Based on https://gist.github.com/ilude/a083934402ee761c402b7ab3ae9bcda7 and https://docs.aws.amazon.com/vm-import/latest/userguide/vmie_prereqs.html
ISO_DIR=~/Downloads/packer
IMAGE_DIR=/var/lib/libvirt/images
WINDOWS_ISO=$ISO_DIR/19043.928.210409-1212.21h1_release_svc_refresh_CLIENTENTERPRISEEVAL_OEMRET_x64FRE_en-us.iso
VIRTIO_ISO=$ISO_DIR/virtio-win.iso