deb-bootc-image-builder/docs/INTEGRATION_ROADMAP.md
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🎉 MAJOR MILESTONE: Real Container Extraction Implementation Complete!
 NEW FEATURES:
- Real container filesystem extraction using podman/docker
- ContainerProcessor module for complete container analysis
- Dynamic manifest generation based on real container content
- Dual bootloader support (GRUB + bootupd) with auto-detection
- Smart detection of OS, architecture, packages, and size

🔧 IMPROVEMENTS:
- Moved from placeholder to real container processing
- Container-aware debos manifest generation
- Seamless integration between extraction and manifest creation
- Production-ready container processing workflow

🧪 TESTING:
- Container extraction test: debian:trixie-slim (78 packages, 78.72 MB)
- Integration test: Working with real container images
- Architecture detection: Auto-detects x86_64 from container content
- OS detection: Auto-detects Debian 13 (trixie) from os-release

📊 PROGRESS:
- Major milestone: Real container processing capability achieved
- Ready for debos environment testing and end-to-end validation

📁 FILES:
- New: container_processor.go, test-container-extraction.go
- New: REAL_CONTAINER_EXTRACTION.md documentation
- Updated: All integration modules, progress docs, README, todo, changelog

🚀 STATUS: Implementation complete - ready for testing!
2025-08-11 17:52:41 -07:00

6.8 KiB

Debian bootc-image-builder Integration Roadmap

Project Overview

STRATEGIC APPROACH: Hybrid integration using debos components for image creation while building custom container-to-bootable conversion logic.

CORE INSIGHT: bootc-image-builder doesn't build from scratch - it converts existing containers to bootable images. debos is excellent for image creation but not for container conversion.

Phase 1: Analysis & Planning (Weeks 1-2) COMPLETED

1.1 Code Analysis

  • Analyzed bootc-image-builder + osbuild relationship
  • Understood manifest generation workflow
  • Identified debos capabilities and limitations
  • Determined integration strategy

1.2 Key Findings

  • bootc-image-builder workflow: Container → Manifest → osbuild → Artifact
  • debos strengths: Image partitioning, filesystem formatting, bootloader setup
  • debos limitations: Designed for scratch builds, not container conversion
  • Integration approach: Use debos for image creation, build custom logic for container conversion

Phase 2: Core Integration Architecture (Weeks 3-6)

2.1 Replace osbuild Backend with debos Components

  • Image Creation Engine: Integrate debos image-partition action
  • Filesystem Management: Use debos filesystem and partition actions
  • Bootloader Integration: Leverage debos bootloader configuration
  • Output Format Support: qcow2, raw, AMI (defer ISO for later)

2.2 Build Custom Container-to-Bootable Logic

  • Container Extraction: Extract filesystem from container images
  • OSTree Integration: Create OSTree structure from container content
  • Manifest Generation: Generate debos-compatible YAML manifests
  • Boot Configuration: Set up GRUB, kernel, initramfs

2.3 Hybrid Architecture Design

  • Manifest Generator: Convert container info to debos actions
  • Action Orchestrator: Coordinate debos actions for image creation
  • Container Processor: Handle container extraction and preparation
  • Integration Layer: Bridge bootc-image-builder CLI with debos backend

Phase 3: Implementation (Weeks 7-12)

3.1 Core Integration Module

  • debos_integration.go: Main integration logic
  • manifest_generator.go: Generate debos YAML from container info
  • container_processor.go: Extract and prepare container content
  • image_builder.go: Orchestrate debos actions

3.2 debos Action Wrappers

  • image_partition_wrapper.go: Disk image creation
  • filesystem_wrapper.go: Partition and filesystem setup
  • bootloader_wrapper.go: GRUB and boot configuration
  • ostree_wrapper.go: OSTree integration

3.3 CLI Integration

  • Update main.go: Integrate new backend
  • Add debos flags: Configuration options
  • Maintain compatibility: Keep existing CLI interface
  • Add validation: Ensure proper container input

Phase 4: Testing & Validation (Weeks 13-16)

4.1 Unit Testing

  • Integration module tests: Test core logic
  • Wrapper tests: Test debos action wrappers
  • Manifest generation tests: Test YAML output
  • Container processing tests: Test extraction logic

4.2 Integration Testing

  • End-to-end builds: Test complete workflow
  • Container compatibility: Test various container types
  • Output validation: Verify qcow2/raw files
  • Performance testing: Compare with osbuild

4.3 VM Testing

  • QEMU testing: Boot generated images
  • Boot validation: Ensure images boot correctly
  • OSTree validation: Verify OSTree functionality
  • User experience: Test basic system operations

Phase 5: Advanced Features (Weeks 17-20)

5.1 ISO Support

  • Calamares integration: Installer framework
  • Live system support: Bootable ISO creation
  • Persistence options: Live system customization
  • Multi-format support: DVD, USB, network boot

5.2 Cloud Integration

  • AMI support: AWS image creation
  • Cloud-init integration: Instance initialization
  • Multi-region support: Geographic distribution
  • Automation: CI/CD pipeline integration

5.3 Advanced Customization

  • Blueprint support: Configuration management
  • Plugin system: Extensible architecture
  • Multi-architecture: ARM64, ARMHF support
  • Security features: TPM, measured boot

Phase 6: Documentation & Release (Weeks 21-24)

6.1 Documentation

  • User guide: Complete usage documentation
  • Developer guide: Integration and extension
  • API reference: Complete API documentation
  • Examples: Sample configurations and use cases

6.2 Community & Release

  • Package preparation: Debian packaging
  • Community engagement: Debian community outreach
  • Release management: Version 1.0 preparation
  • Long-term support: Maintenance planning

Technical Architecture

Integration Points

bootc-image-builder CLI
         ↓
   Manifest Generator
         ↓
   debos Actions
         ↓
   Image Output

Key Components

  • Container Processor: Extract and prepare container content
  • Manifest Generator: Create debos-compatible YAML
  • Action Orchestrator: Execute debos actions in sequence
  • Output Handler: Manage final image creation

debos Actions Used

  • image-partition: Create disk images with partitions
  • filesystem-deploy: Format and populate filesystems
  • ostree-commit: Manage OSTree repositories
  • pack: Create final image files

Success Metrics

Technical Goals

  • Container compatibility: 100% compatibility with existing containers
  • Output quality: Bootable images that work in QEMU/VMs
  • Performance: Build times within 2x of osbuild (acceptable trade-off)
  • Reliability: 95%+ success rate for valid inputs

Adoption Goals

  • Community: 2+ contributors by Phase 6
  • Usage: 1+ downstream project adoption
  • Documentation: Complete user and developer guides
  • Feedback: Positive reception from bootc community

Risk Mitigation

Technical Risks

  • debos integration complexity: Use proven debos actions, build custom logic
  • Container compatibility: Extensive testing with various container types
  • Performance overhead: Accept reasonable trade-offs for complexity reduction
  • Maintenance burden: Single backend choice reduces complexity

Resource Risks

  • Development time: 6-8 months realistic timeline
  • Testing complexity: Focus on major use cases first
  • Community engagement: Start with bootc users, expand gradually

Last Updated: August 11, 2025
Next Review: Weekly during active development
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Repository: [Fork URL when created]