@jmelis yes that works thanks!
@atodorov_storpool yes, I was thinking about something like that! Is quite easy to implement and the prolog and epilog scripts are only used in the hypervisor if the user includes the directory and the script and it is valid for any VMM. @atodorov_storpool are you using this in your setup right now? If so, maybe you should open a PR 
Cheers
Alvaro