Update the nginx controller manifests to run in the kube-system namespace, be deployments and some general cleanup

examples/deployment/nginx/default-backend.yaml

@@ -1,15 +1,16 @@
-apiVersion: v1
-kind: ReplicationController
+apiVersion: extensions/v1beta1
+kind: Deployment
 metadata:
   name: default-http-backend
+  labels:
+    k8s-app: default-http-backend
+  namespace: kube-system
 spec:
   replicas: 1
-  selector:
-    app: default-http-backend
   template:
     metadata:
       labels:
-        app: default-http-backend
+        k8s-app: default-http-backend
     spec:
       terminationGracePeriodSeconds: 60
       containers:
@@ -34,3 +35,17 @@ spec:
           requests:
             cpu: 10m
             memory: 20Mi
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: default-http-backend
+  namespace: kube-system
+  labels:
+    k8s-app: default-http-backend
+spec:
+  ports:
+  - port: 80
+    targetPort: 8080
+  selector:
+    k8s-app: default-http-backend