(1) The document discusses how to build an OpenStack cluster using SoftLayer infrastructure before lunch and scale it globally by supper.
(2) It provides step-by-step instructions on setting up a three-node OpenStack cluster on SoftLayer and pricing out the necessary components.
(3) The document also describes one person's experience building an OpenStack cluster across two regions with shared Keystone and Horizon services, noting it took around 9 hours once neutron issues were resolved.