How should logging be handled

[ehelms]

This is to track how we should think about handling logging. The normal Foreman installation uses a variety of journal and independent log files across the various services. The cloud-native model is to log to stdout and let the container tooling incorporate that into the journal or whatever log driver is chosen.

[ekohl]

Foreman supports RAILS_LOG_TO_STDOUT to log to stdout and in the shipped Dockerfile this is set. Should we do the same here?