services:
  danbooru-mcp:
    build:
      context: .
      dockerfile: Dockerfile.prebuilt
    image: danbooru-mcp:latest
    container_name: danbooru-mcp
    stdin_open: true   # required — MCP communicates over stdio
    tty: false
    restart: unless-stopped

    environment:
      DANBOORU_TAGS_DB: /app/db/tags.db
      # Log level: DEBUG | INFO | WARNING | ERROR | CRITICAL (default: INFO)
      LOG_LEVEL: ${LOG_LEVEL:-INFO}
      # Log format: "text" (human-readable) | "json" (structured, for log aggregators)
      LOG_FORMAT: ${LOG_FORMAT:-text}

    volumes:
      # Persistent DB volume — survives image rebuilds.
      # On first use, seed with:
      #   docker run --rm \
      #     -v danbooru_db:/target -v $(pwd)/db:/source \
      #     alpine sh -c "cp /source/tags.db /target/"
      - danbooru_db:/app/db

    # Docker logging driver — captures all stderr output from the container.
    # Use "json-file" (default) for local development; switch to "journald"
    # or a remote driver (fluentd, awslogs, etc.) for production.
    logging:
      driver: json-file
      options:
        max-size: "50m"     # rotate when log file reaches 50MB
        max-file: "5"       # keep last 5 rotated files

    read_only: true
    tmpfs:
      - /tmp

volumes:
  danbooru_db:
    driver: local