Bump Heapster to v0.20.0-alpha7

cluster/addons/cluster-monitoring/google/heapster-controller.yaml

@@ -26,7 +26,7 @@ spec:
         kubernetes.io/cluster-service: "true"
     spec:
       containers:
-        - image: gcr.io/google_containers/heapster:v0.20.0-alpha6
+        - image: gcr.io/google_containers/heapster:v0.20.0-alpha7
           name: heapster
           resources:
             # keep request = limit to keep this container in guaranteed class
@@ -45,7 +45,7 @@ spec:
             - name: ssl-certs
               mountPath: /etc/ssl/certs
               readOnly: true
-        - image: gcr.io/google_containers/heapster:v0.20.0-alpha6
+        - image: gcr.io/google_containers/heapster:v0.20.0-alpha7
           name: eventer
           resources:
             # keep request = limit to keep this container in guaranteed class

cluster/addons/cluster-monitoring/googleinfluxdb/heapster-controller-combined.yaml

@@ -26,7 +26,7 @@ spec:
         kubernetes.io/cluster-service: "true"
     spec:
       containers:
-        - image: gcr.io/google_containers/heapster:v0.20.0-alpha6
+        - image: gcr.io/google_containers/heapster:v0.20.0-alpha7
           name: heapster
           resources:
             # keep request = limit to keep this container in guaranteed class
@@ -46,7 +46,7 @@ spec:
             - name: ssl-certs
               mountPath: /etc/ssl/certs
               readOnly: true
-        - image: gcr.io/google_containers/heapster:v0.20.0-alpha6
+        - image: gcr.io/google_containers/heapster:v0.20.0-alpha7
           name: eventer
           resources:
             # keep request = limit to keep this container in guaranteed class

cluster/addons/cluster-monitoring/influxdb/heapster-controller.yaml

@@ -26,7 +26,7 @@ spec:
         kubernetes.io/cluster-service: "true"
     spec:
       containers:
-        - image: gcr.io/google_containers/heapster:v0.20.0-alpha6
+        - image: gcr.io/google_containers/heapster:v0.20.0-alpha7
           name: heapster
           resources:
             # keep request = limit to keep this container in guaranteed class
@@ -41,7 +41,7 @@ spec:
             - --source=kubernetes:''
             - --sink=influxdb:http://monitoring-influxdb:8086
             - --metric_resolution=60s
-        - image: gcr.io/google_containers/heapster:v0.20.0-alpha6
+        - image: gcr.io/google_containers/heapster:v0.20.0-alpha7
           name: eventer
           resources:
             # keep request = limit to keep this container in guaranteed class

cluster/addons/cluster-monitoring/standalone/heapster-controller.yaml

@@ -26,7 +26,7 @@ spec:
         kubernetes.io/cluster-service: "true"
     spec:
       containers:
-        - image: gcr.io/google_containers/heapster:v0.20.0-alpha6
+        - image: gcr.io/google_containers/heapster:v0.20.0-alpha7
           name: heapster
           resources:
             # keep request = limit to keep this container in guaranteed class