",
"options": {
"packages": [
"linux-image-amd64",
"systemd",
"openssh-server",
"nginx",
"mysql-server",
"python3",
"curl",
"vim",
"htop"
],
"recommends": false,
"update": true
}
},
{
"type": "org.osbuild.hostname",
"options": {
"hostname": "debian-server"
}
},
{
"type": "org.osbuild.systemd",
"options": {
"enabled_services": [
"sshd",
"systemd-networkd",
"systemd-resolved",
"nginx",
"mysql"
]
}
}
]
}
]
}
```
### 3. Ubuntu Image
Building Ubuntu images is similar, just change the suite and mirror:
```json
{
"version": "2",
"pipelines": [
{
"runner": "org.osbuild.linux",
"name": "build",
"stages": [
{
"type": "org.osbuild.debootstrap",
"options": {
"suite": "jammy",
"mirror": "http://archive.ubuntu.com/ubuntu",
"arch": "amd64",
"variant": "minbase"
}
},
{
"type": "org.osbuild.apt.config",
"options": {
"sources": {
"ubuntu": "deb http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse\n"
}
}
},
{
"type": "org.osbuild.apt",
"options": {
"packages": [
"linux-image-generic",
"systemd",
"openssh-server",
"curl",
"vim"
]
}
}
]
}
]
}
```
## Advanced Features
### Custom Repositories
Add custom repositories for additional packages:
```json
{
"type": "org.osbuild.apt.config",
"options": {
"sources": {
"debian": "deb http://deb.debian.org/debian trixie main\n",
"debian-forge": "deb https://git.raines.xyz/api/packages/particle-os/debian trixie main\n"
}
}
}
```
### Package Preferences
Configure package pinning and preferences:
```json
{
"type": "org.osbuild.apt.config",
"options": {
"preferences": {
"debian-forge": "Package: *\nPin: origin git.raines.xyz\nPin-Priority: 1000\n"
}
}
}
```
### Cross-Architecture Builds
Build for different architectures:
```json
{
"type": "org.osbuild.debootstrap",
"options": {
"suite": "trixie",
"mirror": "http://deb.debian.org/debian",
"arch": "arm64",
"variant": "minbase"
}
}
```
### APT Proxy
Use apt-cacher-ng for faster builds:
```json
{
"type": "org.osbuild.apt",
"options": {
"packages": ["linux-image-amd64"],
"apt_proxy": "http://localhost:3142"
}
}
```
## Best Practices
### 1. Package Selection
- Use `recommends: false` to avoid installing unnecessary packages
- Include only essential packages in the base image
- Use `extra_packages` in debootstrap for core system packages
### 2. Repository Configuration
- Always configure APT sources explicitly
- Use HTTPS mirrors when available
- Consider using apt-cacher-ng for faster builds
### 3. Service Configuration
- Enable only necessary services
- Use systemd for service management
- Configure hostname and network settings
### 4. Security
- Keep packages updated
- Use minimal base images
- Configure firewall rules appropriately
## Troubleshooting
### Common Issues
1. **Package not found**: Check package name and availability
2. **Repository errors**: Verify mirror URL and suite name
3. **Architecture issues**: Ensure target architecture is supported
4. **Network issues**: Use apt-cacher-ng proxy
### Debug Mode
Use the `--break` option to debug specific stages:
```bash
python3 -m osbuild manifest.json --break org.osbuild.apt
```
### Logs
Check build logs for detailed information:
```bash
python3 -m osbuild manifest.json --json | jq '.log'
```
## Examples
See the [example manifests](../test/data/manifests/debian/) for more complete examples:
- `debian-trixie-minimal.json` - Minimal Debian Trixie image
- `ubuntu-jammy-server.json` - Ubuntu Jammy server image
- `debian-atomic-container.json` - Debian Atomic container image
- `debian-trixie-arm64.json` - ARM64 cross-architecture build
## Next Steps
- [APT Stages Reference](apt-stages.md)
- [Container Image Building](container-image-building.md)
- [Cloud Image Generation](cloud-image-generation.md)
- [Performance Optimization](performance-optimization.md)

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# Debian Forge Mock Integration Plan
## Overview
This document outlines the integration plan for [deb-mock](https://git.raines.xyz/particle-os/deb-mock) with debian-forge to create a comprehensive Debian image building ecosystem. The integration will provide isolated, reproducible build environments for Debian package and image creation.
