W0427 11:55:12.428950       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0427 11:55:12.429588       1 kube-rbac-proxy.go:233] Valid token audiences: 
I0427 11:55:12.431021       1 kube-rbac-proxy.go:347] Reading certificate files
I0427 11:55:12.431296       1 kube-rbac-proxy.go:395] Starting TCP socket on :9154
I0427 11:55:12.431488       1 kube-rbac-proxy.go:402] Listening securely on :9154