W0312 16:08:08.049635       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0312 16:08:08.050075       1 kube-rbac-proxy.go:235] Valid token audiences: 
I0312 16:08:08.051195       1 kube-rbac-proxy.go:349] Reading certificate files
I0312 16:08:08.051428       1 kube-rbac-proxy.go:397] Starting TCP socket on :8443
I0312 16:08:08.051633       1 kube-rbac-proxy.go:404] Listening securely on :8443