option to change hostname for docker containers

in the loader log the HOST is populated based on hostname (not sure of the call being made). A docker container will have a UUID (like 22cc795147eb) as the hostname which is not a useful host name since it will change each time a container is started.

I am asking for an option (maybe not just for the loader) to use an alternative file as the hostname. For example: if i map the host /etc/hostname into the container /etc/hostname and then configure grouper to use /etc/hostname as the hosts name, then the real hostname will be used instead of the container.