Deploy an Ingress application on a virtual node

Prerequisites

A virtual node is deployed in your target Kubernetes cluster. For more information, see Virtual nodes.

The tag virtual-node-affinity-injection: enabled is added to the target namespace. For more information, see Set a namespace tag to create a pod.

Procedure

1. Log on to the Container Service console.
2. In the left-side navigation pane under Container Service-Kubernetes, choose Applications > Deployments.
3. In the upper-right corner, click Create by Template.
4. Select the target cluster and namespace, select an example template or customize a template, and then click DEPLOY.
   You can use the following template to customize a YAML template to create an Ingress application:

   apiVersion: extensions/v1beta1
   kind: Deployment
   metadata:
     name: coffee
   spec:
     replicas: 2
     selector:
       matchLabels:
         app: coffee
     template:
       metadata:
         labels:
           app: coffee
       spec:
         containers:
         - name: coffee
           image: nginxdemos/hello:plain-text
           ports:
           - containerPort: 80
   ---
   apiVersion: v1
   kind: Service
   metadata:
     name: coffee-svc
   spec:
     ports:
     - port: 80
       targetPort: 80
       protocol: TCP
     selector:
       app: coffee
     clusterIP: None
   ---
   apiVersion: extensions/v1beta1
   kind: Deployment
   metadata:
     name: tea
   spec:
     replicas: 3
     selector:
       matchLabels:
         app: tea
     template:
       metadata:
         labels:
           app: tea
       spec:
         containers:
         - name: tea
           image: nginxdemos/hello:plain-text
           ports:
           - containerPort: 80
   ---
   apiVersion: v1
   kind: Service
   metadata:
     name: tea-svc
     labels:
   spec:
     ports:
     - port: 80
       targetPort: 80
       protocol: TCP
     selector:
       app: tea
     clusterIP: None
   ---
   apiVersion: extensions/v1beta1
   kind: Ingress
   metadata:
     name: cafe-ingress
   spec:
     rules:
     - host: cafe.example.com
       http:
         paths:
         - path: /tea
           backend:
             serviceName: tea-svc
             servicePort: 80
         - path: /coffee
           backend:
             serviceName: coffee-svc
             servicePort: 80

Verify the results

• To verify that the coffee and tea deployments are created, follow these steps:
  1. In the left-side navigation pane under Container Service-Kubernetes, choose Applications > Deployments.
  2. Select the target cluster and namespace.
  
• To verify that all the pods of the Ingress application run on the virtual-kubelet node, follow these steps:
  1. In the left-side navigation pane under Container Service-Kubernetes, choose Applications > Pods.
  2. Select the target cluster and namespace.
  
• To verify that the target Ingress is created, follow these steps:
  1. In the left-side navigation pane under Container Service-Kubernetes, choose Discovery and Load Balancing > Ingresses.
  2. Select the target cluster and namespace.
  
• To verify that the created Ingress application can be accessed, run the following commands:

  kubectl -n vk get ing
  curl -H "Host:cafe.example.com" <EXTERNAL_IP>/tea
  curl -H "Host:cafe.example.com" <EXTERNAL_IP>/coffee