Deleting all the associate persistent disks when deleting cluster

Question

According to the documentation when deleting a cluster the persistent disk will still exist(https://cloud.google.com/kubernetes-engine/docs/how-to/deleting-a-cluster). I wanna delete all the associate persistent disks when deleting cluster but I don't know the name/id of persistent disk. Cluster get API doesn't have any information about the disks and nodes.

resp, err := containerService.Projects.Zones.Clusters.Get(project, zone, cluster).Context(ctx).Do()

Answer 1

Cloud SDK can be used to identify the disks if the proper filter and format are parse

i.e.

To list all the disks being used by a GKE (you can change the filter at your convenience)

gcloud compute disks list --format="table(name,users)" --filter="name~^gke-"

To list only disks used as PVC

gcloud compute disks list --format="table(name,users)" --filter="name~^gke-.*-pvc-.*"

This last command will list detached PVC disks

gcloud compute disks list --format="table(name,users)" --filter="name~^gke-.*-pvc-.* AND -users:*"

To ensure a detached disk is not in use by a cluster, here's a kubectl command to list a cluster's PVs and their GCE PD:

kubectl get pv -o custom-columns=K8sPV:.metadata.name,GCEDisk:spec.gcePersistentDisk.pdName

The corresponding API method is disks.list