export CLOUD_IMG_URL="http://${UCA_HOST}/${release}/current/${release}-server-cloudimg-${YARD_IMG_ARCH}.tar.gz"
if ! grep -q "Defaults env_keep += \"CLOUD_IMG_URL\"" "/etc/sudoers"; then
sudo echo "Defaults env_keep += \"CLOUD_IMG_URL\"" >> /etc/sudoers
export CLOUD_IMG_URL="http://${UCA_HOST}/${release}/current/${release}-server-cloudimg-${YARD_IMG_ARCH}.tar.gz"
if ! grep -q "Defaults env_keep += \"CLOUD_IMG_URL\"" "/etc/sudoers"; then
sudo echo "Defaults env_keep += \"CLOUD_IMG_URL\"" >> /etc/sudoers