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BETA
cluster: dock-prod-01 · live

Break containers.
Fix them.
Ship with confidence.

Live Kubernetes clusters and Docker environments where real pressure teaches real skills. CKA prep, microservices migrations, Docker Compose untangling — all under production conditions.

14,200+
Labs Completed
+38 in last hour
97.4%
CKA Pass Rate
vs 64% industry avg
3.2s
Avg. Spin-Up
p99: 4.8s
interactive lab

Don't read about
kubectl. Run it.

Every Dock lab drops you into a live cluster. No VMs to provision, no YAML to memorize before you touch anything. The cluster is already broken. Your job is to fix it.

Try a scenario:

No credit card · Cluster ready in 3.2s

Curriculum Explorer

The full stack.
From Compose to production clusters.

48labs
6 weeksduration
6modules
kubeadm bootstrapetcd backup/restoreHA control plane
deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: api-gateway
  namespace: training
spec:
  replicas: 3
  selector:
    matchLabels:
      app: api-gateway
  template:
    spec:
      containers:
      - name: gateway
        image: dock/gateway:v2.4.1
        resources:
          requests:
            memory: "128Mi" cpu:"250m"
          limits:
            memory: "256Mi" cpu:"500m"
Service Mesh — hover to trace
IngressAPI GatewayAuth SvcAPI SvcPostgresRedis
Outcomes · not marketing
97.4%
CKA First-Attempt Pass Rate
+33pp vs industry avg
14,200+
Live Labs Completed
+38 in the last hour
3.2s
Avg. Cluster Spin-Up
p99: 4.8s
8 weeks
Avg. Time to CKA
vs 16 weeks self-study

"Our team had three weeks to migrate a 40-service Compose stack before a Series B demo. Dock's migration track was the only training that matched our actual situation — not a toy example. We shipped on time."

MW
Marcus Webb
Principal Platform Engineer · Fieldline Systems
✓ Migrated 40 services in 18 days
Engineers from teams at
Stripe
Vercel
Linear
Planetscale
Turso
Railway
CKA Pass Rate Comparison
Dock97.4%
Industry Avg.64%
Self-Study41%
Free · No credit card · Cluster in 3.2s

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