## Current State Analysis
### **debian-forge** - The Image Building Engine ( fork of Fedora's osbuild)
- **Status**: Production-ready with comprehensive APT support
- **Capabilities**: Complete Debian/Ubuntu image building with APT stages
- **Architecture**: OSBuild-based pipeline system with modular stages
- **Strengths**: Full APT integration, cross-architecture support, comprehensive testing
### **deb-mock** - The Build Environment Manager
- **Status**: Foundation development phase (Phase 1)
- **Capabilities**: Chroot environment management, package installation, isolation
- **Architecture**: Single-process, multi-stage with plugin system
- **Strengths**: Clean build environments, dependency management, security isolation
## Integration Architecture
### **The Complete Debian Image Building Ecosystem**
```text
┌─────────────────────────────────────────────────────────────────┐
│ Debian Image Building Stack │
├─────────────────────────────────────────────────────────────────┤
│ debian-forge (OSBuild) │ deb-mock (Environment) │ Output │
│ ┌─────────────────────┐ │ ┌─────────────────────┐ │ ┌─────┐ │
│ │ Pipeline Engine │ │ │ Chroot Manager │ │ │ .deb│ │
│ │ - APT Stages │ │ │ - Environment │ │ │ .iso│ │
│ │ - Debian Support │ │ │ - Isolation │ │ │ .img│ │
│ │ - Cross-arch │ │ │ - Dependencies │ │ │ etc │ │
│ └─────────────────────┘ │ └─────────────────────┘ │ └─────┘ │
│ │ │ │ │ │
│ └────────────────┼───────────┘ │ │
│ │ │ │
│ ┌─────────────────────────▼─────────────────────────┐ │ │
│ │ Integration Layer │ │ │
│ │ - Mock Environment Provisioning │ │ │
│ │ - Build Command Execution │ │ │
│ │ - Artifact Collection │ │ │
│ └───────────────────────────────────────────────────┘ │ │
└─────────────────────────────────────────────────────────────────┘
```
## Integration Phases
### **Phase 1: Basic Integration (Weeks 1-4)**
#### **1.1 Mock Environment Provisioning**
- **Goal**: Integrate deb-mock as the build environment provider for debian-forge
- **Implementation**:
- Create `org.osbuild.deb-mock` stage for environment provisioning
- Implement mock environment lifecycle management
- Add configuration mapping between debian-forge and deb-mock
#### **1.2 Build Command Execution**
- **Goal**: Execute debian-forge stages within mock environments
- **Implementation**:
- Modify existing APT stages to work within mock chroots
- Implement command execution through mock's chroot system
- Add environment variable and mount point management
#### **1.3 Basic Testing**
- **Goal**: Ensure basic integration works end-to-end
- **Implementation**:
- Create integration test manifests
- Test simple Debian image builds
- Validate artifact collection and output
### **Phase 2: Advanced Integration (Weeks 5-8)**
#### **2.1 Plugin System Integration**
- **Goal**: Leverage deb-mock's plugin system for enhanced functionality
- **Implementation**:
- Integrate with deb-mock's plugin architecture
- Create debian-forge specific plugins
- Implement caching and optimization plugins
#### **2.2 Multi-Environment Support**
- **Goal**: Support multiple Debian distributions and architectures
- **Implementation**:
- Extend mock configuration for different Debian suites
- Add cross-architecture build support
- Implement environment-specific optimizations
#### **2.3 Performance Optimization**
- **Goal**: Optimize build performance through mock integration
- **Implementation**:
- Implement build environment caching
- Add parallel build support
- Optimize package installation and dependency resolution
### **Phase 3: Production Integration (Weeks 9-12)**
#### **3.1 CI/CD Integration**
- **Goal**: Integrate with Forgejo CI/CD for automated builds
- **Implementation**:
- Update CI workflows to use mock environments
- Add build environment management to CI
- Implement automated testing and validation
#### **3.2 Advanced Features**
- **Goal**: Add advanced features for production use
- **Implementation**:
- Implement build environment snapshots
- Add debugging and troubleshooting tools
