How to insert pre-deployment scripts ?

[alexamore90]

Hi, I have Fog Server 1.5.10, everything is up to date, including the kernel. Since I use many PCs a day, all different from each other, I’d like to use a script that, after choosing the image to deploy, before injecting the image, tells me if the SSD or NVMe disk is in good condition, like a SMART check. The same goes for a quick RAM check. I already have some scripts, but even inserting them into the /images/postdownloadscripts folder doesn’t call anything.
Could you help me? Could you tell me the exact procedure?
Or is there another way to do this? Logically, the PCs don’t need to be registered. We make a lot of PCs a day and deploy them without registering the host.