OpenStack Packstack mariadb galera error

Issue

• When trying to install Red Hat Openstack with the packstack installer and using mariadb galera, packstack generates the following error:

Execution of '/usr/bin/yum -d 0 -e 0 -y install mariadb-galera-server' returned 1: Error: mariadb-galera-server conflicts with 1:mariadb-server-5.5.37-1.el7_0.x86_64