VPN agent works incorrectly with DVR on multinode setup

[Sergey Kolekonov]

VPN agent works incorrectly with DVR on multi-node setup. It looks like VPN agents on network nodes try to find snat namespace which in fact presents only on one of the nodes, it leads to errors on nodes without this namespace when IPSec connection is created.

The following errors are observed:
2015-08-04 11:41:36.354 12343 ERROR oslo_messaging.rpc.dispatcher [req-bed314eb-329d-47de-ab7a-e63d893949e6 ] Exception during message handling: 'NoneType' object has no attribute 'name
-----------
2015-08-04 11:41:36.354 12343 TRACE oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/neutron_vpnaas/services/vpn/device_drivers/ipsec.py", line 561, in get_namespace
2015-08-04 11:41:36.354 12343 TRACE oslo_messaging.rpc.dispatcher return router.snat_namespace.name
2015-08-04 11:41:36.354 12343 TRACE oslo_messaging.rpc.dispatcher AttributeError: 'NoneType' object has no attribute 'name'

[Al Miller (al-miller)]

I have run into this issue and am working on a patch. I will post it shortly.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/310316

[OpenStack Infra (hudson-openstack)]

Change abandoned by Armando Migliaccio (<email address hidden>) on branch: master
Review: https://review.openstack.org/310316
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[Armando Migliaccio (armando-migliaccio)]

Needs a new owner?

[Launchpad Janitor (janitor)]

[Expired for neutron because there has been no activity for 60 days.]