+1 - the below sums up my impressions from the summit which I was good
with. Look forward to seeing what Angus the guys come up with.
-Paul
On 02/11/15 17:02, Steven Dake (stdake) wrote:
Hey folks,
We had an informal vote at the mid cycle from the core reviewers, and it
was a majority vote, so we went ahead and started the process of the
introduction of mesos orchestration into Kolla.
For background for our few core reviewers that couldn’t make it and the
broader community, Angus Salkeld has committed himself and 3 other
Mirantis engineers full time to investigate if Mesos could be used as an
orchestration engine in place of Ansible. We are NOT dropping our
Ansible implementation in the short or long term. Kolla will continue
to lead with Ansible. At some point in Mitaka or the N cycle we may
move the ansible bits to a repository called “kolla-ansible” and the
kolla repository would end up containing the containers only.
The general consensus was that if folks wanted to add additional
orchestration systems for Kolla, they were free to do so if they did the
development and made a commitment to maintaining one core reviewer team
with broad expertise among the core reviewer team of how these various
systems work.
Angus has agreed to the following
1. A new team called “kolla-mesos-core” with 2 members. One of the
members is Angus Salkeld, the other is selected by Angus Salkeld
since this is a cookie cutter empty repository. This is typical of
how new projects would operate, but we don’t want a code dump and
instead want an integrated core team. To prevent a situation which
the current Ansible expertise shy away from the Mesos
implementation, the core reviewer team has committed to reviewing
the mesos code to get a feel for it.
2. Over the next 6-8 weeks these two folks will strive to join the
Kolla core team by typical means 1) irc participation 2) code
generation 3) effective and quality reviews 4) mailing list
participation
3. Angus will create a technical specification which will we will
roll-call voted and only accepted once a majority of core review
team is satisfied with the solution.
4. The kolla-mesos deliverable will be under Kolla governance and be
managed by the Kolla core reviewer team after the kolla-mesos-core
team is deprecated.
5. If the experiment fails, kolla-mesos will be placed in the attic.
There is no specific window for the experiments, it is really up
to Angus to decide if the technique is viable down the road.
6. For the purpose of voting, the kolla-mesos-core team won’t be
permitted to vote (on things like this or other roll-call votes in
the community) until they are “promoted” to the koala-core reviewer
team.
The core reviewer team has agreed to the following
1. Review patches in kolla-mesos repository
2. Actively learn how the mesos orchestration system works in the
context of Kolla
3. Actively support Angus’s effort in the existing Kolla code base as
long as it is not harmful to the Kolla code base
We all believe this will lead to a better outcome then Mirantis
developing some code on their own and later dumping it into the Kolla
governance or operating as a fork.
I’d like to give the core reviewers another chance to vote since the
voting was semi-rushed.
I am +1 given the above constraints. I think this will help Kolla grow
and potentially provide a better (or arguably different) orchestration
system and is worth the investigation. At no time will we put the
existing Kolla Ansible + Docker goodness into harms way, so I see no
harm in an independent repository especially if the core reviewer team
strives to work as one team (rather then two independent teams with the
same code base).
Abstaining is the same as voting as –1, so please vote one way or
another with a couple line blob about your thoughts on the idea.
Note of the core reviewers there, we had 7 +1 votes (and we have a 9
individual core reviewer team so there is already a majority but I’d
like to give everyone an opportunity weigh in).
Regards
-steve
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