【微服务架构 - 17 - Zookeeper】01 基于 Docker 安装 Zookeeper

系统管理员 2022-03-10 12:48 215阅读 0赞

## 伪集群模式 ##

### docker-compose.yml ###

version: '3.1'
    services:
        zoo1:
            image: zookeeper
            restart: always
            hostname: zoo1
            ports:
                - 2181:2181
            environment:
                ZOO_MY_ID: 1
                ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888
    
        zoo2:
            image: zookeeper
            restart: always
            hostname: zoo2
            ports:
                - 2182:2181
            environment:
                ZOO_MY_ID: 2
                ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888
    
        zoo3:
            image: zookeeper
            restart: always
            hostname: zoo3
            ports:
                - 2183:2181
            environment:
                ZOO_MY_ID: 3
                ZOO_SERVERS: server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 server.3=zoo3:2888:3888

## 验证是否安装成功 ##

*  分别以交互式方式进入容器

docker exec -it zookeeper_zoo1_1 /bin/bash

docker exec -it zookeeper_zoo2_1 /bin/bash

docker exec -it zookeeper_zoo3_1 /bin/bash

*  使用服务端工具检查服务器状态

root@Ubuntu:/usr/local/docker/zookeeper# docker exec -it zookeeper_zoo1_1 /bin/bash
    bash-4.3# ./bin/zkServer.sh status
    ZooKeeper JMX enabled by default
    Using config: /conf/zoo.cfg
    Mode: follower

root@Ubuntu:/usr/local/docker/zookeeper# docker exec -it zookeeper_zoo2_1 /bin/bash
    bash-4.3# ./bin/zkServer.sh status
    ZooKeeper JMX enabled by default
    Using config: /conf/zoo.cfg
    Mode: follower

root@UbuntuBase:/usr/local/docker/zookeeper# docker exec -it zookeeper_zoo3_1 /bin/bash
    bash-4.3# ./bin/zkServer.sh status
    ZooKeeper JMX enabled by default
    Using config: /conf/zoo.cfg
    Mode: leader

从上面的验证结果可以看出：zoo1 为跟随者，zoo2 为跟随者，zoo3 为领导者