aws: fix cluster monitoring ("none" instead of "false")

cluster/aws/config-test.sh

@@ -51,8 +51,10 @@ ENABLE_DOCKER_REGISTRY_CACHE=true
 # Optional: Install node monitoring.
 ENABLE_NODE_MONITORING="${KUBE_ENABLE_NODE_MONITORING:-true}"
 
-# Optional: When set to true, heapster will be setup as part of the cluster bring up.
-ENABLE_CLUSTER_MONITORING="${KUBE_ENABLE_CLUSTER_MONITORING:-false}"
+# Optional: Cluster monitoring to setup as part of the cluster bring up:
+#   none     - No cluster monitoring setup
+#   influxdb - Heapster, InfluxDB, and Grafana
+ENABLE_CLUSTER_MONITORING="${KUBE_ENABLE_CLUSTER_MONITORING:-none}"
 
 # Optional: Enable node logging.
 ENABLE_NODE_LOGGING="${KUBE_ENABLE_NODE_LOGGING:-true}"

cluster/aws/util.sh

@@ -508,7 +508,7 @@ function kube-up {
     echo "readonly KUBE_USER='${KUBE_USER}'"
     echo "readonly KUBE_PASSWORD='${KUBE_PASSWORD}'"
     echo "readonly SERVICE_CLUSTER_IP_RANGE='${SERVICE_CLUSTER_IP_RANGE}'"
-    echo "readonly ENABLE_CLUSTER_MONITORING='${ENABLE_CLUSTER_MONITORING:-false}'"
+    echo "readonly ENABLE_CLUSTER_MONITORING='${ENABLE_CLUSTER_MONITORING:-none}'"
     echo "readonly ENABLE_NODE_MONITORING='${ENABLE_NODE_MONITORING:-false}'"
     echo "readonly ENABLE_CLUSTER_LOGGING='${ENABLE_CLUSTER_LOGGING:-false}'"
     echo "readonly ENABLE_NODE_LOGGING='${ENABLE_NODE_LOGGING:-false}'"