Description of problem: Document Customizable roles in TripleO. Upstream documentation is available here: http://tripleo.org/developer/tht_walkthrough/tht_walkthrough.html
The composable services have been documented for Beta. Documenting the composable roles is next.
*** Bug 1367404 has been marked as a duplicate of this bug. ***
emacchi has review the content and I've implemented some feedback from shardy. This content should be ready for a peer review: https://access.redhat.com/documentation/en/red-hat-openstack-platform/10-beta/paged/advanced-overcloud-customization/chapter-8-composable-roles
Sent feedback in email