Kubernetes Lab 5 - Debugging

Solution

Check STATUS column for not Ready

    kubectl get pods --all-namespaces

Check the description of the deployment

kubectl describe deployment hyper-drive

Save logs for a broken pod

kubectl logs <pod name> -n <namespace> > /home/cloud_user/debug/broken-pod-logs.log

In the description you will see the following is wrong: - Selector and Label names do not match. - The Probe is TCP instead of HTTP Get. - The Service Port is 80 instead of 8080.

To fix probe, can't kubectl edit, need to delete and recreate the deployment

kubectl get deployment <deployment name> -n <namespace> -o yaml --export > hyper-drive.yml

Delete pod

kubectl delete deployment <deployment name> -n <namespace>

Can also use kubectl replace

Edit yaml, and apply

kubectl apply -f hyper-drive.yml -n <namespace>

Verify

kubectl get deployment <deployment name> -n <namespace>