Storage plugin questions

[Max Schettler]

Hi,

I'm working on an Proxmox storage plugin. I have a few questions 
possibilities and specific semantics:

- is it possible to integrate with the webinterface, to allow creation 
of a custom storage provider from there, instead of the CLI?
- when an image is deleted, are derived snapshots supposed to be removed 
as well? Depending on the storage type this is a technical necessity, 
but if not, should it still be done? From the perspective of the storage 
provider it'd be difficult to prevent stale snapshots of deleted VMs to 
persist.

Best regards
Max