https://www.youtube.com/watch?v=CUIc2FQ6meA&t=1454s

개수세는거도 있던데

Retrieve Error Messages from a Container Log

• Cluster: kubectl config use-context hk8s

In the customera namespace, check the log for the app container in the custom-app Pod.

Save the lines which contain the text “error” to the file /var/CKA2022/errors.txt

• 답

Node TroubleShooting

• Cluster: kubectl config use-context hk8s

A kubernetes worker node, named hk8s-worker2 is in state NotReady

Investigate why this is the case, and perform any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.

• 답

Count the Number of nodes that are ready to run normal workloads

• Cluster: kubectl config use-context hk8s

Determine how many nodes in the cluster are ready to run normal workloads(i.e., workloads that do not have any special tolerations)

Output this number to the file /var/CKA2022/count.txt

• 답

Management Node

• Cluster: kubectl config use-context hk8s