DomainQuotaAPIs
Nova V2 APIs for Domain Quota Management
Please check the following documents to understand more about this project
Blue Print -> https://blueprints.launchpad.net/nova/+spec/domain-quota-driver-api
Wiki Page -> https://wiki.openstack.org/wiki/APIs_for_Domain_Quota_Driver
Also, add new variable under nova.quota section keystone_auth_url=http://localhost:35357/v3/
The localhost can be changed to the IP Address of the machine hosting keystone