-if [ "${OS}" == "ubuntu1404" ]; then
- VIRL_TOPOLOGY=double-ring-nested.trusty
- VIRL_RELEASE=csit-ubuntu-14.04.4_2016-10-07_1.3
-elif [ "${OS}" == "ubuntu1604" ]; then
- VIRL_TOPOLOGY=double-ring-nested.xenial
- VIRL_RELEASE=csit-ubuntu-16.04.1_2016-12-19_1.6
-elif [ "${OS}" == "centos7" ]; then
- VIRL_TOPOLOGY=double-ring-nested.centos7
- VIRL_RELEASE=csit-centos-7.3-1611
+if [ -f "/etc/redhat-release" ]; then
+ DISTRO="CENTOS"
+ sudo yum install -y python-devel python-virtualenv
+ VIRL_TOPOLOGY=$(cat ${SCRIPT_DIR}/VIRL_TOPOLOGY_CENTOS)
+ VIRL_RELEASE=$(cat ${SCRIPT_DIR}/VIRL_RELEASE_CENTOS)
+else
+ DISTRO="UBUNTU"
+ export DEBIAN_FRONTEND=noninteractive
+ sudo apt-get -y update
+ sudo apt-get -y install libpython2.7-dev python-virtualenv
+ VIRL_TOPOLOGY=$(cat ${SCRIPT_DIR}/VIRL_TOPOLOGY_UBUNTU)
+ VIRL_RELEASE=$(cat ${SCRIPT_DIR}/VIRL_RELEASE_UBUNTU)