✨ 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!
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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-partitionaction - 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 logicmanifest_generator.go: Generate debos YAML from container infocontainer_processor.go: Extract and prepare container contentimage_builder.go: Orchestrate debos actions
3.2 debos Action Wrappers
image_partition_wrapper.go: Disk image creationfilesystem_wrapper.go: Partition and filesystem setupbootloader_wrapper.go: GRUB and boot configurationostree_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 partitionsfilesystem-deploy: Format and populate filesystemsostree-commit: Manage OSTree repositoriespack: 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]