W0507 14:35:52.053648       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0507 14:35:52.054023       1 kube-rbac-proxy.go:233] Valid token audiences: 
I0507 14:35:52.054816       1 kube-rbac-proxy.go:347] Reading certificate files
I0507 14:35:52.055005       1 kube-rbac-proxy.go:395] Starting TCP socket on :8443
I0507 14:35:52.055377       1 kube-rbac-proxy.go:402] Listening securely on :8443