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: 
[Cloud SDK](https://cloud.google.com/sdk/gcloud/reference/compute/disks/list) 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](https://cloud.google.com/sdk/gcloud/reference/topic/filters) 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](https://cloud.google.com/compute/docs/reference/rest/v1/disks/list)
In order to achieve what you are looking for the following google docs will be helpful to get the node name through Go API using two methods[1](https://cloud.google.com/kubernetes-engine/docs/reference/rest/v1/projects.locations.clusters.nodePools/get)<[nodeget](https://cloud.google.com/kubernetes-engine/docs/reference/rest/v1/projects.locations.clusters.nodePools/get)> [2](https://cloud.google.com/compute/docs/reference/rest/v1/instanceGroupManagers/get) <[instagroupget](https://cloud.google.com/compute/docs/reference/rest/v1/instanceGroupManagers/get)>