remove second CA used for kubelet auth in favor of webhook auth

cluster/addons/rbac/apiserver-node-proxy-binding.yaml

@@ -0,0 +1,14 @@
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRoleBinding
+metadata:
+  name: apiserver-node-proxy
+  labels:
+    kubernetes.io/cluster-service: "true"
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: node-proxy
+subjects:
+- apiVersion: rbac/v1beta1
+  kind: User
+  name: kube-apiserver

cluster/addons/rbac/node-proxy-role.yaml

@@ -0,0 +1,23 @@
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  name: node-proxy
+  labels:
+    kubernetes.io/cluster-service: "true"
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - nodes/proxy
+  verbs:
+  - create
+  - get
+- apiGroups:
+  - ""
+  resources:
+  - nodes/log
+  - nodes/stats
+  - nodes/metrics
+  - nodes/spec
+  verbs:
+  - get