Dynamic disk space partitioning during installation with a kick start file

Is your feature request related to a problem? Please describe.

We are using kickstart file to fully automate the OS installation. But recently we have different hard-disk storage volumes (500GB, 700GB, 1TB ...etc.). As of now we have to create multiple copies of the ISO image to handle that. This is a little bit hard to maintain and troubleshoot if any issue happened.

Describe the solution you'd like

Is it possible to have a parameter under the "partition" field to accept partition size as a precentage instead of the actual value.

As of now the partition feild looks like : {"mountpoint": "/boot", "size": 128, "filesystem": "ext4"}
Expected : {"mountpoint": "/boot", "sizeprecent": 10, "filesystem": "ext4"}

as per above example the /boot will have a 10% of the harddrive.

Describe alternatives you've considered

We have to create multiple copies of the ISO image

Additional context

No response

Start by locating the kickstart parser and the installation code that handles the partition field. Determine how available disk capacity is calculated, then verify that percentage-based partition sizes produce the requested partition proportions on disks of different capacities.