The docker-compose file starts an OBS instance (on 15.0 atm) and runs
the test suite in a test container (tumbleweed), so all tests run in
an isolated environment accessing OBS at api:3000
The default user is Admin:opensuse and the docker compose opens
only one port at 3737 running the api/webui
This can be used for CI on sources or to build against it with osc
(if you add interconnect project), but it won't build packages
