W0416 12:16:14.120950       1 deprecated.go:66] 
==== Removed Flag Warning ======================

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

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I0416 12:16:14.121628       1 kube-rbac-proxy.go:235] Valid token audiences: 
I0416 12:16:14.123158       1 kube-rbac-proxy.go:349] Reading certificate files
I0416 12:16:14.123543       1 kube-rbac-proxy.go:397] Starting TCP socket on :9154
I0416 12:16:14.123809       1 kube-rbac-proxy.go:404] Listening securely on :9154
E0416 12:25:06.488031       1 auth.go:47] Unable to authenticate the request due to an error: context canceled
E0416 12:25:26.488735       1 webhook.go:154] Failed to make webhook authenticator request: Post "https://172.30.0.1:443/apis/authentication.k8s.io/v1/tokenreviews": context deadline exceeded
E0416 12:25:26.488776       1 auth.go:47] Unable to authenticate the request due to an error: Post "https://172.30.0.1:443/apis/authentication.k8s.io/v1/tokenreviews": context deadline exceeded