services:
  postgres:
    image: postgres:16-alpine
    container_name: metadata-postgres
    environment:
      POSTGRES_USER: metadata
      POSTGRES_PASSWORD: metadata
      POSTGRES_DB: metadata
    ports:
      - "5432:5432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
      - ./migrations:/docker-entrypoint-initdb.d:ro
      - ./postgresql.conf:/etc/postgresql/postgresql.conf:ro
    command: postgres -c config_file=/etc/postgresql/postgresql.conf
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U metadata -d metadata"]
      interval: 5s
      timeout: 5s
      retries: 5

volumes:
  postgres_data: