Identity v3
Create new region
os region create
[--parent-region <region-id>]
[--description <region-description>]
[--url <region-url>]
<region-id>
List regions
os region list
[--parent-region <region-id>]
Set region properties
os region set
[--parent-region <region-id>]
[--description <region-description>]
[--url <region-url>]
<region>