Hello,
I would like to request feature freeze exception for the
implementation of Nested Quota Driver for Nova, which does the quota
management of nested projects.
Blueprint
https://blueprints.launchpad.net/nova/+spec/nested-quota-driver-api
Addressed by,
https://review.openstack.org/#/c/160605/
The patches in the order of dependency are as follows,
1. Create column allocated in Quota table
https://review.openstack.org/#/c/151327/
<https://review.openstack.org/#/c/151327/>
2. Set default values to sub-projects and users.
https://review.openstack.org/#/c/151677/
<https://review.openstack.org/#/c/151677/>
3. Modification of settable quotas of nested projects
https://review.openstack.org/#/c/200342
<https://review.openstack.org/#/c/200342>
4. Finding parent_id and immediate child list
https://review.openstack.org/#/c/200941/
<https://review.openstack.org/#/c/200941/>
5. Adding v2 and v3 support
https://review.openstack.org/#/c/149828/
Keystone already supports nested projects.Without Nested Quota
Driver ,Nova will not be able to support nested projects,even if they exist in
keystone.
Nested Quota Driver is a superset of DbQuotaDriver and it
supports one to N levels of projects.It can support nested as well as
non-nested projects.
The implementation of Nested Quota Driver is completed and the
code is under review. It is supposed to become the default quota driver of
nova.
To avoid any potential risks,it can be deployed as an optional
driver in the current release and can be made default in the subsequent release.
Kindly grant freeze exception for the change.Nested projects are
very important for large organizations like CERN who are waiting for this code
to get merged in Liberty.
Organizations like NASA, Yahoo, Federal University of Campina
Grande,Brazil etc also have expressed keen interest in this feature.
best regards
sajeesh
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