feat(authentik): Add custom pod labels

[gabe565]

This PR adds podLabels to values.yaml, which lets a user define labels to add to the server and worker pods.

[rissson]

I'm a bit wary to add more stuff that doesn't differentiate between the server and worker deployments.

I'd rather have the top-level podLabels only apply to server pods, and then have worker.podLabels for the worker, like it's done with priorityClassName and worker.priorityClassName. On the other hand, that also makes it confusing as that's not what happens with podAnnotations.

Thoughts @BeryJu?

[BeryJu]

I'm a bit wary to add more stuff that doesn't differentiate between the server and worker deployments.

I'd rather have the top-level podLabels only apply to server pods, and then have worker.podLabels for the worker, like it's done with priorityClassName and worker.priorityClassName. On the other hand, that also makes it confusing as that's not what happens with podAnnotations.

I agree, I think we should be separating this going forward (ideally I would've started having three options common.podLabels, server.podLabels and worker.podLabels, but that would be quite a big change and quite breaking)
We can change podAnnotations in a future release to only apply to either one

[gabe565]

Ha amazing. I also agree, I originally set this up with worker.podLabels and server.podLabels, but decided to make it match podAnnotations for clarity. I'll go ahead and split it up again, while also adding a common key.

I may open another PR afterwards to add server.podAnnotations and worker.podAnnotations, with the existing podAnnotations applying to both so it's not a breaking change.

[rissson]

Superseded by #230