anchor.diff:    *_AMQ_HOME/opt/user.properties_* file. If no value is specified, a random
     password is generated.
   `*AMQ_ADMIN_USERNAME*`::
  -  The username used as an admin authentication to the broker. If no value is specified, a random user name is generated.
  +  The user name used as an admin authentication to the broker. If no value is specified, a random user name is generated.
   `*AMQ_ADMIN_PASSWORD*`::
     The password used for authentication to the broker. If no value is specified, a random password is generated.
   `*AMQ_SECRET*`::
  
positive.code:   Comma-separated list of topics available by default on the broker on its
    startup.
  `*VOLUME_CAPACITY*`::
    The size of the persistence storage for database volumes. 
  `*MQ_USERNAME*`::
    The user name used for authentication to the broker. In a standard
    non-containerized JBoss A-MQ, you would specify the user name in the
  
negative.code:   *_AMQ_HOME/opt/user.properties_* file. If no value is specified, a random
    password is generated.
  `*AMQ_ADMIN_USERNAME*`::
    The user name used as an admin authentication to the broker. If no value is specified, a random user name is generated.
  `*AMQ_ADMIN_PASSWORD*`::
    The password used for authentication to the broker. If no value is specified, a random password is generated.
  `*MQ_PROTOCOL*`::
  