"BTW, learning Kubernetes can be done in a few days." How do you troubleshoot an api-group that is failing intermittently? How do you troubleshoot a CSI issue

"BTW, learning Kubernetes can be done in a few days." How do you troubleshoot an api-group that is failing intermittently? How do you troubleshoot a CSI issue? Because CSI isn't a simple protocol like CNI. What do you look at if kubectl gets randomly stuck? What do you do if a node becomes notReady? What do you do if the container runtime of a several nodes starts failing? What do you do if one of the etcd nodes doesn't start? What if you are misisng logs in the log aggregator or metrics? What if when you create a project it's missing the service accounts? What if kube-proxy randomly doesn't work? What if the upgrade fails and ends up in an inconsistent state? What if your pod is actually running but shows as pending? Sure, you can learn how to deploy kubernetes and an application on top of it in a couple days, but learning how to run a production will take way longer than that.