mirror isn't listed as a component, making entering bugs against it difficult. It's shipped on the RH6.1 discs.
Mirror is included on the powertools CD which means it is located in a different category. With 6.1 this CD now comes with the Deluxe Red Hat where in the past is was a different product all together. Just choose Red Hat Powertools when entering the bug and you will see mirror in the list of components. Sorry for the confusion. We will try to make it more clear.
Commit pushed to master at https://github.com/openshift/openshift-ansible https://github.com/openshift/openshift-ansible/commit/b7cc4a8414f7aa51fab0898ec23cefa7717b62b2 Merge pull request #7001 from mbruzek/cidr_pool_start_end Automatic merge from submit-queue. Removing prefix, replacing with cidr, pool_start and pool_end vars The heat template was hardcoded with a /24 cidr and that limited customers to 251 ip addresses in the OpenStack subnet. This allows the user to configure the cidr and the allocation pool start and end. Addresses issue #6829 that I created last week. @tomassedovic please take a look