[openstack-dev] [Fuel] Dropping Python-2.6 support

Dmitry Borodaenko dborodaenko at mirantis.com
Mon Jan 12 17:24:45 UTC 2015


On Mon, Jan 12, 2015 at 9:10 AM, Evgeniy L <eli at mirantis.com> wrote:
> Agree with Igor, I think we cannot just drop compatibility for fuel client
> with 2.6 python,

Hm, didn't Igor say in his email that "we have to drop python 2.6 support"?

> the reason is we have old master nodes which have
> 2.6 python, and the newer fuel client should work fine on these
> environments.

Client uses REST API to interact with Fuel, how is Python version a factor?

What exactly is the use cases that requires a new client deployed on
an old Fuel master node (or vice versa)?

> Or we can try to install python 2.7 on the master during the upgrade.

Lets do this. It's not that hard, see the link in an email from Ihar
Hrachyshka on this thread.

> As for Nailgun I don't see any problems to use 2.7.
>
> Thanks,
>
> On Mon, Jan 12, 2015 at 7:32 PM, Igor Kalnitsky <ikalnitsky at mirantis.com>
> wrote:
>>
>> Hi, Roman,
>>
>> Indeed, we have to go forward and drop python 2.6 support. That's how
>> it supposed to be, but, unfortunately, it may not be as easy as it
>> seems at first glance.
>>
>> Fuel Master is flying on top of Cent OS 6.5 which doesn't have python
>> 2.7 at all. So we must either run master node on Cent OS 7 or build
>> python2.7 for Cent OS 6.5. The first case, obviously, requires a lot
>> of work, while the second one is not. But I may wrong, since I have no
>> idea what dependencies python 2.7 requires and what we have in our
>> repos.
>>
>> - Igor
>>
>> On Mon, Jan 12, 2015 at 4:55 PM, Roman Prykhodchenko <me at romcheg.me>
>> wrote:
>> > Folks,
>> >
>> > as it was planned and then announced at the OpenStack summit OpenStack
>> > services deprecated Python-2.6 support. At the moment several services and
>> > libraries are already only compatible with Python>=2.7. And there is no
>> > common sense in trying to get back compatibility with Py2.6 because
>> > OpenStack infra does not run tests for that version of Python.
>> >
>> > The point of this email is that some components of Fuel, say, Nailgun
>> > and Fuel Client are still only tested with Python-2.6. Fuel Client in it’s
>> > turn is about to use OpenStack CI’s python-jobs for running unit tests. That
>> > means that in order to make it compatible with Py2.6 there is a need to run
>> > a separate python job in FuelCI.
>> >
>> > However, I believe that forcing the things being compatible with 2.6
>> > when the rest of ecosystem decided not to go with it and when Py2.7 is
>> > already available in the main CentOS repo sounds like a battle with the
>> > common sense. So my proposal is to drop 2.6 support in Fuel-6.1.
>> >
>> >
>> > - romcheg
>> >
>> >
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-- 
Dmitry Borodaenko



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