I pushed to git://git.debian.org/cloud/fai-cloud-images.git. You can use the configuration space like fai-diskimage -c DEBIAN,CLOUD,AMD64,GRUB_PC -S image_zieimage_name It's very minimal, but does appear to produce an image. The GCE class is present but I haven't tested it. Next nweek I'll base my internal stuff on that and push any non-proprietary changes out. I think it would be reasonable to look at porting Jimmy's GCE work to this config space and confirming that works.