3个命令
docker pull apache/rocketmq:4.9.0
docker run -d -p 9876:9876 --name rmqnamesrv apache/rocketmq:4.9.0 sh mqnamesrv
docker run -d -p 10911:10911 -p 10909:10909 --name rmqbroker --link rmqnamesrv:namesrv -e "NAMESRV_ADDR=namesrv:9876" apache/rocketmq:4.9.0 sh mqbroker