external_dns_driver causes floating ip association to fail

[Daniel Russell]

If you have 'external_dns_driver = designate' set in neutron.conf and then attempt to associate a floating IP address with an instance, and the instance's network is not present in the 'networkdnsdomains' table, the following error occurs :

for field in potential_fields
  File "/usr/lib/python2.7/site-packages/neutron/objects/base.py", line 368, in <dictcomp>
    if db_obj.get(field) is not None}
AttributeError: 'NoneType' object has no attribute 'get'

[Daniel Russell (danielr-2)]

I believe this is because in /usr/lib/python2.7/site-packages/neutron/objects/network.py, in the get_net_dns_from_port function, it doesn't check if net_dns is None before attempting to load the (possibly None) object.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/472494

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/472494
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=ed27436c0687785075660cf9583bfd3c6fba9727
Submitter: Jenkins
Branch: master

commit ed27436c0687785075660cf9583bfd3c6fba9727
Author: Daniel Russell <email address hidden>
Date: Fri Jun 9 11:50:15 2017 +1000

    Checks if net_dns is None and returns so that we don't attempt to load
    None objects

    Change-Id: I2542fa2a77fc7d0689018564b9e83174b968e5fc
    Closes-Bug: #1696889

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/ocata
Review: https://review.openstack.org/474005

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/474005
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=87e32ebf4224b8a5df5bf6ba2ad2360393a374fb
Submitter: Jenkins
Branch: stable/ocata

commit 87e32ebf4224b8a5df5bf6ba2ad2360393a374fb
Author: Daniel Russell <email address hidden>
Date: Fri Jun 9 11:50:15 2017 +1000

    Checks if net_dns is None and returns so that we don't attempt to load
    None objects

    Change-Id: I2542fa2a77fc7d0689018564b9e83174b968e5fc
    Closes-Bug: #1696889
    (cherry picked from commit ed27436c0687785075660cf9583bfd3c6fba9727)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 11.0.0.0b3 development milestone.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 10.0.3 release.