[Bug]: KubeStatefulSetUpdateNotRolledOut many-to-many matching not allowed

[sebastiangaiser]

What happened?

Hey, during draining/rebooting nodes, I got msg="Evaluating rule failed" with many-to-many matching not allowed: matching labels must be unique on one side" for name=KubeStatefulSetUpdateNotRolledOut.

The only difference for the labels I could identify are:

instance="10.24.6.180:8080", pod="kube-state-metrics-558bb6b875-d78dr"}
instance="10.24.12.189:8080", pod="kube-state-metrics-784968c8d7-rcrl4"}

I think this is because kube-state-metrics was restarted during the node drain.
My proposal would be excluding the instance and pod label.

Please provide any helpful snippets.

What parts of the codebase are affected?

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