docker-compose.yml

version: '3'

services:
  db:
    image: mysql:8.0
    restart: always
    env_file:
      - ./mysql/.env # 使用了环境变量文件
    volumes:
      - db_vol:/var/lib/mysql:rw # 挂载数据库数据, 可读可写
      - ./mysql/my.cnf:/etc/mysql/my.cnf # 挂载配置文件
      - ./mysql/init.sql:/docker-entrypoint-initdb.d/init.sql # 挂载数据初始化sql脚本
    ports:
      - "3307:3306"
    networks:
      - db_network
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
      timeout: 20s
      retries: 10
  web:
    build:
      context: ./frontend/
    volumes:
      - ./frontend:/app
    networks:
      - db_network
      - nginx_network
  # 备份服务
  backup:
    image: alpine:latest  # 使用更轻量的 alpine 镜像
    restart: always
    depends_on:
      db:
        condition: service_healthy
    volumes:
      - ./backups:/backups:rw
      - ./scripts/backup.sh:/scripts/backup.sh:rw
      - ./scripts/backup-entrypoint.sh:/backup-entrypoint.sh:rw
    networks:
      - db_network
    # 创建独立的启动脚本
    command: ["/bin/sh", "/backup-entrypoint.sh"]
    env_file:
    - ./mysql/.env  # 使用相同的环境变量文件
  backend:
    build: ./django
    restart: always
    volumes:
      - ./django:/app:rw
      - ./uwsgi:/tmp
    depends_on:
      - db
    networks:
      - db_network
      - nginx_network
    ports:
      - "8000:8000"
  nginx:
    build: ./nginx
    ports:
      - "8081:8080"
      - "443:443"
    expose:
      - "80"
    volumes:
      - ./nginx/nginx.conf:/etc/nginx/conf.d/nginx.conf # 挂载nginx配置文件
      - ./nginx/log:/var/log/nginx # 挂载日志
      - ./frontend:/usr/share/nginx/html # 挂载静态文件
      - ./django/media:/usr/share/nginx/html/media:ro # 挂载 Django 媒体文件（只读）
    networks:
      - nginx_network
    depends_on:
      - web
      - backend
    restart: always


networks: # 自定义网络(默认桥接), 不使用links通信
  db_network:
    driver: bridge
  nginx_network:
    driver: bridge
volumes: # 自定义数据卷
  db_vol: #定义数据卷同步存放容器内mysql数据