swarm-部署zookeeper

浅浅的花香味﹌ 2023-07-03 15:26 16阅读 0赞

**前置条件**

安装Docker Engine，并搭建一个swarm集群。[参考文章][Link 1]

**swarm集群创建一个覆盖网络xxl**

//同一个覆盖网络的服务可以通过服务名和ip互相访问，不同的覆盖网络不行
    docker network create -d overlay --scope swarm --subnet 172.22.0.0/16 --gateway 172.22.0.1 xxl

**编写zookeeper.yml配置文件**

version: "3.7"
    networks:
      xxl:
        external: true		//为true表示网络在stack外已经创建，deploy时不用创建
        name: xxl
        driver: overlay
        ipam:
          config:
            - subnet: 172.22.0.0/16
    services:
      zoo1:
        image: zookeeper:3.5.6
        networks:
          - xxl
        volumes:
          - ./zk/data1:/data
          - ./zk/log1:/datalog
        environment:
          ZOO_MY_ID: 1
          ZOO_SERVERS: server.1=0.0.0.0:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181
        deploy:
          replicas: 1
      zoo2:
        image: zookeeper:3.5.6
        networks:
          - xxl
        volumes:
          - ./zk/data2:/data
          - ./zk/log2:/datalog
        environment:
          ZOO_MY_ID: 2
          ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=0.0.0.0:2888:3888;2181 server.3=zoo3:2888:3888;2181
        deploy:
          replicas: 1
        depends_on:		//避免出现错误
          - zoo1
      zoo3:
        image: zookeeper:3.5.6
        networks:
          - xxl
        volumes:
          - ./zk/data3:/data
          - ./zk/log3:/datalog
        environment:
          ZOO_MY_ID: 3
          ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=0.0.0.0:2888:3888;2181
        deploy:
          replicas: 1
        depends_on:
          - zoo2
      zkweb:
        image: tobilg/zookeeper-webui:latest
        networks:
          - xxl
        ports:
          - "2100:2100"
        environment:
          - HTTP_PORT=2100
          - ZK_DEFAULT_NODE=zoo1:2181
          - USER=***
          - PASSWORD=***
        deploy:
          replicas: 1
        depends_on:
          - zoo1
          - zoo2
          - zoo3

**部署服务栈**

//部署
    docke swarm deploy -c zookeeper.yml zk
    //移除
    docker swarm rm zk

**说明**

*  集群中每个节点的状态一致，三个节点完全等价
 *  通过zkServer status查看节点的角色
 *  覆盖网络内，通过zkCli连接每个节点查看信息

[Link 1]: https://blog.csdn.net/ssehs/article/details/104101331