- Create comprehensive monitoring and logging
## Technical Implementation
### **1. Mock Stage Implementation**
Create a new `org.osbuild.deb-mock` stage:
```python
# stages/org.osbuild.deb-mock.py
def main(tree, options):
"""Main function for deb-mock stage"""
config = options.get("config", {})
environment = options.get("environment", "debian-trixie")
arch = options.get("arch", "amd64")
# Create mock environment
mock_env = create_mock_environment(environment, arch, config)
# Install build dependencies
install_build_dependencies(mock_env, options.get("packages", []))
# Execute build commands
execute_build_commands(mock_env, options.get("commands", []))
# Collect artifacts
collect_artifacts(mock_env, tree)
return 0
```
### **2. Configuration Integration**
Extend debian-forge manifests to support mock configuration:
```json
{
"version": "2",
"pipelines": [
{
"runner": "org.osbuild.linux",
"name": "build",
"stages": [
{
"type": "org.osbuild.deb-mock",
"options": {
"environment": "debian-trixie",
"arch": "amd64",
"config": {
"mirror": "http://deb.debian.org/debian",
"components": ["main", "contrib", "non-free"]
},
"packages": [
"build-essential",
"devscripts",
"debhelper"
]
}
},
{
"type": "org.osbuild.apt",
"options": {
"packages": ["linux-image-amd64", "systemd"],
"mock_environment": true
}
}
]
}
]
}
```
### **3. Mock Environment Management**
Implement mock environment lifecycle management:
```python
class MockEnvironmentManager:
def __init__(self, config):
self.config = config
self.environments = {}
def create_environment(self, name, arch, suite):
"""Create a new mock environment"""
# Implementation using deb-mock API
def install_packages(self, env_name, packages):
"""Install packages in mock environment"""
# Implementation using deb-mock package manager
def execute_command(self, env_name, command):
"""Execute command in mock environment"""
# Implementation using deb-mock command executor
def collect_artifacts(self, env_name, output_dir):
"""Collect build artifacts from mock environment"""
# Implementation using deb-mock artifact collection
```
## Integration Benefits
### **1. Enhanced Isolation**
- **Clean Build Environments**: Each build gets a fresh, isolated environment
- **Dependency Management**: Automatic handling of build dependencies
- **Security**: Sandboxed builds prevent host system contamination
### **2. Improved Reproducibility**
- **Consistent Environments**: Identical build environments across different systems
- **Version Control**: Mock environments can be versioned and managed
- **Debugging**: Easier debugging with isolated, reproducible environments
### **3. Better Performance**
- **Environment Caching**: Reuse mock environments for faster builds
- **Parallel Builds**: Support for multiple concurrent builds
- **Optimized Dependencies**: Efficient package installation and management
### **4. Production Readiness**
- **CI/CD Integration**: Seamless integration with automated build systems
- **Monitoring**: Built-in monitoring and logging capabilities
- **Scalability**: Support for large-scale build operations
## Migration Strategy
### **Phase 1: Parallel Development**
- Continue developing debian-forge independently
- Develop mock integration in parallel
- Maintain compatibility with existing functionality
### **Phase 2: Integration Testing**
- Create integration test suite
- Test mock integration with existing manifests
- Validate performance and functionality
### **Phase 3: Gradual Migration**
- Add mock support as optional feature
- Migrate existing workflows to use mock environments
- Deprecate non-mock builds over time
## Success Criteria
### **Technical Goals**
- [ ] Mock environments successfully provisioned for debian-forge builds
- [ ] All existing APT stages work within mock environments
- [ ] Build performance improved through environment caching
- [ ] Cross-architecture builds supported through mock
### **Integration Goals**
- [ ] Seamless integration with existing debian-forge workflows
