update heapster related images

Author: den-is

02-path-working-with-clusters/201-cluster-monitoring/templates/heapster/grafana.yaml

@@ -13,7 +13,7 @@ spec:
     spec:
       containers:
       - name: grafana
-        image: gcr.io/google_containers/heapster-grafana-amd64:v4.4.3
+        image: k8s.gcr.io/heapster-grafana-amd64:v4.4.3
         ports:
         - containerPort: 3000
           protocol: TCP

02-path-working-with-clusters/201-cluster-monitoring/templates/heapster/heapster.yaml

@@ -20,7 +20,7 @@ spec:
       serviceAccountName: heapster
       containers:
       - name: heapster
-        image: k8s.gcr.io/heapster-amd64:v1.4.0
+        image: k8s.gcr.io/heapster-amd64:v1.5.2
         imagePullPolicy: IfNotPresent
         command:
         - /heapster

02-path-working-with-clusters/201-cluster-monitoring/templates/heapster/influxdb.yaml

@@ -13,7 +13,7 @@ spec:
     spec:
       containers:
       - name: influxdb
-        image: gcr.io/google_containers/heapster-influxdb-amd64:v1.3.3
+        image: k8s.gcr.io/heapster-influxdb-amd64:v1.3.3
         volumeMounts:
         - mountPath: /data
           name: influxdb-storage