FixedIp object does not support Neutron

[Dan Prince]

We recently landed a patch to make the metadata API's base.py use the FixedIP object for address lookups.

This causes problems when using the metadata API with neutron because the Nova FixedIP object class does not yet appear to support neutron.

When using the metadata server today (with Neutron) you'll see the following:

Apr 14 15:36:40 localhost nova-api[3373]: 2014-04-14 15:36:40.035 3505 ERROR nova.api.metadata.handler [-] Failed to get metadata for ip: 172.19.0.5

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/87305

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/87305
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=3a915546507e9a5617ada90546342a9239735ff8
Submitter: Jenkins
Branch: master

commit 3a915546507e9a5617ada90546342a9239735ff8
Author: Dan Prince <email address hidden>
Date: Mon Apr 14 11:56:17 2014 -0400

    Revert "Fix network-api direct database hits in metadata server"

    This reverts commit 79ab96e34ba5b8dd3e4e542dd3a7f65624b13367.

    This commit broke the Nova metadata API when using neutron.

    Change-Id: I6855b03f00492fdf51e18c0dcb0a73590a71b374
    Closes-bug: #1307582