rpm %post rewriting of AllowedCPUs is incompatible with ostree

[alexlarsson]

The %post script that rewrites the AllowedCPUs line based on nproc is not gonna work on any kind of image-based system like ostree. The post-install script will be run on the image compose machine, not on the final target, so it will not be correct.

I think the right approach here is to make quadlet support a *.d extension directory (like systemd does), and then you would drop a custom qm.container.d/10-allowedcpu.conf on the target machine.

Actually, maybe this already works if you instead drop a systemd snippet like qm.server.d/10-allowedcpu.conf?