W0417 22:54:52.240268       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0417 22:54:52.240755       1 kube-rbac-proxy.go:233] Valid token audiences: 
I0417 22:54:52.241974       1 kube-rbac-proxy.go:347] Reading certificate files
I0417 22:54:52.242242       1 kube-rbac-proxy.go:395] Starting TCP socket on :8443
I0417 22:54:52.242508       1 kube-rbac-proxy.go:402] Listening securely on :8443