W0516 02:57:36.749269       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0516 02:57:36.749685       1 kube-rbac-proxy.go:233] Valid token audiences: 
I0516 02:57:36.751578       1 kube-rbac-proxy.go:347] Reading certificate files
I0516 02:57:36.751820       1 kube-rbac-proxy.go:395] Starting TCP socket on :8443
I0516 02:57:36.752064       1 kube-rbac-proxy.go:402] Listening securely on :8443