Merge pull request #490 from apoorva-05/master

Updated Alternate Backend Documentation

Author: sreejithgs

docs/deploy/deploy-cic-openshift.md

@@ -32,8 +32,40 @@ For information on deploying the Citrix ingress controller to control the OpenSh
 
 You can use Citrix ADC for load balancing Openshift control plane (master nodes). Citrix provides a solution to automate the configuration of Citrix ADC using Terraform instead of manually configuring the Citrix ADC. For more information, see [Citrix ADC as a load balancer for the OpenShift control plane](https://github.com/citrix/citrix-k8s-ingress-controller/blob/master/deployment/openshift/citrix-adc-for-control-plane/README.md).
 
-**Note:**
-OpenShift support of alternate backends is now supported by Citrix ingress controller. Citrix ADC is configured according to the weights provided in the routes definition and traffic is distributed among the service pods based on those weights.
+## Alternate Backend Support
+[OpenShift Alternate backends](https://docs.openshift.com/container-platform/3.7/architecture/networking/routes.html#alternateBackends) is now supported by Citrix ingress controller.
+
+Citrix ADC is configured according to the weights provided in the routes definition and traffic is distributed among the service pods based on those weights.
+
+The following is an example of a route manifest with alternate backend:
+
+	
+	kind: Route
+	apiVersion: route.openshift.io/v1
+	metadata:
+	  name: r1 
+	  labels:
+	    name: apache
+	  annotations:
+	    ingress.citrix.com/frontend-ip: "<Frontend-ip>"
+	spec:
+	  host: some.alternate-backends.com
+	  to:
+	    kind: Service
+	    name: apache-1
+	    weight: 30
+	  alternateBackends:
+	    - kind: Service
+	      name: apache-2
+	      weight: 20
+	    - kind: Service
+	      name: apache-3
+	      weight: 50
+	  port:
+	    targetPort: 80
+	  wildcardPolicy: None
+	
+For this route, 30 percent of the traffic is sent to the service apache-1 and 20 percent is sent to the service apache2 and 50 percent to the service apache-3 based on weights provided in the route manifest 
 
 ## Supported Citrix components on OpenShift