Focused hands-on problems designed to help you hone your DevOps or Server Side skills. Some challenges are more educational, while others are based on real-world scenarios. The platform provides hints and feedback for each challenge, including automated solution checks.
A webapp deployment in the prod namespace is stuck in CrashLoopBackOff. The application's startup probe checks that its existing config directory is intact before the container is marked healthy. Fix the deployment so configuration is injected correctly and the pod reaches Running state with its health check endpoint responding on port 8080.
Combine an existing ConfigMap and Secret into one volume and mount them at a single path inside a Pod — using only one volume definition.
A Deployment is failing because application configuration is missing. Mount only specific keys from an existing ConfigMap as files inside the Pod at the correct path so the application can start successfully.
A Pod is failing in the japan namespace. Investigate the issue, identify the root cause, and fix it to get the Pod running.
Create a ConfigMap, mount it into a Deployment as individual files, and validate the mounted values using a readiness probe.