Correct way of expanding a volume using helm chart

[ammirator-administrator]

What I'm interested in is how to expand a volume which was created using a helm chart and is a statefulset
And that without UI, just to have the process automated without much manuall interaction
What I tried is:

• Delete statefulset
• increase the size in the helm chart (Using bitnami/postgres)
• and apply the changes

Now the statefullset is recreated but the value remains the old one 8Gi but not updated one 10Gi
What are the correct way to do that with longhorn? In the UI the size doesn't change for some reason

[ammirator-administrator]

After some research I think I come up with a solution but I want to validate that with some longhorn expert and see if that is the correct way:

• Scale down the pods using the volume
• delete the statefulset
• update the size value in helm chart, and edit needed pvc using kubectl edit pvc command with the same value as in helm chart
• Run helm install, this will recreate the satefullset and start the pods back, and use the same pvc/pv buth with the expanded size