May 2018
Intermediate to advanced
256 pages
7h 6m
English
From an end user's perspective, OpenStack regions are equivalent to regions in Amazon Web Services. Regions live in separate data centers and are often named after their geographical location. If your organization has a data center in Phoenix and one in Raleigh, you'll have at least a PHX and an RDU region. Users who want to geographically disperse their workloads will place some of them in PHX and some of them in RDU. Regions have separate API endpoints, and although the Horizon UI has some support for multiple regions, they are essentially entirely separate deployments.
From an architectural standpoint, there are two main design choices for implementing regions, which are as follows:
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