Updating a port only propagates to the external DNS service if dns_name is changed, when it should also propagate IP addresses changes

[James Anziano]

Updating a port only alerts the dns extension if dns_name is changed, when it should also be informed if the IP address was changed.

Steps to reproduce:
Make sure your environment is configured to use the dns-integration extension.
Run neutron port-update my-port --fixed-ips ip_address=0.0.0.0 (use an IP address that fits your subnet's CIDR)

DevStack all-in-one built from master
Perceived severity: medium

[Miguel Lavalle (minsel)]

I have reproduced this bug

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/289555

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/289555
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=69ef84e21fc9e4bea16f758a2b4d72c7056df713
Submitter: Jenkins
Branch: master

commit 69ef84e21fc9e4bea16f758a2b4d72c7056df713
Author: James Anziano <email address hidden>
Date: Mon Mar 7 20:38:37 2016 +0000

    Updates external DNS service if IP address changes

    Previously the external DNS service was only notified when dns_name
    was updated in a port, but it should also be alerted when the IP
    address changes. This patch propogates the changes invoked in a port
    update to the external DNS service when either the dns_name or the IP
    address of a port changes.

    Change-Id: I319f7a3265caaee5edaab19695a99d84e8e9a8ab
    Closes-Bug: 1554207

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/neutron 8.0.0.0rc1 release candidate.