首先去这里下载https://github.com/apache/rocketmq-externals

帮助文档在这https://github.com/apache/rocketmq-externals/tree/master/rocketmq-docker

官方文档已经很清晰的教给怎么用docker部署了

先创建目录/home/data/rocketmq，broker.conf还有docker-compose.yml放在该目录下

ps 这一步可以跳过,可以用docker-compose.yml直接下载镜像

拉下来代码后 
进入/home/rocketmq-externals-master/rocketmq-docker/image-build
执行 sh build-image.sh RMQ-4.3.0     这里是RMQ-版本
然后返回上一级
执行  sh stage.sh 4.3.0     后边这个是版本，这个命令会在stage目录下生成4.3.0/templates两个目录

进入 /home/rocketmq-externals-master/rocketmq-docker/stages/4.3.0/templates
单节点的话执行./play-docker.sh  命令
集群部署 官方文档也给了说明
这个命令会下载相关镜像

接下来我们来编写docker-rocketmq-compose.yml 文件

 vi docker-rocketmq-compose.yml 
 
version: '3.5'
services:
  rmqnamesrv:
    image: rocketmqinc/rocketmq:4.3.0
    container_name: rmqnamesrv
    ports:
      - 9876:9876
    volumes:
      - /opt/logs:/opt/logs
      - /opt/store:/opt/store
    command: sh mqnamesrv
    networks:
        rmq:
          aliases:
            - rmqnamesrv
  rmqbroker:
    image: rocketmqinc/rocketmq:4.3.0
    container_name: rmqbroker
    ports:
      - 10909:10909
      - 10911:10911
    volumes:
      - /opt/logs:/opt/logs
      - /opt/store:/opt/store
      - /home/data/rocketmq/broker.conf:/opt/rocketmq-4.3.0/conf/broker.conf 
    environment:
        TZ: Asia/Shanghai
        NAMESRV_ADDR: "rmqnamesrv:9876"
        JAVA_OPTS: " -Duser.home=/opt"
        JAVA_OPT_EXT: "-server -Xms512m -Xmx512m -Xmn512m"
    command: sh mqbroker rmqnamesrv:9876 -c /opt/rocketmq-4.3.0/conf/broker.conf  autoCreateTopicEnable=true
    depends_on:
      - rmqnamesrv
    networks:
      rmq:
        aliases:
          - rmqbroker
  rmqconsole:
    image: styletang/rocketmq-console-ng
    container_name: rmqconsole
    ports:
      - 9001:8080
    environment:
        JAVA_OPTS: "-Drocketmq.namesrv.addr=rmqnamesrv:9876 -Dcom.rocketmq.sendMessageWithVIPChannel=true"
    depends_on:
      - rmqnamesrv
    networks:
      rmq:
        aliases:
          - rmqconsole
networks:
  rmq:
    name: rmq
    driver: bridge

创建broker.conf，用来替换镜像里的broker.conf

brokerClusterName = DefaultCluster
brokerName = broker-a
brokerId = 0
brokerIP1=外网ip
brokerIP2=外网ip
deleteWhen = 04
fileReservedTime = 48
brokerRole = ASYNC_MASTER
flushDiskType = ASYNC_FLUSH
autoCreateTopicEnable=true

执行 docker-compose -f docker-rocketmq-compose.yml up -d

这个命令会自动运行容器镜像

控制台可能会有问题，消费者 版本会显示HigherVersion，但是可以正常消费