Enforce Container Immutability on lamp-deployment

Modify the existing Deployment named lamp-deployment, running in namespace lamp, so that its containers: run with user ID 20000 use a read-only root filesystem forbid privilege escalation The…

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The task

Context

You must update an existing Pod to ensure the immutability of its containers.

Task

Modify the existing Deployment named lamp-deployment, running in namespace lamp, so that its containers:

run with user ID 20000
use a read-only root filesystem
forbid privilege escalation

The Deployment's manifest file can be found at /home/candidate/finer-sunbeam/lamp-deployment.yaml.

Exam

CKS

Domain

Minimize Microservice Vulnerabilities

Grading

Programmatic · partial credit

Reference

Kubernetes docs ↗

What this tests

Apply Pod Security Standards, securityContext, and mTLS, and protect secrets at rest. On the CKS exam, Minimize Microservice Vulnerabilities tasks are graded purely on what you build in the cluster - not multiple choice - so the only way to get faster is to do them on a real cluster against a clock.

Practice it for real

prepium.sh drops you into your own isolated Kubernetes cluster in the browser - no install, no credit card. You solve the task in a real terminal, hit validate, and a programmatic checker scores exactly what you got right and wrong (with partial credit). The canonical solution unlocks after you attempt it, so you learn the fast, exam-ready way to do it.

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