Exam
CKA
CKA · Troubleshooting
Control Plane Failure
After a cluster migration, the control plane is completely down. The kube-apiserver, kube-controller-manager, and kube-scheduler static pods are all failing to start.
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The task
After a cluster migration, the control plane is completely down. The kube-apiserver, kube-controller-manager, and kube-scheduler static pods are all failing to start.
There are 3 separate problems across the static pod manifests in:
/etc/kubernetes/manifests/Task: Identify and fix all three issues so the control plane recovers and kubectl get nodes works again.
What this tests
Diagnose failing nodes, control-plane components, the kubelet, and broken cluster networking. On the CKA exam, Troubleshooting tasks are graded purely on what you build in the cluster - not multiple choice - so the only way to get faster is to do them on a real cluster against a clock.
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