ADD http://download.cirros-cloud.net/0.3.5/cirros-0.3.5-x86_64-disk.img ${IMAGE_DIR}
ADD http://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img ${IMAGE_DIR}
ADD http://download.cirros-cloud.net/0.3.5/cirros-0.3.5-x86_64-disk.img ${IMAGE_DIR}
ADD http://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img ${IMAGE_DIR}