Added backend push notifications

backend-push-notifications/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: backend-push-notifications
+  namespace: app-notifications
+spec:
+  selector:
+    app: backend-push-notifications
+  ports:
+    - protocol: TCP
+      port: 9000
+      targetPort: 9000
+      nodePort: 30904
+      name: prometheus-metrics 
+  type: NodePort