no automatic testing of Debian/Ubuntu packages
- that the included example config files can actually be parsed and the respective
osmo-*programs can be started with them
- that the included example configs are compatible, i.e. if all example configs are used, the resulting network is functional
If we include systemd service files, one could also check if the processes are properly started by them.
Ideally the resulting test (however it may look like) would be automatically executed every night after rebuilding the latest and nightly package feeds. I think it's sufficient (for now) to test on one distribution, i.e. Debian 9. It probably makes sense to start from a clean install each time, which could e.g. be achieved by debootstrap or (faster) a Dockerfile which uses a debian minimal install as base image/layer.