Focused, hands-on problems for sharpening your DevOps and server-side skills. Some teach specific concepts while others mirror real-world scenarios. Every challenge includes hints, feedback, and automated solution checks.
A MariaDB deployment and its PVC were accidentally deleted. The PersistentVolume survived due to its Retain policy. Restore the database by rebinding the existing PV without losing any data.
Practice static storage provisioning in Kubernetes by creating a PersistentVolume backed by hostPath, binding it to a PersistentVolumeClaim, and mounting it in a Deployment — a core CKAD skill for storage management.
Create a PersistentVolume backed by local storage that can be used only on a specific node, and bind it to a PersistentVolumeClaim using label selectors.