y-ken/docker-centos-general-rpmbuild-environment — pull request #1 by ddcruver (2014-08-12 00:33:25+00:00)
Title: Update Dockerfile to specifically use CentOS 6

Add support for building this CentOS 6 Docker Image since CentOS 7 Docker Base Images now exist. This dockerfile would try to build a CentOS 7 machine with the incompatible EPEL 6. RedHat/CentOS should be using the new EPEL 7 Repository. Other changes would be needed as well but this makes it work using CentOS 6.