add service for nginx app

nginx-app/service.yml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: nginx
+  name: nginx-service
+spec:
+  ports:
+  - port: 80 #change to 80
+    protocol: TCP
+    targetPort: 80 #change to 80
+    nodePort: 30334
+  selector:
+    app: nginx
+  type: NodePort