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Learn Kubernetes by breaking and fixing real clusters.

20 hands-on labs (and growing) — deploy an app, scale it, debug a CrashLoopBackOff — running entirely in your browser. An AI tutor reads your YAML, simulates real failures, and tells you exactly what's wrong.

Try 5 labs free See pricing →

0 setup — no kubectl, no minikube 20 guided labs · more added weekly ₹799 one-time · lifetime access

Why ClusterLens

The fastest way from "what's a pod?" to job-ready.

Tutorials show you the answer. ClusterLens makes you produce it — then checks your work like a senior engineer would.

A real K8s simulator

Apply a Deployment and watch ReplicaSets create Pods, roll out, scale, and crash — a faithful reconcile loop, no backend cluster required.

AI YAML tutor

Every mistake gets a specific, field-level explanation — image: nginx:latst? It catches the typo, the missing readinessProbe, the wrong selector.

Certificate + interview prep

Finish the track and get a shareable, verifiable completion certificate. The interview add-on drills the exact K8s questions FAANG-adjacent shops ask.

How it works

Read the goal. Write the YAML. Watch it run.

Pick a lab

Each lab is a real scenario: "3 replicas won't start."

Edit the manifest

Fix the YAML in an in-browser editor.

Apply it

The simulator reconciles and shows pod status live.

Get graded

Instant tutor feedback until the goal goes green.

Pricing

Learn free. Pay once. Own it forever.

No subscription. One-time payment unlocks everything, for life. Prices in ₹ INR (and $ USD).

Free

₹0

Always free

{c} First 5 labs
{c} Full in-browser simulator
{c} Deterministic YAML tutor
{x} Labs 6 onward (the paid track)
{x} Completion certificate
{x} Interview prep

Start now

Full Track

₹799 once

≈ $12 · lifetime access

{c} All 20 labs today — deploy → services → secrets → probes → RBAC → HPA — plus every new lab as we grow to 40, free
{c} Shareable, verifiable certificate
{c} AI tutor on every lab
{c} Free updates for life
{x} Interview prep add-on

Career Bundle

₹1,999 once

≈ $29 · everything

{c} Everything in Full Track
{c} 25 interview-prep drills + rubrics
{c} "Explain this to an interviewer" mode
{c} Mock-scenario challenges
{c} Priority tutor (LLM) when enabled

Secure checkout via Razorpay (UPI/cards/netbanking) & Stripe · GST-compliant invoice · 7-day refund policy

Your next DevOps interview is a `kubectl apply` away.

Join the free tier now — you'll fix your first crashing pod in under 5 minutes.

Launch the playground