-rdo_images_uri=http://artifacts.opnfv.org/apex/colorado
-onos_release_uri=https://downloads.onosproject.org/nightly/
-onos_release_file=onos-1.6.0-rc2.tar.gz
+BUILD_ROOT=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+BUILD_DIR="$(dirname ${BUILD_ROOT})/.build"
+QUAGGA_RPMS_DIR=${BUILD_DIR}/quagga_build_dir
+CACHE_DIR="$(dirname ${BUILD_ROOT})/.cache"
+CACHE_HISTORY=".cache_history"
+PATCHES_DIR="${BUILD_ROOT}/patches"
+BUILD_UTILS="$(dirname ${BUILD_ROOT})/apex/build_utils.py"
+
+
+rdo_images_uri=${RDO_IMAGES_URI:-http://artifacts.opnfv.org/apex/euphrates/rdo}
+
+onos_release_uri=https://downloads.onosproject.org/release/
+onos_release_file=onos-1.8.4.tar.gz