[rdo-list] Archived EOL distribution not available?

Hi all, I have been using OpenSatck Icehouse on CentOS 6 for research purpose, but recently found the rdo-release-* files in EOL archive are all removed from the repository in fedorapeople (i.e., repos.fedorapeople.org/repos/openstack/EOL/openstack- /epel-6/). Actually, I am in critical trouble for this because deployment of that version on CentOS 6 is essential for evaluation of my system.. I am not sure those files are deleted by accident or intentionally to prevent people to use deprecated versions. But, if latter is the case, I think it is not fit to the purpose of an archive as well.. It looks there are also some other people who are confused for this: https://ask.fedoraproject.org/en/question/87680/did-the-package-rdo-relea... Please consider to bring back those rdo-release-* files in the archive.. Or is there any other mirror repo where I can get old versions of OpenStack on CentOS? Regards, Hyun-wook Baek