New Requirement Label & Worker restriction

[yesnault]

example: User add a label foo on Job Requirement User run a worker with worker --restriction=label:foo --restriction=binary:go

cc @gwleclerc

[fsamin]

i don't understand the use case ? @gwleclerc have you got some details ?

[doron-cohen]

Hi, I can provide with one. We are running CDS hatcheries on a multiple kubernetes clusters in AWS across regions. Some of the jobs can run in any of the regions but some of the jobs we prefer to run in a specific region. Today we need to define groups for that. We prefer to manage it using labels and have it more flexible. Also, I think it makes job dispatching more powerful. You can look at Nomad's affinity feature which allows you to route jobs to different workers based on conditions https://www.nomadproject.io/docs/job-specification/affinity.html