W0424 12:19:36.653670    2820 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0424 12:19:36.653735    2820 kube-rbac-proxy.go:532] Reading config file: /etc/kube-rbac-proxy/config-file.yaml
I0424 12:19:36.655598    2820 kube-rbac-proxy.go:235] Valid token audiences: 
I0424 12:19:36.656803    2820 kube-rbac-proxy.go:349] Reading certificate files
I0424 12:19:36.657383    2820 kube-rbac-proxy.go:397] Starting TCP socket on 0.0.0.0:9001
I0424 12:19:36.658004    2820 kube-rbac-proxy.go:404] Listening securely on 0.0.0.0:9001