Certified Kubernetes Security Specialist (CKS)

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Certified Kubernetes Security Specialist (CKS) - Practice Exam Part 12

This lab provides practice scenarios to help prepare you for the Certified Kubernetes Security Specialist (CKS) 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 CKS exam. Good luck!

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Lab Info

Level

Advanced

Last updated

Sep 20, 2025

Duration

30m

Challenge

Create a PodSecurityPolicy to Prevent Privileged Containers
1. Create a PodSecurityPolicy called nopriv-psp.
2. Configure nopriv-psp to prevent the creation of Pods with privileged containers.
Note: PodSecurityPolicy is already enabled in the cluster. You can find a skeleton manifest for the PodSecurityPolicy on the CLI server at /home/cloud_user/nopriv-psp.yml.
Challenge

Use the PodSecurityPolicy to Secure a Namespace
1. Create a ServiceAccount in the hoth namespace called hoth-sa.
2. Create an RBAC setup to use the PodSecurityPolicy.
3. Create a ClusterRole called use-nopriv-psp that allows usage of the PodSecurityPolicy.
4. Create a ClusterRoleBinding called hoth-sa-use-nopriv-psp to bind the ClusterRole to the ServiceAccount.
Note: You can find skeleton manifests for these objects on the CLI Server at:

/home/cloud_user/hoth-sa.yml

/home/cloud_user/use-nopriv-psp.yml

/home/cloud_user/hoth-sa-use-nopriv-psp.yml

You can test your setup using the Pod manifest at /home/cloud_user/luke.yml. The Pod should fail creation since it uses a privileged container.

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