Avoid modifying the upstream compose file and track our overrides which
handle the container build using SUSE BCI base images, the loading of
environment variables from a canonical location, and the disabling of
the integrated database service.
A Traefik reverse proxy to handle TLS termination is added as well.
Signed-off-by: Georg Pfuetzenreuter <georg.pfuetzenreuter@suse.com>