Open Stack

On 14 August 2015 at 11:05, Sean M. Collins <sean at coreitpro.com> wrote:
> On August 13, 2015 3:45:03 AM EDT, Robert Collins
> <robertc at robertcollins.net> wrote:
>>
>> tl;dr - developers running devstack probably want to be using
>> USE_CONSTRAINTS=True, otherwise there may be a few rough hours today.
>> [http://lists.openstack.org/pipermail/openstack-dev/2015-July/068569.html]
>>
>>
>> Apparently some third party CI systems are seeing an issue with
>> cryptography 1.0 - https://review.openstack.org/#/c/212349/ - but I
>> haven't reproduced it in local experiments. We haven't seen it in the
>> gate yet (according to logstash.o.o). Thats likely due to it only
>> affecting devstack in that way, and constraints insulating us from it.
>>
>> Hopefully the cryptography thing, whatever it is, won't affect unit
>> tests which are not yet using constraints (but thats being worked on
>> as fast as we can!)
>>
>>
>> There was a separate issue w/ os-client-config
>> that blew up on 1.6.2,
>> but thats been reproduced and dealt with - though the commit hasn't
>> gotten through the gate yet, so its possible we'll be dealing with a
>> dual-defect problem.
>>
>> That said, again, constraints correctly insulated devstack from the
>> 1.6.2 release - we detected it when the update proposal failed, rather
>> than in the gate queue, so \o/.
>>
>> AFAICT the os-client-config thing won't affect any unit tests.
>>
>> -Rob
>
>
> Do we want to make it a default to True for users of DevStack? I think it
> may be worth considering since I'm not familiar with this issue with crypto
> and having something that protects devs who are trying to work on stuff and
> using DevStack , sounds good. Less cryptic day to day breakage for new
> developers just getting started and using DevStack is a goal I have, long
> term (where possible).
>
> Putting it another way, do you believe that *not* using constraints is the
> exception, not the norm?

I think it would make sense to promote this to defaut.... now that
we've had it in place for a month without the world ending; and now
that we've got the updates and syncing with new releases all moving
smoothly.

-Rob

-- 
Robert Collins <rbtcollins at hp.com>
Distinguished Technologist
HP Converged Cloud