Deploy the Deployment and Service by running the following command:

kubectl create -f ./ --save-config --record

Run kubectl get all and notice that 4 Pods, 1 Deployment, and 1 ReplicaSet have successfully been deployed.

Open a separate command window and run one of the following scripts based on your OS to call into the nginx Pods:

Windows (open a PowerShell window):

./curl-loop.ps1

Mac

sh curl-loop.sh

Change the image version in nginx.deployment.yml to the one shown in the comment right next to it. Save the file.

Run the following command to apply the new Deployment:

kubectl apply -f nginx.deployment.yml --record

Go back and check the curl commands being made by the script and you should see no interuption in the service. This demonstrates a Rolling Deployment in action.

Check the Deployment status by running the following:

kubectl rollout status deployment my-nginx