[Rdo-list] Install rdo on rack system Hardware and GPU

Hi, I like to install rdo manually, and I find the Red Hat Enterprise Linux OpenStack Platform 5 document has very good description for manually installing openstack. Is it compatible to install rdo manually following instruction of that document on CentOS 7? Also, I like to install rdo in a rack hardware system with ceph storage and GPUs, has any one succeeded on rack system with GPU? Appreciate your advice to recommend cheap and good rack hardware. Thank you. Kind regards, - j