Build cloud ready qcow2 image with packer from kickstart file and minimal iso
packer : https://www.packer.io this is an adaptation of packer template and a simple kikstart to generate openstack cloud images. actually it generates a qcow2 cloud ready image, with this command: packer build template_centos6.json
a glance image-create command is needed to import the qcow2 image to glance