Nova/Neutron v3 authentication

[Jamie Lennox]

It is currently only possible for the service user that enables nova to talk to neutron to authenticate via the standard keystone v2 auth mechanisms. As we progress we should support v3 auth and any new formats that come along.

Adopting keystoneclient's session work will give us forward compatibility with any authentication mechanisms they allow.

[Jamie Lennox (jamielennox)]

Because it wasn't automatically linked: https://review.openstack.org/#/c/136931/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/136931
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=caeffad8e71d500a653ac7bc25e4594e624fb481
Submitter: Jenkins
Branch: master

commit caeffad8e71d500a653ac7bc25e4594e624fb481
Author: Jamie Lennox <email address hidden>
Date: Mon Sep 1 12:42:37 2014 +1000

    Use session with neutronclient

    Use the standard session and auth plugin helpers from keystoneclient to
    standardize the options available for talking to neutron. This will
    allow improvements such as using keystone v3 authentication for the
    neutron user.

    DocImpact: Deprecating the existing auth parameters in favour of
    keystoneclient's session and auth plugin loading parameters.

    Closes-Bug: #1424462
    Change-Id: I7b3b825737dde333c8d88019d814304cbefdbfc7

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/juno
Review: https://review.openstack.org/194535

[OpenStack Infra (hudson-openstack)]

Change abandoned by Matt Riedemann (<email address hidden>) on branch: stable/juno
Review: https://review.openstack.org/194535
Reason: Yeah, this isn't appropriate for stable/juno.