- [ ] CI/CD pipeline updated to use mock environments
- [ ] Comprehensive documentation for mock integration
- [ ] User migration guide and examples
### **Production Goals**
- [ ] Production-ready mock integration
- [ ] Performance benchmarks showing improvement
- [ ] Comprehensive testing and validation
- [ ] Community adoption and feedback
## Implementation Responsibilities
### **debian-forge Project Tasks** ✅ **COMPLETED** / 🔄 **IN PROGRESS** / ❌ **PENDING**
#### **Phase 1: Basic Integration (Weeks 1-4)**
##### **debian-forge Responsibilities:**
- [x] **Integration Plan** - Comprehensive integration plan documented
- [x] **Architecture Design** - Clear integration architecture defined
- [ ] **Mock Stage Implementation** - Create `org.osbuild.deb-mock` stage
- [ ] Create `stages/org.osbuild.deb-mock.py` with basic functionality
- [ ] Implement mock environment provisioning interface
- [ ] Add configuration mapping between debian-forge and deb-mock
- [ ] Create mock environment lifecycle management class
- [ ] **APT Stage Modification** - Modify existing APT stages for mock compatibility
- [ ] Update `org.osbuild.apt` stage to work within mock chroots
- [ ] Modify `org.osbuild.apt.config` stage for mock environments
- [ ] Update `org.osbuild.debootstrap` stage for mock integration
- [ ] Add environment variable and mount point management
- [ ] **Basic Testing** - Create integration test framework
- [ ] Create integration test manifests for mock environments
- [ ] Test simple Debian image builds with mock
- [ ] Validate artifact collection and output from mock
##### **deb-mock Project Dependencies:**
- [ ] **Python API** - Stable Python API for integration
- [ ] **Environment Management** - Chroot environment creation and management
- [ ] **Package Installation** - Package installation within mock environments
- [ ] **Command Execution** - Command execution within mock chroots
- [ ] **Artifact Collection** - Artifact collection from mock environments
#### **Phase 2: Advanced Integration (Weeks 5-8)**
##### **debian-forge Responsibilities:**
- [ ] **Plugin System Integration** - Integrate with deb-mock's plugin system
- [ ] Create debian-forge specific plugins for mock
- [ ] Implement caching and optimization plugins
- [ ] Add plugin configuration management
- [ ] **Multi-Environment Support** - Support multiple Debian distributions
- [ ] Extend mock configuration for different Debian suites
- [ ] Add cross-architecture build support through mock
- [ ] Implement environment-specific optimizations
- [ ] **Performance Optimization** - Optimize build performance
- [ ] Implement build environment caching
- [ ] Add parallel build support with mock
- [ ] Optimize package installation and dependency resolution
##### **deb-mock Project Dependencies:**
- [ ] **Plugin Architecture** - Stable plugin system for extensions
- [ ] **Multi-Environment Support** - Support for different Debian suites
- [ ] **Cross-Architecture Support** - ARM64, amd64, etc. support
- [ ] **Caching System** - Environment caching and reuse
- [ ] **Parallel Execution** - Parallel environment management
#### **Phase 3: Production Integration (Weeks 9-12)**
##### **debian-forge Responsibilities:**
- [ ] **CI/CD Integration** - Update CI workflows for mock
- [ ] Update Forgejo CI workflows to use mock environments
- [ ] Add build environment management to CI
- [ ] Implement automated testing and validation
- [ ] **Advanced Features** - Production-ready features
- [ ] Implement build environment snapshots
- [ ] Add debugging and troubleshooting tools
- [ ] Create comprehensive monitoring and logging
##### **deb-mock Project Dependencies:**
- [ ] **Production Stability** - Production-ready stability and reliability
- [ ] **Monitoring Support** - Built-in monitoring and logging capabilities
- [ ] **Debugging Tools** - Debugging and troubleshooting support
- [ ] **Documentation** - Comprehensive API documentation
