case $distro in
  trusty)   IMG_USER="ubuntu"
            IMG_URL="http://cloud-images.ubuntu.com/releases/14.04/release"
            IMG_NAME="ubuntu-14.04-server-cloudimg-${ARCH}-disk1.img"
            ;;
  xenial)   IMG_USER="ubuntu"
            IMG_URL="http://cloud-images.ubuntu.com/releases/16.04/release"
            IMG_NAME="ubuntu-16.04-server-cloudimg-${ARCH}-disk1.img"
            ;;
  artful)   IMG_USER="ubuntu"
            IMG_URL="http://cloud-images.ubuntu.com/releases/17.10/release"
            IMG_NAME="ubuntu-17.10-server-cloudimg-${ARCH}-disk1.img"
            ;;
  bionic)    IMG_USER="ubuntu"
            IMG_URL="http://cloud-images.ubuntu.com/releases/18.04/release"
            IMG_NAME="ubuntu-18.04-server-cloudimg-${ARCH}.img"
            ;;
  centos6)  IMG_USER="centos"
            IMG_URL="https://cloud.centos.org/centos/6/images"
            if [[ $arch = "amd64" ]]; then
              IMG_NAME="CentOS-6-x86_64-GenericCloud.qcow2"
            else
              echo "Cloud image not available!"; exit 1
            fi
            ;;
  centos7)  IMG_USER="centos"
            IMG_URL="https://cloud.centos.org/centos/7/images"
            if [[ $arch = "amd64" ]]; then
              IMG_NAME="CentOS-7-x86_64-GenericCloud.qcow2"
            else
              echo "Cloud image not available!"; exit 1
            fi
            ;;
  fedora27) IMG_USER="fedora"
            if [[ $arch = "amd64" ]]; then
              IMG_URL="https://download.fedoraproject.org/pub/fedora/linux/releases/27/CloudImages/x86_64/images/"
              IMG_NAME="Fedora-Cloud-Base-27-1.6.x86_64.qcow2"
            else
              echo "Cloud image not available!"; exit 1
            fi
            ;;
  jessie)   IMG_USER="debian"
            if [[ $arch = "amd64" ]]; then
              IMG_URL="https://cdimage.debian.org/cdimage/openstack/current-8"
              IMG_NAME="debian-8-openstack-amd64.qcow2"
				virt_ostype="debian"
				virt_osvariant="debian8"
            else
              echo "Cloud image not available!"; exit 1
            fi
            ;;
  stretch)  IMG_USER="debian"
            if [[ $arch = "amd64" ]]; then
              IMG_URL="https://cdimage.debian.org/cdimage/openstack/current-9"
              IMG_NAME="debian-9-openstack-amd64.qcow2"
				virt_ostype="debian"
				virt_osvariant="debian9"
            else
              echo "Cloud image not available!"; exit 1
            fi
            ;;
  buster)  IMG_USER="debian"
            if [[ $arch = "amd64" ]]; then
              IMG_URL="https://cdimage.debian.org/cdimage/openstack/current-10"
              IMG_NAME="debian-10-openstack-amd64.qcow2"
				virt_ostype="debian"
				virt_osvariant="debian10"
            else
              echo "Cloud image not available!"; exit 1
            fi
            ;;
  *)        echo "Cloud image not available!"; exit 1
            ;;
esac