Is there a way to use existing volumes or volume claims?

Hi,

When deploying the helm chart, I want to use the existing persistent volumes. For example, if I want to delete and redeploy the chart, or restore from a backup, I will have to move the existing data from previous volumes to the newly created ones. I checked the `values.yaml`, but couldn't find a relevant configuration option, Is the chart configurable for such a case?

Start with values.yaml and inspect how the Helm chart currently defines persistent volumes and volume claims. Determine how existing volumes or claims should be selected during deletion, redeployment, or backup restoration. Done means the chart exposes a documented configuration for reusing them and the rendered manifests validate correctly.

Written by the indexing model from the issue text.