role / permission to prevent deletion of backup files

[guyman]

Hi,

we use Proxmox VE with Proxmox BS.

On the Proxmox BS, we have to setup some users,
I want to be able, that those users can perform backups, but are not able to delete any of the things.

Why?

I do not want to rely of the Proxmox VE authentication database and settings, I want to do the best to harden the Backup System.

Any ideas would be nice.

Thanks
Ronny

 

[waltar]

Maybe remount backup filesstem readonly after backup, GC, prune etc runs and before next backup mount again readwrite (all by cron script)