W0421 03:05:37.128292       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0421 03:05:37.128963       1 kube-rbac-proxy.go:235] Valid token audiences: 
I0421 03:05:37.130352       1 kube-rbac-proxy.go:349] Reading certificate files
I0421 03:05:37.130624       1 kube-rbac-proxy.go:397] Starting TCP socket on :9154
I0421 03:05:37.130865       1 kube-rbac-proxy.go:404] Listening securely on :9154