Initial smoke tests

So once the archiver has been installed it's a good idea to check that the services started as expected. This commit adds permanent smoke tests to the playbook. Every time we run the playbook we expect the service to be up afterwards.

The tricky part is to be generic enough that test cases work both in production as well as in local molecule testing without a database present. So some conditions were applied to the individual tests.

Todo: add mariadb check