Run the prod publishing-bot as a periodic job

[nikhita]

kubernetes/test-infra#29118 added a presubmit to run a dry-run of the bot.

We should do something similar to create a periodic job to run the prod bot. That will allow us to have testgrid integrations, easy access to logs and a multitude of other benefits.

[akhilerm]

/assign

[ameukam]

we will need at least:

• a Github token
• a dedicated volume in the build cluster or a ephemeral one on each run.

[akhilerm]

@ameukam Is it possible to get a persistent volume on the build cluster ?

[ameukam]

@akhilerm Yes. I'll work on that this week. Any suggestion about size for the PV ? we can start with 50 GB ?

[akhilerm]

yep. that would work. The current production instance uses 100Gi volume as mentioned in https://github.com/kubernetes/publishing-bot/blob/master/artifacts/manifests/pvc.yaml#L4

[akhilerm]

@ameukam Gentle reminder to look into this issue for getting PV in test infra

[sayanchowdhury]

we will need at least:

• a Github token
• a dedicated volume in the build cluster or a ephemeral one on each run.

@ameukam we would also need new secret with a Github token in the k8s.io, right? Should I file a PR for that in the k8s.io repo?