Fair share

[innovate-invent]

Jobs can be scheduled with a criteria that makes them always unscheduable. A service that polls the docker swarm/k8s queue for new jobs can then take the scheduling user and other metadata from the job and remove the unscheduable criteria based on fair share.
Once the jobs are complete, Galaxy can be told not to delete the job. This service can then collect CPU times and any other metrics before cleaning up the job.

This is ideally separate from the Galaxy job-runner so that it can be re-used by other project potentially not using Galaxy, or across multiple Galaxy instances.