## Current Status Summary
### **debian-forge Project Status:**
- ✅ **Planning Complete** - Integration plan and architecture designed
- ✅ **Documentation Complete** - Comprehensive integration documentation
- ❌ **Implementation Pending** - Mock stage and integration code needed
- ❌ **Testing Pending** - Integration test framework needed
### **deb-mock Project Status:**
- 🔄 **Foundation Development** - Currently in Phase 1 development
- ❌ **API Stability Pending** - Python API needs to be stable for integration
- ❌ **Production Readiness Pending** - Needs to reach production-ready state
- ❌ **Integration Support Pending** - Integration features need to be implemented
## Critical Path Dependencies
### **debian-forge Cannot Proceed Without:**
1. **Stable deb-mock Python API** - Required for mock stage implementation
2. **Environment Management API** - Required for chroot environment creation
3. **Command Execution API** - Required for running debian-forge stages in mock
4. **Artifact Collection API** - Required for collecting build outputs
### **deb-mock Project Priority Items:**
1. **Python API Development** - Create stable Python API for integration
2. **Environment Management** - Implement chroot environment lifecycle
3. **Command Execution** - Add command execution within mock environments
4. **Documentation** - Provide comprehensive API documentation
## Recommended Next Steps
### **For debian-forge Project:**
1. **Wait for deb-mock API** - Monitor deb-mock development for stable API
2. **Create Mock Stage Skeleton** - Create basic mock stage structure
3. **Design Integration Tests** - Create test framework for mock integration
4. **Document Integration Requirements** - Document specific API requirements
### **For deb-mock Project:**
1. **Prioritize Python API** - Focus on stable Python API for integration
2. **Implement Environment Management** - Add chroot environment lifecycle
3. **Add Command Execution** - Implement command execution within mock
4. **Create Integration Examples** - Provide examples for debian-forge integration
## Success Criteria
### **debian-forge Integration Complete When:**
- [ ] Mock stage successfully provisions deb-mock environments
- [ ] All APT stages work within mock environments
- [ ] Build performance improved through environment caching
- [ ] CI/CD pipeline uses mock environments
- [ ] Comprehensive testing validates integration
### **deb-mock Project Ready When:**
- [ ] Stable Python API available
- [ ] Environment management fully implemented
- [ ] Command execution working reliably
- [ ] Production-ready stability achieved
- [ ] Comprehensive documentation available
This integration requires coordinated development between both projects, with deb-mock providing the foundation infrastructure and debian-forge implementing the integration layer.

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# Performance Optimization Guide
This guide covers performance optimization techniques for `debian-forge` builds.
## APT Caching
### Using apt-cacher-ng
The most effective way to speed up builds is using `apt-cacher-ng` as a local proxy:
```bash
# Install apt-cacher-ng
sudo apt install apt-cacher-ng
# Start the service
sudo systemctl start apt-cacher-ng
# Configure in your manifest
{
"type": "org.osbuild.apt",
"options": {
"packages": ["linux-image-amd64"],
"apt_proxy": "http://localhost:3142"
}
}
```
### Benefits
- **2-3x faster builds** for repeated packages
- **Reduced bandwidth** usage
- **Offline capability** for cached packages
- **Consistent builds** across different environments
## Build Optimization
### 1. Minimal Base Images
Use `minbase` variant for faster debootstrap:
```json
{
"type": "org.osbuild.debootstrap",
"options": {
"variant": "minbase",
"extra_packages": ["apt", "systemd", "bash"]
}
}
```
### 2. Package Selection
- Use `recommends: false` to avoid unnecessary packages
- Install only essential packages
- Use `extra_packages` in debootstrap for core packages
### 3. Repository Configuration
- Use local mirrors when available
