CKA Practice (Simple Edition)

Straightforward CKA practice labs derived from the CKA-PREP playlist. Every question lives in its own folder with bash files:

• LabSetUp.bash — set up the environment for the question.
• Questions.bash — the scenario text plus the YouTube link for the walkthrough.
• SolutionNotes.bash — a step-by-step solution when you need a hint.
• validate.bash — automatic validation checks to confirm your solution is correct.
• cleanup.bash — clean up and remove resources created during the question.

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How to Use

1. Launch the Killercoda CKA playground or your own cluster.
2. Clone this repo inside the environment:

   git clone https://github.com/markdjones82/CKA-PREP-2025-v2.git ~/CKA-PREP-2025-v2
   cd ~/CKA-PREP-2025-v2

3. Run a question setup by number:

   scripts/run-question.sh 5

4. Work through the task, then consult SolutionNotes.bash if you need help.
5. Validate your solution:

   scripts/validate-question.sh 5

6. Clean up resources when done:

   scripts/cleanup-question.sh 5

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Validating Your Solutions

Each question has a validate.bash script that runs automated checks against your cluster to confirm the solution is correct.

Validate a single question

# By question number
scripts/validate-question.sh 5

# By directory name
scripts/validate-question.sh Question-5-HPA

Validate all questions

scripts/validate-question.sh all

The script outputs PASS or FAIL for each check, with a final score summary. Exit code is 0 if all checks pass, non-zero otherwise.

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Simulated Exam Desktop (VSCodium)

You can use VSCodium (an open-source VS Code build) inside the Killercoda simulated desktop to edit files in a familiar IDE environment, similar to what is available in the real CKA exam.

NOTE: A paid Killercoda subscription is required for the simulated desktop environment. Without it, the desktop GUI is not available and VSCodium cannot be launched graphically.

Install VSCodium

scripts/install-codium.sh

Launch VSCodium

Once installed, open it from inside your repo:

cd ~/CKA-PREP-2025-v2
codium --no-sandbox --user-data-dir .

This opens VSCodium in the current directory, allowing you to browse and edit all question files directly.

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Available Questions

#	Topic	Video
1	MariaDB — Persistent Volume	https://youtu.be/aXvvc1EB1zg
2	ArgoCD — Install via Helm (no CRDs)	https://youtu.be/e0YGRSjb8CU
3	Sidecar Container	https://youtu.be/3xraEGGQJDY
4	Resource Allocation	https://youtu.be/ZqGDdETii8c
5	HPA — HorizontalPodAutoscaler	https://youtu.be/YGkARVFKtmM
6	CRDs — cert-manager	https://youtu.be/SA1DzLQaDJs
7	PriorityClass	https://youtu.be/CZzxGyF6OHc
8	CNI & Network Policy	https://youtu.be/Uc04Ui4x3EM
9	cri-dockerd	https://youtu.be/ybzo1vXiqjU
10	Taints & Tolerations	https://youtu.be/oy6Mdqt1-jk
11	Gateway API	https://youtu.be/G9zispvOCHE
12	Ingress	https://youtu.be/sy9zABvDedQ
13	Network Policy	https://youtu.be/rA8mXYTU0W8
14	Storage Class	https://youtu.be/di7X7OHn2fc
15	Etcd Fix	https://youtu.be/IL448T6r8H4
16	NodePort Service	—
17	TLS Config	—