Mikkel Georgsen
389fae97f8
Tasks completed: 2/2 - Set up PostgreSQL with Docker and async session factory - Configure Alembic and create Build model SUMMARY: .planning/phases/01-core-infrastructure-security/01-02-SUMMARY.md
114 lines
3.8 KiB
Markdown
114 lines
3.8 KiB
Markdown
---
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phase: 01-core-infrastructure-security
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plan: 02
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subsystem: database
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tags: [postgresql, sqlalchemy, alembic, asyncpg, docker]
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# Dependency graph
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requires:
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- phase: 01-01
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provides: FastAPI project structure, pydantic-settings configuration
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provides:
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- PostgreSQL database with Docker container
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- Async SQLAlchemy session factory with connection pooling
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- Alembic migration infrastructure for async
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- Build model for tracking ISO generation jobs
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affects: [01-03, 01-04, 01-05, 02, 03]
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# Tech tracking
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tech-stack:
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added: [postgresql:16-alpine, asyncpg, alembic]
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patterns: [async-session-management, connection-pooling, uuid-primary-keys]
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key-files:
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created:
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- backend/app/db/session.py
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- backend/app/db/base.py
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- backend/app/db/models/build.py
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- backend/alembic/env.py
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- docker-compose.yml
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modified:
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- .env.example
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key-decisions:
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- "Use port 5433 for PostgreSQL to avoid conflict with existing postgres containers"
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- "Connection pool: pool_size=10, max_overflow=20, pool_recycle=1800 (from research)"
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- "Build model uses UUID primary key and SHA-256 config_hash for caching"
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patterns-established:
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- "Async session factory pattern with get_db() dependency"
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- "Alembic async migrations using asyncio.run()"
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- "Models inherit from DeclarativeBase and are imported in env.py"
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# Metrics
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duration: 6min
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completed: 2026-01-25
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---
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# Phase 1 Plan 2: PostgreSQL Database Setup Summary
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**PostgreSQL 16 with async SQLAlchemy session factory, Alembic migrations, and Build tracking model**
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## Performance
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- **Duration:** 6 min
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- **Started:** 2026-01-25T20:06:20Z
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- **Completed:** 2026-01-25T20:12:01Z
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- **Tasks:** 2
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- **Files modified:** 13
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## Accomplishments
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- PostgreSQL 16 running in Docker container with health checks (port 5433)
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- Async SQLAlchemy engine with production-grade connection pooling
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- Alembic configured for async migrations with autogenerate support
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- Build model created with UUID primary key, status enum, and indexes
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: Set up PostgreSQL with Docker and async session factory** - `fbcd2bb` (feat)
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2. **Task 2: Configure Alembic and create Build model** - `c261664` (feat)
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## Files Created/Modified
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- `docker-compose.yml` - PostgreSQL 16 container configuration (port 5433)
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- `backend/app/db/session.py` - Async engine and session factory with pooling
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- `backend/app/db/base.py` - SQLAlchemy 2.0 DeclarativeBase
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- `backend/app/db/__init__.py` - Database package exports
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- `backend/app/db/models/build.py` - Build tracking model with status enum
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- `backend/app/db/models/__init__.py` - Models package exports
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- `backend/alembic.ini` - Alembic configuration
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- `backend/alembic/env.py` - Async migration environment
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- `backend/alembic/versions/de1460a760b0_create_build_table.py` - Initial migration
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- `.env.example` - Updated DATABASE_URL to port 5433
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## Decisions Made
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1. **Port 5433 instead of 5432** - Another PostgreSQL container was using port 5432; used 5433 to avoid conflict
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2. **Connection pooling settings** - Applied research recommendations: pool_size=10, max_overflow=20, pool_recycle=1800, pool_pre_ping=True
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3. **Build model design** - UUID primary key for security, config_hash for deterministic caching, status enum for queue management
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## Deviations from Plan
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None - plan executed exactly as written.
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## Issues Encountered
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- Port 5432 was already allocated by another postgres container (moai-postgres)
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- Resolution: Changed to port 5433 in docker-compose.yml and updated all configurations
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## User Setup Required
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None - no external service configuration required.
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## Next Phase Readiness
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- Database infrastructure complete and running
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- Ready for 01-03-PLAN.md (Security middleware)
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- Build model available for queue and worker implementation in Phase 3
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---
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*Phase: 01-core-infrastructure-security*
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*Completed: 2026-01-25*
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