W0422 23:37:47.265736       1 deprecated.go:66] 
==== Removed Flag Warning ======================

logtostderr is removed in the k8s upstream and has no effect any more.

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I0422 23:37:47.266252       1 kube-rbac-proxy.go:235] Valid token audiences: 
I0422 23:37:47.267480       1 kube-rbac-proxy.go:349] Reading certificate files
I0422 23:37:47.267770       1 kube-rbac-proxy.go:397] Starting TCP socket on :9154
I0422 23:37:47.268090       1 kube-rbac-proxy.go:404] Listening securely on :9154