dokku-docker-compose/docs/todo.md

Dokku Docker Compose Plugin - Implementation Plan

Phase 1: Project Setup

• Initialize Git repository
• Set up project structure
• Create basic plugin files
  • plugin.toml - Plugin metadata
  • commands - Main plugin commands
  • functions - Core functions
  • tests - Test directory
• Add README.md with basic usage

Phase 2: Core Functionality

2.1 Basic Plugin Structure - COMPLETED

• Implement plugin initialization
• Create help command
• Add version information
• Set up logging system

2.2 Docker Compose Parser - COMPLETED

• Add YAML parsing with yq
• Validate compose file version
• Extract service definitions
• Handle service dependencies
• Support for volumes and networks
• Environment variable handling
• Port mapping
• Plugin integration for databases v3 compose formats
• Comprehensive test coverage for parser functions
• Handle YAML anchors and references

2.3 Dokku Plugin Integration - IN PROGRESS

• Create service detection system for Dokku plugins
• Implement plugin installation check
• Add support for core plugins (postgres, redis, etc.)
• Map Docker Compose config to Dokku plugin config
• Handle service linking with plugins
• Implement fallback to container when plugin is not available

2.4 Dokku App Creation

• Create function to generate valid Dokku app names
• Implement basic app creation
• Add error handling for existing apps
• Implement dry-run mode

Phase 3: Service Configuration

3.1 Plugin Service Configuration

• Implement plugin-specific configuration mapping
• Handle plugin version specifications
• Configure resource limits for plugin services
• Set up backup policies for data services
• Implement plugin service health checks

3.2 Basic Container Service Configuration

• Map service images to Dokku apps
• Handle environment variables
• Configure container resources (CPU, memory)
• Set up build context for Dockerfile builds

3.3 Networking

• Create and configure Dokku networks
• Map container ports
• Handle service links and depends_on
• Configure DNS settings

3.3 Storage

• Create and map volumes
• Handle bind mounts
• Configure volume permissions

Phase 4: Plugin-Specific Features

4.1 Database Plugins

• Handle database initialization
• Support for database extensions
• Implement backup/restore functionality
• Support for read replicas

4.2 Cache Plugins

• Configure memory limits
• Set up eviction policies
• Implement persistence options

Phase 5: Advanced Features

4.1 Build System

• Support Dockerfile builds
• Handle build arguments
• Support multi-stage builds
• Implement build caching

4.2 Health Checks

• Convert Docker healthchecks to Dokku checks
• Configure liveness/readiness probes
• Implement custom health check commands

4.3 Logging and Monitoring

• Set up log aggregation
• Configure monitoring
• Implement log rotation

Phase 6: Testing and Documentation

6.1 Testing

• Unit tests for core functions
• Integration tests with sample compose files
• Test error conditions
• Performance testing

6.2 Documentation

• Complete CLI documentation
• Examples directory
• Troubleshooting guide
• Contribution guidelines

Phase 7: Polish and Release

7.1 Error Handling

• Comprehensive error messages
• Graceful rollback on failure
• Input validation

7.2 Security

• Secure handling of sensitive data
• Input sanitization
• Permission checks

7.3 Performance

• Optimize for large compose files
• Add parallel processing where possible
• Implement progress indicators

Phase 8: Future Enhancements (Post-MVP)

8.1 Export Functionality

• Export Dokku apps to compose format
• Support for app updates

8.2 Plugin System

• Extension points for custom service types
• Support for Compose extensions

8.3 CI/CD Integration

• GitHub Actions workflow
• Automated testing
• Release automation

Getting Started

Prerequisites

• Docker
• Docker Compose
• Dokku
• yq (YAML processor)
• Bash 4.0+

Development Setup

# Clone the repository
git clone <repository-url>
cd dokku-docker-compose

# Install development dependencies
make setup

# Run tests
make test

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests
5. Submit a pull request

License

[Specify License]