[openstack-dev] [Cinder] [stable] [all] Changing stable policy for drivers

Ben Swartzlander ben at swartzlander.org
Sun Aug 7 00:00:06 UTC 2016

On 08/06/2016 06:11 PM, Jeremy Stanley wrote:
> On 2016-08-06 17:51:02 -0400 (-0400), Ben Swartzlander wrote:
> [...]
>> when it's no longer to run dsvm jobs on them (because those jobs
>> WILL eventually break as infra stops maintaining support for very
>> old releases) then we simply remove those jobs and rely on vendor
>> CI + minimal upstream tests (pep8, unit tests).
> This suggestion has been resisted in the past as it's not up to our
> community's QA standards, and implying there is "support" when we
> can no longer test that changes don't cause breakage is effectively
> dishonest. In the past we've held that if a branch is no longer
> testable, then there's not much reason to collaborate on code
> reviewing proposed backports in the first place. If we're reducing
> these branches to merely a holding place for "fixes" that "might
> work" it doesn't sound particularly beneficial.

Well this was the whole point, and the reason I suggested using a 
different branch other than stable/release. Keeping the branches open 
for driver bugfix backports is only valuable if we can go 5 releases back.

I agree the level of QA we can do gets less as releases get older, and 
nobody expects the Infra team to keep devstack-gate running on such old 
releases. However vendors and distros DO support such old releases and 
the proposal to create these branches is largely to simplify the 
distributions of bugfixes from vendors to customers and distros.

Compare this proposal to the status quo, which is that several vendors 
effectively maintain forks of Cinder on github or other public repos 
just to have a place to distribute bugfixes on old releases. Distros 
either need to know about these repos or do the backports from master 
themselves when taking bugfixes into old releases.


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