RabbitMq docker-compose file with automatic default user guest creation and mqtt

rabbitmq-docker-compose.yml

version: "3.8"
services:
  rabbitmq:
    image: rabbitmq:4.0.3-management
    container_name: rabbitmq_rpa
    hostname: rmq
    restart: always
    command: >
      bash -c '
        rabbitmq-server &
        sleep 10 &&
        if ! rabbitmqctl list_users | grep -q guest; then
          rabbitmqctl add_user guest guest &&
          rabbitmqctl set_user_tags guest monitoring;
        fi &&
        rabbitmq-plugins enable rabbitmq_web_mqtt &&
        wait
      '
    ports:
      - 5672:5672
      - 1883:1883 # mqtt
      - 15672:15672 # web interface
    volumes:
      - ./data/:/var/lib/rabbitmq/
      - ./log/:/var/log/rabbitmq
    environment:
      RABBITMQ_DEFAULT_USER: ${rmq_rpa_user}
      RABBITMQ_DEFAULT_PASS: ${rmq_rpa_password}