W0424 02:57:21.194040       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0424 02:57:21.194517       1 kube-rbac-proxy.go:235] Valid token audiences: 
I0424 02:57:21.195463       1 kube-rbac-proxy.go:349] Reading certificate files
I0424 02:57:21.195738       1 kube-rbac-proxy.go:397] Starting TCP socket on :8443
I0424 02:57:21.196007       1 kube-rbac-proxy.go:404] Listening securely on :8443