Flowcontrol needs to be allowed in Metrics Server with k8s 0.29.4

[zroubalik]

Proposal

We need to add following RBAC to the Cluster Role used by KEDA Metrics Server:

- apiGroups:
  - flowcontrol.apiserver.k8s.io
  resources:
  - flowschemas
  - prioritylevelconfigurations

To give more info about this role, it allows for setting priority and fairness to requests. It essentially rate limit certain requests in favor of others based on a user defined config. https://kubernetes.io/docs/concepts/cluster-administration/flow-control/

Use-Case

No response

Is this a feature you are interested in implementing yourself?

Yes

Anything else?

No response

[zroubalik]

Fix in charts is missing

[JorTurFer]

This isn't required anymore as they disabled the feature as default (and we won't use it for the moment)