zookeeper docker-compose 集群

version: '3.7'

# 给zk集群配置一个网络，网络名为zk-net
networks: 
  zk-net:
    name: zk-net

# 配置zk集群的
# container services下的每一个子配置都对应一个zk节点的docker container
services: 
  zk1:
    image: zookeeper
    hostname: zk1
    container_name: zk1
    ports: 
      - 2181:2181
      - 8081:8080
    environment: 
      # 当前zk实例的id
      ZOO_MY_ID: 1
      # 整个zk集群的机器、端口列表
      ZOO_SERVERS: server.1=0.0.0.0:2888:3888;2181 server.2=zk2:2888:3888;2181 server.3=zk3:2888:3888;2181
    # 将docker container上的路径挂载到宿主机上 实现宿主机和docker container的数据共享
    volumes: 
      - ./zk1/data:/data
      - ./zk1/datalog:/datalog
    # 当前docker container加入名为zk-net的隔离网络
    networks: 
      - zk-net

  zk2:
    image: zookeeper
    hostname: zk2
    container_name: zk2
    ports: 
      - 2182:2181
      - 8082:8080
    environment: 
      ZOO_MY_ID: 2
      ZOO_SERVERS: server.1=zk1:2888:3888;2181 server.2=0.0.0.0:2888:3888;2181 server.3=zk3:2888:3888;2181
    volumes: 
      - ./zk2/data:/data
      - ./zk2/datalog:/datalog
    networks: 
      - zk-net
  
  zk3:
    image: zookeeper
    hostname: zk3
    container_name: zk3
    ports:
      - 2183:2181
      - 8083:8080
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1=zk1:2888:3888;2181 server.2=zk2:2888:3888;2181 server.3=0.0.0.0:2888:3888;2181
    volumes:
      - ./zk3/data:/data
      - ./zk3/datalog:/datalog
    networks:
      - zk-net