version: '3'

services:
  zoo1:
    image: zookeeper
    restart: always
    hostname: zoo1
    ports:
      - 2181:2181
    environment:
      ZOO_MY_ID: 1
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181

  zoo2:
    image: zookeeper
    restart: always
    hostname: zoo2
    ports:
      - 2182:2181
    environment:
      ZOO_MY_ID: 2
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181

  zoo3:
    image: zookeeper
    restart: always
    hostname: zoo3
    ports:
      - 2183:2181
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181

1. 以交互方式进入：docker exec -it zookeeper_zoo3_1 bash
2. 查看当前目录：pwd
3. 进入zookeeper的bin： cd bin/
4. 查看是否有zkServer.sh文件，如果有，则执行：./zkServer.sh status
5. 查看Mode的类型：leader为主节点，follower为从节点
6. 
7. 如果为以上图所示，则启动成功

1. 执行 ./zkCli.sh -server localhost:2181
2. 连接成功后，创建节点：create /test "hello lzf"
3. 获取创建的节点：get /test
4. 删除创建的节点：delete /test