[GCE kube-up] Don't provision kubeconfig file on nodes when kube-proxy run as a DaemonSet

cluster/addons/kube-proxy/kube-proxy-ds.yaml

@@ -37,8 +37,10 @@ spec:
         command:
         - /bin/sh
         - -c
-        - kube-proxy {{kubeconfig}} {{cluster_cidr}} --resource-container="" --oom-score-adj=-998 {{params}} 1>>/var/log/kube-proxy.log 2>&1
-        {{container_env}}
+        - kube-proxy {{cluster_cidr}} --resource-container="" --oom-score-adj=-998 {{params}} 1>>/var/log/kube-proxy.log 2>&1
+        env:
+        - name: KUBERNETES_SERVICE_HOST
+          value: {{kubernetes_service_host_env_value}}
         {{kube_cache_mutation_detector_env_name}}
           {{kube_cache_mutation_detector_env_value}}
         securityContext:
@@ -47,9 +49,6 @@ spec:
         - mountPath: /var/log
           name: varlog
           readOnly: false
-        - mountPath: /var/lib/kube-proxy/kubeconfig
-          name: kubeconfig
-          readOnly: false
         - mountPath: /run/xtables.lock
           name: xtables-lock
           readOnly: false
@@ -57,9 +56,6 @@ spec:
       - name: varlog
         hostPath:
           path: /var/log
-      - name: kubeconfig
-        hostPath:
-          path: /var/lib/kube-proxy/kubeconfig
       - name: xtables-lock
         hostPath:
           path: /run/xtables.lock