I've been building custom CentOS and Fedora images for OpenStack using Kickstart files. I realize that this is largely used because CentOS and Fedora pre-built cloud images are not provided by their maintainers. Even though Ubuntu does provide such images, I would also like to build custom versions of these. Is there a similar process for building these (possibly using virt-install and virt-sysprep)?

Alternatively, I could take the pre-built Ubuntu cloud images and modify them (using something like packer) but it would be nice if there was a parallel process for Debian images as there is for RHEL based images.