Description of problem: In 4.0, RHSCL (software collections) is available to RHEL-OSP users, but must be manually enabled. Positioning: --Red Hat OpenStack Repository Configuration --Might also go into the "Configuring software sources" section, not sure whether Packstack has picked this up. Additional info: As well as saying how to enable the channel, please reference the following link: https://access.redhat.com/site/documentation/en-US/Red_Hat_Software_Collections/1/html-single/1.0_Release_Notes/index.html