DockerCompose搭建Zookeeper集群

一、前提条件

以下所有操作会使用docker-compose来进行服务编排，前提需要安装Docker，安装教程如下：

Docker安装教程（视频+图文）

二、安装Docker Compose

兼容性请参考官方：https://docs.docker.com/compose/compose-file/

更多Compose File请参考官方：https://docs.docker.com/compose/compose-file/

下载最新稳定版的Docker Compose

[[email protected] ~]$ sudo curl -L "https://github.com/docker/compose/releases/download/1.25.5/docker-compose-$(uname -s)-$(uname -m)" -o /opt/moudle/docker-compose

添加可执行权限

[[email protected] ~]$ sudo chmod +x /opt/moudle/docker-compose

做一个软链接：

[[email protected] ~]$ sudo ln -s /opt/moudle/docker-compose /usr/bin/docp

三、拉取镜像并编写docker-compose.yml

[[email protected] ~]$ sudo docker pull zookeeper:3.5.7

创建docker-compose.yml文件：

文件下载地址：https://github.com/xiaokangxxs/notebook/tree/master/docs/BigData/Docker/yaml

# 指定 compose 文件的版本
version: "3.8"
# 指定服务
services:
        zoo1:
                # 指定镜像名称或镜像ID
                image: 4e6f2f153ac8
                # 给容器设置标签
                labels:
                	- "desc=This is 3 node zookeeper-cluster"
                    - "author=xiaokang"
                    - "date=2020-04-21 19:20:11"
                # 容器将始终重新启动
                restart: always
                # 主机名
                hostname: zoo1
                # 特权模式(能使用systemctl)
                privileged: true
                # 指定容器的名称 (等同于 docker run --name 的作用)
                container_name: zoo1
                networks:
                    xiaokang_net:
                        ipv4_address: 172.24.11.5
                ports:
                        - 2181:2181
                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
        zoo2:
                image: 4e6f2f153ac8
                restart: always
                hostname: zoo2
                privileged: true
                container_name: zoo2
                networks:
                    xiaokang_net:
                        ipv4_address: 172.24.11.6
                ports:
                        - 2182:2181
                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
        zoo3:
                image: 4e6f2f153ac8
                restart: always
                hostname: zoo3
                privileged: true
                container_name: zoo3
                networks:
                    xiaokang_net:
                        ipv4_address: 172.24.11.7
                ports:
                        - 2183:2181
                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
networks:
  xiaokang_net:
    ipam:
      driver: default
      config:
        - subnet: "172.24.11.0/24"

四、验证

[[email protected] docker_teach]$ sudo docp exec zoo1 ./bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower

[[email protected] docker_teach]$ sudo docp exec zoo2 ./bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower

[[email protected] docker_teach]$ sudo docp exec zoo3 ./bin/zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: leader