Challenges by Shiva Swaroop N K

Focused, hands-on DevOps and server-side problems with hints, feedback, and automated solution checks.

Challenge

CKA Practice: Recover a NotReady Node After a Kubelet Configuration Error

A worker node dropped to NotReady and part of the workload went with it. The container runtime is fine and the control plane is healthy; the trail leads from kubectl symptoms down into systemd and the kubelet configuration. Diagnose the node and bring it back.

Challenge

CKA Practice: Recover a Broken Static Control-Plane Pod

Every kubectl command against a kubeadm cluster fails, and the workload is still serving. With no API to query, the usual tools tell you nothing. Work from the node itself to find what broke and bring the control plane back.