Add a GCE health checks example

examples/health-checks/gce/health_check_app.yaml

@@ -0,0 +1,82 @@
+apiVersion: v1
+kind: ReplicationController
+metadata:
+  name: echoheaders
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: echoheaders
+    spec:
+      containers:
+      - name: echoheaders
+        image: gcr.io/google_containers/echoserver:1.4
+        ports:
+        - containerPort: 8080
+        readinessProbe:
+          httpGet:
+            path: /healthz
+            port: 8080
+          periodSeconds: 1
+          timeoutSeconds: 1
+          successThreshold: 1
+          failureThreshold: 10
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: echoheadersx
+  labels:
+    app: echoheaders
+spec:
+  type: NodePort
+  ports:
+  - port: 80
+    targetPort: 8080
+    protocol: TCP
+    name: http
+  selector:
+    app: echoheaders
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: echoheadersy
+  labels:
+    app: echoheaders
+spec:
+  type: NodePort
+  ports:
+  - port: 80
+    targetPort: 8080
+    protocol: TCP
+    name: http
+  selector:
+    app: echoheaders
+---
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: echomap
+spec:
+  rules:
+  - host: foo.bar.com
+    http:
+      paths:
+      - path: /foo
+        backend:
+          serviceName: echoheadersx
+          servicePort: 80
+  - host: bar.baz.com
+    http:
+      paths:
+      - path: /bar
+        backend:
+          serviceName: echoheadersy
+          servicePort: 80
+      - path: /foo
+        backend:
+          serviceName: echoheadersx
+          servicePort: 80
+