terms - dianaclarke/openstack-notes GitHub Wiki

TripleO Composable Roles
- http://hardysteven.blogspot.ca/2016/10/tripleo-composablecustom-roles.html
- http://hardysteven.blogspot.ca/2016/08/tripleo-composable-services-101.html
- Historically, TripleO provided a fixed architecture with 5 roles (where "roles" means groups of nodes):
  - Controller
  - Compute
  - BlockStorage
  - CephStorage
  - ObjectStorage
What's difference between all these: migrate, live-migrate, evacuate, etc?
- http://www.danplanet.com/blog/2016/03/03/evacuate-in-nova-one-command-to-confuse-us-all/
Undercloud: deployment & management
- instack node is the undercloud
Overcloud: production OpenStack cloud
At its simplest: A cell consists of a database, queue, and set of compute nodes.
Grenade is a test harness to exercise the OpenStack upgrade process between releases. It uses DevStack to perform the initial OpenStack install and then walks through upgrading each enabled project.