Add comments clarifying the use of the minClusterSize flag.

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

@@ -112,6 +112,8 @@ spec:
             - --container=heapster
             - --poll-period=300000
             - --estimator=exponential
+            # Specifies the smallest cluster (defined in number of nodes)
+            # resources will be scaled to.
             - --minClusterSize={{ heapster_min_cluster_size }}
         - image: k8s.gcr.io/addon-resizer:1.8.2
           name: eventer-nanny

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

@@ -113,6 +113,8 @@ spec:
             - --container=heapster
             - --poll-period=300000
             - --estimator=exponential
+            # Specifies the smallest cluster (defined in number of nodes)
+            # resources will be scaled to.
             - --minClusterSize={{ heapster_min_cluster_size }}
         - image: k8s.gcr.io/addon-resizer:1.8.2
           name: eventer-nanny

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

@@ -112,6 +112,8 @@ spec:
             - --container=heapster
             - --poll-period=300000
             - --estimator=exponential
+            # Specifies the smallest cluster (defined in number of nodes)
+            # resources will be scaled to.
             - --minClusterSize={{ heapster_min_cluster_size }}
         - image: k8s.gcr.io/addon-resizer:1.8.2
           name: eventer-nanny

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

@@ -113,6 +113,8 @@ spec:
             - --container=heapster
             - --poll-period=300000
             - --estimator=exponential
+            # Specifies the smallest cluster (defined in number of nodes)
+            # resources will be scaled to.
             - --minClusterSize={{ heapster_min_cluster_size }}
       volumes:
         - name: heapster-config-volume

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

@@ -92,6 +92,8 @@ spec:
             - --container=heapster
             - --poll-period=300000
             - --estimator=exponential
+            # Specifies the smallest cluster (defined in number of nodes)
+            # resources will be scaled to.
             - --minClusterSize={{ heapster_min_cluster_size }}
       volumes:
         - name: heapster-config-volume