Ok, so if we proceed using Swarm as our first pursuit, and we want to add 
things to Swarm like scheduling hints, we should open a Magnum bug ticket to 
track each of the upstream patches, and I can help to bird dog those. We should 
not shy away from upstream enhancements until we get firm feedback suggesting 
our contributions are out of scope.

Adrian


-------- Original message --------
From: "Steven Dake (stdake)"
Date:02/07/2015 10:27 AM (GMT-08:00)
To: "OpenStack Development Mailing List (not for usage questions)"
Subject: Re: [openstack-dev] [Magnum] Scheduling for Magnum



From: Eric Windisch <e...@windisch.us<mailto:e...@windisch.us>>
Reply-To: "OpenStack Development Mailing List (not for usage questions)" 
<openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org>>
Date: Saturday, February 7, 2015 at 10:09 AM
To: "OpenStack Development Mailing List (not for usage questions)" 
<openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org>>
Subject: Re: [openstack-dev] [Magnum] Scheduling for Magnum


1) Cherry pick scheduler code from Nova, which already has a working a filter 
scheduler design.
2) Integrate swarmd to leverage its scheduler[2].

I see #2 as not an alternative but possibly an "also". Swarm uses the Docker 
API, although they're only about 75% compatible at the moment. Ideally, the 
Docker backend would work with both single docker hosts and clusters of Docker 
machines powered by Swarm. It would be nice, however, if scheduler hints could 
be passed from Magnum to Swarm.

Regards,
Eric Windisch

Adrian & Eric,

I would prefer to keep things simple and just integrate directly with swarm and 
leave out any cherry-picking from Nova. It would be better to integrate 
scheduling hints into Swarm, but I’m sure the swarm upstream is busy with 
requests and this may be difficult to achieve.

Regards
-steve

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