version: '3.8'
services:
  # ETCD 分布式键值存储
  etcd:
    image: quay.io/coreos/etcd:v3.5.4
    container_name: etcd
    ports:
      - "2379:2379"  # 客户端连接端口
      - "2380:2380"  # 节点通信端口
    environment:
      ETCD_LISTEN_CLIENT_URLS: "http://0.0.0.0:2379"
      ETCD_ADVERTISE_CLIENT_URLS: "http://etcd:2379"
      ETCD_LISTEN_PEER_URLS: "http://0.0.0.0:2380"
      ETCD_INITIAL_ADVERTISE_PEER_URLS: "http://etcd:2380"
      ETCD_NAME: "etcd-single"
      ETCD_INITIAL_CLUSTER: "etcd-single=http://etcd:2380"
      ETCD_INITIAL_CLUSTER_TOKEN: "etcd-cluster"
      ETCD_INITIAL_CLUSTER_STATE: "new"
    volumes:
      - etcd-data:/etcd-data
    networks:
      - app-network

  # Redis 缓存数据库
  redis:
    image: redis:7.0-alpine
    container_name: redis
    ports:
      - "6379:6379"
    volumes:
      - redis-data:/data
    networks:
      - app-network
    command: redis-server --save 60 1 --loglevel warning

  # MySQL 数据库
  mysql:
    image: mysql:8.0
    container_name: mysql
    environment:
      MYSQL_ROOT_PASSWORD: rootpassword  # 请更改为强密码
      MYSQL_DATABASE: app_db
      MYSQL_USER: app_user
      MYSQL_PASSWORD: userpassword      # 请更改为强密码
    ports:
      - "3306:3306"
    volumes:
      - mysql-data:/var/lib/mysql
      - ./mysql-init:/docker-entrypoint-initdb.d  # 初始化SQL脚本目录
    networks:
      - app-network
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
      interval: 5s
      timeout: 10s
      retries: 5

  # ETCD 可视化界面 (Web UI)
  etcd-viewer:
    image: deltaprojects/etcdkeeper:latest
    container_name: etcd-viewer
    ports:
      - "8080:8080"
    environment:
      ETCD_HOST: etcd
      ETCD_PORT: 2379
    networks:
      - app-network
    depends_on:
      - etcd

# 数据卷声明
volumes:
  etcd-data:
  redis-data:
  mysql-data:

# 网络配置
networks:
  app-network:
    driver: bridge