Lesson  in  Kubelings — Learn Kubernetes the Rustlings Way

Welcome to Kubelings

How the course works: read the situation, fix the live cluster, watch the automated check turn green.

Welcome 👋

Kubelings teaches Kubernetes the way rustlings teaches Rust: a series of small, broken-on-purpose scenarios you fix one at a time.

The loop

  1. Read the situation — each lesson explains what's broken (or what to build) and what "done" looks like.
  2. Fix the cluster — you get a live, multi-node Kubernetes cluster in the tabs on the right. Use kubectl to diagnose and repair.
  3. Watch the check — every lesson has an automated check. It turns green only when the cluster is genuinely in the target state. Re-run after each change.

Tips

  • Each lesson runs in its own fresh cluster — you can't break anything that matters, and "reset" just means reloading the scenario.
  • Prefer inspecting before changing: kubectl get, describe, logs, events.
  • Stuck? Most lessons include a collapsible Hint and a full solution.

Run it locally too

Every scenario is portable. The project repo ships a kind-based runner so you can practice offline:

scripts/run-challenge-local.sh up
scripts/run-challenge-local.sh <challenge> init
scripts/run-challenge-local.sh <challenge> verify

Ready? Head to Module 2 — Workloads & Scheduling and fix your first cluster.

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CrashLoopBackOff: read the logs before you guess
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