Jibri SIP Gateway in Docker Setup

Hello. I’m trying to configure a dockerized Jibri to act as the SIP gateway. How can I add sip-control-muc parameter to the jibri.conf? I’ve tried mounting a directory with the edited jibri.conf, but the docker overrides it on start. Is there an .env variable I’m missing?

The current Docker image is not really ready for acting as a SIP gateway. All configuration is missing.