export FEDORA_ATOMIC_TREE_URL=${FEDORA_ATOMIC_TREE_URL:-https://kojipkgs.fedoraproject.org/atomic/${DIB_RELEASE}/}
export FEDORA_ATOMIC_TREE_REF=${FEDORA_ATOMIC_TREE_REF:-$(curl ${FEDORA_ATOMIC_TREE_URL}/refs/heads/fedora-atomic/${DIB_RELEASE}/x86_64/docker-host)}
