kube-scheduler not scheduling pods due to client certificate not renewed automatically in OpenShift 4

Solution Verified - Updated -

Issue

  • How to renew the kube-scheduler client certificate if it is not automatically rotated?

  • What to do when pods remain in Pending status and kube-scheduler log shows errors like:

    k8s.io/kubernetes/cmd/kube-scheduler/app/server.go:246: Failed to list *v1.Pod: Unauthorized

vendor/k8s.io/client-go/informers/factory.go:134: Failed to watch *v1.Pod: failed to list *v1.Pod: Unauthorized

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4

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