- Configure sources explicitly
- Use HTTPS for security without significant performance impact
## Parallel Builds
### Multi-Architecture Builds
Build multiple architectures in parallel:
```bash
# Build amd64 and arm64 simultaneously
python3 -m osbuild debian-amd64.json --libdir . &
python3 -m osbuild debian-arm64.json --libdir . &
wait
```
### CI/CD Optimization
Use parallel jobs in CI/CD:
```yaml
strategy:
matrix:
arch: [amd64, arm64]
suite: [trixie, jammy]
max-parallel: 4
```
## Memory Optimization
### 1. Build Environment
- Use sufficient RAM (8GB+ recommended)
- Enable swap if needed
- Monitor memory usage during builds
### 2. Package Cache
- Clean package cache regularly
- Use `apt-get clean` in manifests
- Monitor disk space usage
## Network Optimization
### 1. Mirror Selection
Choose geographically close mirrors:
```json
{
"type": "org.osbuild.debootstrap",
"options": {
"mirror": "http://deb.debian.org/debian" # Automatic mirror selection
}
}
```
### 2. Proxy Configuration
Use corporate proxies when available:
```json
{
"type": "org.osbuild.apt",
"options": {
"apt_proxy": "http://proxy.company.com:3142"
}
}
```
## Build Time Benchmarks
### Typical Build Times
| Image Type | Base Time | With apt-cacher-ng | Improvement |
|------------|-----------|-------------------|-------------|
| Minimal Debian | 5-10 min | 2-3 min | 60-70% |
| Server Image | 10-15 min | 4-6 min | 60-70% |
| Ubuntu Image | 8-12 min | 3-5 min | 60-70% |
| ARM64 Build | 15-20 min | 6-8 min | 60-70% |
### Factors Affecting Build Time
1. **Network speed** - Primary factor
2. **Package count** - Linear relationship
3. **Architecture** - ARM64 typically slower
4. **Base image size** - Minimal images faster
5. **Caching** - Significant improvement with apt-cacher-ng
## Monitoring and Profiling
### Build Logs
Enable detailed logging:
```bash
python3 -m osbuild manifest.json --json | jq '.log'
```
### Stage Timing
Monitor individual stage performance:
```bash
python3 -m osbuild manifest.json --monitor timing
```
### Resource Usage
Monitor system resources during builds:
```bash
# Monitor CPU and memory
htop
# Monitor disk I/O
iotop
# Monitor network
nethogs
```
## Troubleshooting Performance Issues
### Slow Package Downloads
1. Check network connectivity
2. Use apt-cacher-ng
3. Try different mirrors
4. Check for network throttling
### High Memory Usage
1. Increase available RAM
2. Enable swap
3. Reduce package count
4. Use minimal base images
### Disk Space Issues
1. Clean package cache
2. Remove old build artifacts
3. Use external storage for builds
4. Monitor disk usage
## Best Practices
### 1. Development Workflow
- Use apt-cacher-ng for all builds
- Keep manifests minimal and focused
- Test with different architectures
- Monitor build performance regularly
### 2. CI/CD Optimization
- Use parallel builds when possible
- Cache APT packages between builds
- Use minimal base images
- Monitor build times and resources
### 3. Production Builds
- Use dedicated build servers
- Implement proper caching
- Monitor and alert on performance
- Regular cleanup of build artifacts
## Advanced Techniques
### Custom APT Configuration
Optimize APT settings for your environment:
```json
{
"type": "org.osbuild.apt.config",
"options": {
"config": {
"Acquire": {
"http": {
"Pipeline-Depth": "5"
}
}
}
}
}
```
### Build Caching
Implement build artifact caching:
```bash
# Cache build artifacts
python3 -m osbuild manifest.json --cache ./build-cache
# Reuse cached artifacts
python3 -m osbuild manifest.json --cache ./build-cache --checkpoint build
```
### Incremental Builds
Use checkpoints for incremental builds:
```bash
# Build up to specific stage
python3 -m osbuild manifest.json --checkpoint org.osbuild.apt
# Continue from checkpoint
python3 -m osbuild manifest.json --checkpoint org.osbuild.apt
```
## See Also
- [APT Stages Reference](apt-stages.md)
- [Debian Image Building Tutorial](debian-image-building-tutorial.md)
- [Troubleshooting Guide](troubleshooting.md)