We were running docker exec for a number of deployment status checks. As
we look forward to switching to docker compose over docker-compose
container names are expected to change which makes using docker exec a
bit painful in a backward and forward compatible manner. Instead we can
use docker-compose to interact with the containers using their logical
names and have it map to the correct container for us.
Change-Id: Id078ba8952acfea525d6633c7fbc88b11a9a03b8
6b2bb4a3a9