sudo systemctl enable rabbitmq-server
sudo systemctl start rabbitmq-server
sudo systemctl stop rabbitmq-server

sudo rabbitmqctl add_user admin admin
sudo rabbitmqctl set_user_tags admin administrator
sudo rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"

sudo rabbitmq-plugins enable rabbitmq_management

xiaobin112@ubuntu:~$ sudo rabbitmq-plugins enable rabbitmq_management
The following plugins have been configured:
  rabbitmq_management
  rabbitmq_management_agent
  rabbitmq_web_dispatch
Applying plugin configuration to rabbit@ubuntu...
The following plugins have been enabled:
  rabbitmq_management
  rabbitmq_management_agent
  rabbitmq_web_dispatch

started 3 plugins.