W0422 19:19:54.669703       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 19:19:54.670434       1 kube-rbac-proxy.go:235] Valid token audiences: 
I0422 19:19:54.672197       1 kube-rbac-proxy.go:349] Reading certificate files
I0422 19:19:54.672503       1 kube-rbac-proxy.go:397] Starting TCP socket on :8443
I0422 19:19:54.672734       1 kube-rbac-proxy.go:404] Listening securely on :8443