Step 1: Deploy a service

This topic describes how to deploy a service.

1. Log on to the Container Service console.
2. In the left-side navigation pane under Container Service-Kubernetes, choose Application > Deployment.
3. In the upper-right corner, click Create from Template.
   
   
4. Select the target cluster and namespace, select a sample template or customize a template, and then click Create.
   
   

   In this example, a template is orchestrated to deploy an Nginx application that contains the required deployment, the target service, and an Ingress. The deployment exposes its port through NodePort. The Ingress provides externally accessible services. The orchestration template is as follows:

   apiVersion: extensions/v1beta1
   kind: Deployment
   metadata:
     name: old-nginx
   spec:
     replicas: 2
     selector:
       matchLabels:
         run: old-nginx
     template:
       metadata:
         labels:
           run: old-nginx
       spec:
         containers:
         - image: registry.cn-hangzhou.aliyuncs.com/xianlu/old-nginx
           imagePullPolicy: Always
           name: old-nginx
           ports:
           - containerPort: 80
             protocol: TCP
         restartPolicy: Always
   ---
   apiVersion: v1
   kind: Service
   metadata:
     name: old-nginx
   spec:
     ports:
     - port: 80
       protocol: TCP
       targetPort: 80
     selector:
       run: old-nginx
     sessionAffity: None
     type: NodePort
   ---
   apiVersion: extensions/v1beta1
   kind: Ingress
   metadata:
       name: gray-release
   spec:
     rules:
     - host: www.example.com
       http:
         paths:
         # The service of an earlier version.
         - path: /
           backend:
             serviceName: old-nginx
             servicePort: 80

5. In the left-side navigation pane under Container Service-Kubernetes, choose Ingresses and Load Balancing > Ingresses.
   You can see that the virtual host name points to old-nginx.
   
   
6. Log on to the Master node and run the curl command to view the Ingress.

   curl -H "Host: www.example.com" http://<EXTERNAL_IP> 

   Note You can obtain the value of <EXTERNAL_IP> by using either of the following two methods:

   • Run the following command:

     kubectl get ingress

   • In the left-side navigation pane under Container Service-Kubernetes, choose Ingresses and Load Balancing > Ingresses to view the endpoint information of the target Ingress.