add port names

Change-Id: I1bc975544a4a19c0386e7d93c3f0c324dbd6d538
diff --git a/nem-monitoring/templates/importer-service.yaml b/nem-monitoring/templates/importer-service.yaml
index 183b02b..55b4089 100644
--- a/nem-monitoring/templates/importer-service.yaml
+++ b/nem-monitoring/templates/importer-service.yaml
@@ -22,11 +22,13 @@
 spec:
   type: NodePort
   ports:
-    - port: 8080
+    - name: http
+      port: 8080
       targetPort: 8080
       nodePort: {{ .Values.nem_device_management_httpPort }}
       protocol: TCP
-    - port: 50051
+    - name: grpc
+      port: 50051
       targetPort: 50051
       nodePort: {{ .Values.nem_device_management_grpcPort }}
       protocol: TCP