Update webapp.yaml

webapp.yaml

 apiVersion: apps/v1
 kind: Deployment
 metadata:
-    name: app
-    namespace: sre-spf
+  name: nginx-deployment
   labels:
-       app: app
+    app: nginx
 spec:
-     replicas: 1
+  replicas: 3
   selector:
     matchLabels:
-              app: app
-              tier: frontend
+      app: nginx
   template:
     metadata:
       labels:
-                   app: app
-                   tier: frontend
+        app: nginx
     spec:
       containers:
-               - name: app
-                 image: nginx
-                 imagePullPolicy: Always
+      - name: nginx
+        image: nginx:1.14.2
         ports:
         - containerPort: 80
\ No newline at end of file
-                   name: app
\ No newline at end of file