Default to current project when using docker-compose

[kgiglia]

We use this image alongside a couple others via docker-compose, and our config for every job currently has to include "project": "project-name".

Could project default to the name of the project that the Cron container is a part of?

I know the project name can be determined with something like the following from within the Cron container:

docker inspect -f '{{index .Config.Labels "com.docker.compose.project"}}' $HOSTNAME