--install capnproto-devel,capnproto-libs,capnproto \
-a overcloud-full-opendaylight_build.qcow2
-mv overcloud-full-opendaylight_build.qcow2 overcloud-full-opendaylight.qcow2
+LIBGUESTFS_BACKEND=direct virt-sparsify --compress overcloud-full-opendaylight_build.qcow2 overcloud-full-opendaylight.qcow2
popd > /dev/null