docker-compose搭建zookeeper集群

1. 编写docker-compose.yml

version: '2'
services:
    zoo1:
        image: zookeeper:3.7.1
        restart: always
        container_name: 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:3.7.1
        restart: always
        container_name: 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:3.7.1
        restart: always
        container_name: 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

2. 启动zookeeper集群

COMPOSE_PROJECT_NAME=zk_cluster docker-compose up -d

3. 查看zookeeper集群

COMPOSE_PROJECT_NAME=zk_cluster docker-compose ps

4. 从外部执行命令

docker exec -it zoo1 zkServer.sh status
docker exec -it zoo2 zkServer.sh status
docker exec -it zoo3 zkServer.sh status