W0519 02:54:44.459663       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0519 02:54:44.460300       1 kube-rbac-proxy.go:235] Valid token audiences: 
I0519 02:54:44.461850       1 kube-rbac-proxy.go:349] Reading certificate files
I0519 02:54:44.462248       1 kube-rbac-proxy.go:397] Starting TCP socket on :8443
I0519 02:54:44.463000       1 kube-rbac-proxy.go:404] Listening securely on :8443