Linux Foundation CKS Exam With Confidence Using Practice Dumps

Cluster: scanner

Master node: controlplane

Worker node: worker1

You can switch the cluster/configuration context using the following command:

[desk@cli] $ kubectl config use-context scanner 

Given:

You may use Trivy's documentation.

Task:

Use the Trivy open-source container scanner to detect images with severe vulnerabilities used by Pods in the namespace nato.

Look for images with High or Critical severity vulnerabilities and delete the Pods that use those images.

Trivy is pre-installed on the cluster's master node. Use cluster's master node to use Trivy.

Analyze and edit the given Dockerfile

FROM ubuntu:latest

 

RUN apt-get update -y

 

RUN apt-install nginx -y

 

COPY entrypoint.sh /

 

ENTRYPOINT ["/entrypoint.sh"]

 

USER ROOT

Fixing two instructions present in the file being prominent security best practice issues

Analyze and edit the deployment manifest file

apiVersion: v1

kind: Pod

metadata:

  name: security-context-demo-2

spec:

  securityContext:

    runAsUser: 1000

  containers:

  - name: sec-ctx-demo-2

    image: gcr.io/google-samples/node-hello:1.0

    securityContext:

      runAsUser: 0

      privileged: True

      allowPrivilegeEscalation: false

Fixing two fields present in the file being prominent security best practice issues

Don't add or remove configuration settings; only modify the existing configuration settings

Whenever you need an unprivileged user for any of the tasks, use user  test-user with the user id 5487

Context

A PodSecurityPolicy shall prevent the creation of privileged Pods in a specific namespace.

Task

Create a new PodSecurityPolicy named prevent-psp-policy,which prevents the creation of privileged Pods.

Create a new ClusterRole named restrict-access-role, which uses the newly created PodSecurityPolicy prevent-psp-policy.

Create a new ServiceAccount named psp-restrict-sa in the existing namespace staging.

Finally, create a new ClusterRoleBinding named restrict-access-bind, which binds the newly created ClusterRole restrict-access-role to the newly created ServiceAccount psp-restrict-sa.