'Does kubectl delete namespace command deletes associated storageclasses also?
I am new to Kubernetes, and have a question about it.
When we create a statefulset, it gets associated with its PVC and the PVC will be associated a storageclass.
So when we execute command "kubectl delete namespace", should it delete the storageclasses also?
P.S. The cluster is running on AWS.
amazon-web-servicesSolution 1:[1]
Not All Objects are in a Namespace
Most Kubernetes resources (e.g. pods, services, replication controllers, and others) are in some namespaces. And low-level resources, such as nodes and persistentVolumes, are not in any namespace. Source.
The storage class is not a namespace object.
Try to run $ kubectl get storageclass --all-namespaces and you will notice that there is not even the indication of the namespace:
[email protected]:~$ kubectl get storageclass --all-namespaces
NAMESPACE NAME PROVISIONER
slow kubernetes.io/gce-pd
standard (default) kubernetes.io/gce-pd
Therefore I have never paid attention, but I believe that if you delete a namespace nothing will happen to the Storage class objects.
Update:
I created a namespace class "paolo" the following StorageClass:
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
name: slow
namespace: paolo
provisioner: kubernetes.io/gce-pd
parameters:
type: pd-standard
zones: us-central1-a, us-central1-b
I didn't received any error, I deleted the namespace paolo and as expected the StorageClass was still there
My test has been performed on Google Cloud Platform.
Solution 2:[2]
kubectl api-resources --namespaced=false
Above commnd will list all the resources that are not in namespace.
You should see StorageClasses here.
Deleting any namespace will not delete storageclasses.
Sources
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Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Community |
| Solution 2 | ns94 |