Comment 0 for bug 1815469

Based on https://bugs.launchpad.net/charm-gcp-integrator/+bug/1815034 and https://discourse.jujucharms.com/t/blocker-deploying-cdk-on-manual-deployment/582 it seems there are conditions which can allow some or all of the services to attempt to start without the relevant config files having been written. This can lead to misleading status messages and errors in the logs, hindering debugging. We need to detect if start_master has not been called, and avoid attempting to start the services as well as reporting it as such in the status.