After Provisioning the VM you need to install few packages like below

yum install kernel-devel
yum install gcc*



EPEL Repositories

wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

( or )

yum -y install epel-release


Ansible Tower Releases

https://releases.ansible.com/ansible-tower/setup/