Dockerized Quake Master Server. (DQMS) :)
The master server is built from that really old source from http://lasange-system.sourceforge.net/

Klumpp, Paul-Dieter d656079323 UDP ports are now exposed on the host on 0.0.0.0 be careful. Use a fw!		7 lat temu
src	37eb667519 removed constant PTHREADS_THREADS_MAX because it is nowhere defined nowadays	7 lat temu
Dockerfile	d656079323 UDP ports are now exposed on the host on 0.0.0.0 be careful. Use a fw!	7 lat temu
docker-compose.yml	d656079323 UDP ports are now exposed on the host on 0.0.0.0 be careful. Use a fw!	7 lat temu
entrypoint.sh	d656079323 UDP ports are now exposed on the host on 0.0.0.0 be careful. Use a fw!	7 lat temu
run_docker_masterserver.sh	d656079323 UDP ports are now exposed on the host on 0.0.0.0 be careful. Use a fw!	7 lat temu