fastapi-template/docker-compose.yml at main · MariusVinaschi/fastapi-template · GitHub

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version: "3.9"

networks:
  prefect_network:
    external: true
    name: prefect_network
  app_network:
    name: app_network
    driver: bridge

services:
  # =============================================================================
  # Infrastructure - Database
  # =============================================================================
  dbapp:
    image: postgres:17
    container_name: dbapp
    restart: always
    env_file:
      - .env
    environment:
      POSTGRES_DB: ${APP_DB_NAME}
      POSTGRES_USER: ${APP_DB_USER}
      POSTGRES_PASSWORD: ${APP_DB_PASSWORD}
    ports:
      - "5432:5432"
    volumes:
      - app_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${APP_DB_USER} -d ${APP_DB_NAME}"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s
    networks:
      - app_network

  # =============================================================================
  # Migrations - Database schema management
  # =============================================================================
  migrations:
    build:
      context: .
      dockerfile: dockerfile
      target: migrations
    container_name: migrations
    env_file:
      - .env
    depends_on:
      dbapp:
        condition: service_healthy
    command: alembic upgrade head
    restart: "no"
    networks:
      - app_network

  # =============================================================================
  # API - FastAPI HTTP server
  # =============================================================================
  api:
    build:
      context: .
      dockerfile: dockerfile
      target: api
    container_name: fastapi-api
    env_file:
      - .env
    ports:
      - "8000:80"
    depends_on:
      dbapp:
        condition: service_healthy
      migrations:
        condition: service_completed_successfully
    restart: always
    networks:
      - app_network
    healthcheck:
      test: ["CMD", "python", "-c", "import requests; requests.get('http://localhost/api/v1/health/', timeout=5)"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s


  # =============================================================================
  # Prefect Worker - Managed by Prefect server
  # =============================================================================
  prefect-worker:
    image: prefecthq/prefect:3-latest
    container_name: prefect-worker
    environment:
      PREFECT_API_URL: ${PREFECT_API_URL}
      WORK_POOL_NAME: ${WORK_POOL_NAME}
      PREFECT_API_AUTH_STRING: "${PREFECT_LOGIN_USER}:${PREFECT_LOGIN_PASSWORD}"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    depends_on:
      dbapp:
        condition: service_healthy
      migrations:
        condition: service_completed_successfully
    networks:
      - prefect_network  # Access to Prefect server
      - app_network       # Access to application database
    entrypoint:
      ["/bin/sh", "-c", "pip install -q prefect-docker && prefect worker start --pool ${WORK_POOL_NAME} --type docker"]
    restart: unless-stopped

volumes:
  app_data: