Certified Kubernetes Application Developer (CKAD) Practice Exam

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Certified Kubernetes Application Developer (CKAD) Practice Exam - Part 10

This lab provides practice scenarios to help prepare you for the Certified Kubernetes Application Developer (CKAD) exam. You will be presented with tasks to complete, as well as server(s) and/or an existing Kubernetes cluster to complete them in. You will need to use your knowledge of Kubernetes to successfully complete the provided tasks, much like you would on the real CKAD exam. Good luck!

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Lab Info

Level

Intermediate

Last updated

Sep 24, 2025

Duration

30m

Challenge

Create a Blue/Green Setup for an Existing Deployment

Create a blue/green Deployment setup for the existing web-frontend Deployment in the bluegreen Namespace.

You can find a Deployment manifest for web-frontend on the CLI server at /home/cloud_user/bluegreen/web-frontend.yml. Feel free to copy this manifest in order to create your green Deployment.

Give the green Deployment the name web-frontend-green and set the env label to green in the Pod template.

Once you have created the green Deployment and verified that it is working, modify the web-frontend-svc Service so that it points only to the new green Deployment's Pods. This is a NodePort Service, and you can test it by reaching out to port 30081 on any of the cluster nodes, for example: curl k8s-control:30081.
Challenge

Create a Canary Setup for an Existing Deployment

Create a canary Deployment setup for the existing auth Deployment in the canary Namespace.

There is a manifest file for the existing Deployment at /home/cloud_user/canary/auth.yml. You can copy this file to create your canary Deployment.

Give the canary Deployment the name auth-canary, and set the env label in the Pod template to canary.

There is a Service called auth-svc, also in the canary Namespace. Modify this Service to direct traffic to both the main and canary Deployments. Configure your setup so that there will be 4 total replicas, including both the main Deployment and the canary Deployment, and so that approximately 25% of traffic will go to the canary Pod(s). Note that you may need to modify the original main Deployment in order to accomplish this.

The Service is a NodePort Service, and you can test it by reaching out to port 30082 on any of the cluster nodes, for example: curl k8s-control:30082.

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