[openstack-dev] [Neutron] - breaking changes for plugins/drivers
blak111 at gmail.com
Wed Jul 1 10:49:59 UTC 2015
>For the second one, I think we made it clear before that no plugins must
rely on neutron.openstack.* contents.
Where was this made clear? I didn't know about this until it broke and I'm
a very frequent contributor and reviewer, which is the core of my
complaint. The updated wiki is helpful, but doing it after-the-fact only
helps when people try to figure out why they can't make changes to their
In that patch there were 3 in-tree third party plugins that had to be
updated. That should have given a hint that it was likely to break other
plugins as well. The other annoying lesson from that is that
plugins/drivers still in tree are getting better treatment than the ones
that went through the split process.
We need to be much more diligent about announcing these things ahead of
time or we need to be clear that Neutron is completely unstable as a
framework and third party drivers should basically never import anything
from the neutron namespace.
On Tue, Jun 30, 2015 at 11:58 PM, Ihar Hrachyshka <ihrachys at redhat.com>
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> On 07/01/2015 08:22 AM, Kevin Benton wrote:
> > Hi,
> > We have had at least two breaking changes merge this week for
> > out-of-tree drivers/plugins. These are just the two I noticed that
> > broke the Big Switch CI (the one I keep an eye on since I had set
> > it up):
> > 1. Removed test_lib that changes config files.
> > https://review.openstack.org/#/c/196583/ 2. Removed the loopingcall
> > common util with no deprecation cycle or announcement.
> > https://review.openstack.org/#/c/192999/
> > I proposed a revert for 1 that merged, but I don't particularly
> > want to keep fighting this. What is our current policy on this?
> > Just change whatever we want and tell plugin maintainers this is
> > just the way things work?
> For the first one, the revert is justified.
> For the second one, I think we made it clear before that no plugins
> must rely on neutron.openstack.* contents.
> Now I've made it mentioned at:
> If your plugin is using any of neutron.openstack.* contents, just stop
> doing it. It's going to break.
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