Docker Compose up dry-run on CI

[wfehrnstrom]

We need to build in a way to run the full production build for a certain amount of time in our CI tooling without being too brittle i.e. exiting before the production build has finished setting up or running for an excessive amount of time after CI already has demonstrated that the prod build works. A proposal for a dry-run flag in docker-compose is open: docker/compose#1203.

Other workarounds are welcome.