Persistance storage in Keswick- Now Keswick is working on the local storage. How can we add an external storage which can be acted as a persistance storage.

You should be able to create a network volume and use this, I have tried NFS and this works fine. https://kubernetes.io/docs/concepts/storage/volumes/ Please let me know if there is something else you are trying to do here?

We are looking for a way, how can we add some external or persistent storage storage so that in a situation, where we lost the host, the application data can be recovered.

Energy Industry use case was illustrated by Avneesh during today's interlock call, with the need for External Storage at the edge

Can you please describe the use case here, you mentioned "external storage" which type of external storage do you see being used at the edge?