feat: Add zfs-dracut to fedora-coreos and ucore

[twiest]

Add zfs-dracut to fedora-coreos and ucore. zfs-dracut is necessary to include zfs when rebuilding initrd.

[bsherman]

Add zfs-dracut to fedora-coreos and ucore. zfs-dracut is necessary to include zfs when rebuilding initrd.

@twiest thank you for the PR!

I wonder... we haven't yet done it in ucore, but the atomic desktop images in ublue-os org rebuild the initrd as part of image build.

see: https://github.com/ublue-os/main/blob/main/initramfs.sh

I am thinking the package addition makes sense as you've done it, but also, we could rebuild initrd as part of the ucore builds and pre-include zfs so a user need not do so. I wouldn't do this on the fedora-coreos images, because my intent with those is to do no more than install the minimally required packages.

Thoughts?

[twiest]

I love that idea!

I believe I would personally still need this as I rebuild the initrd myself for other reasons (like adding more dirs to / for mounting points before it is set read-only).

[bsherman]

I believe I would personally still need this as I rebuild the initrd myself for other reasons (like adding more dirs to / for mounting points before it is set read-only).

Ok, for now, we can approve and merge this as is, we'll consider the build time re-generation of initramfs as a distinct issue.