Running and Verifying the Kubernetes Cluster

Verifying the Deployment Result

1. Create a file named nginx_deploy.yaml on the management node.

   vi nginx_deploy.yaml

2. Press i to enter the insert mode and add the following content to the nginx_deploy.yaml file:

   apiVersion: apps/v1
   kind: Deployment
   metadata:
     name: nginx-deployment
     labels:
       app: nginx
   spec:
     replicas: 3
     selector:
       matchLabels:
         app: nginx
     template:
       metadata:
         labels:
           app: nginx
       spec:
         containers:
         - name: nginx
           image: nginx:1.14.2
           imagePullPolicy: IfNotPresent
           ports:
           - containerPort: 80

3. Press Esc, type :wq!, and press Enter to save the file and exit.
4. Deploy the pod nodes of Nginx.

   kubectl create -f nginx_deploy.yaml

5. View the new pod node of Nginx on the management node.

   kubectl get pod --all-namespaces -o wide

   If the value of READY is 1/1, the pod is running properly.

   

6. Verify the Nginx availability on the compute01 node. 10.244.1.11 indicates the IP address of the new Nginx pod created in 5 on the compute01 node.

   wget http://10.244.1.11/index.html

   If the returned status code is 200 and the index.html file is successfully downloaded, Nginx is available. This indicates that the Kubernetes cluster has been successfully deployed.