release cadence and channels for the ubuntu-core snap

[Oliver Grawert]

hi,
Am Montag, den 07.03.2016, 17:37 -0600 schrieb Leo Arias:
> On 2016-03-03 06:11, Oliver Grawert wrote:
> > Am Mittwoch, den 02.03.2016, 08:46 -0600 schrieb Leo Arias:
> > 
> >> We will build an ubuntu-core snap for every change in the snappy 
> >> master branch and release it to the edge channel.
> > 
> > while i am fighting for "one image build per launchpad MP landing"
> > since a few years already, please note that this means rootfs
> > builds ...
> > 
> > since launchpad switched to shared (package) buildds for rootfs
> > builds we are depending on having a free builder available in the 
> > infrastructure (multiplied by number of arches we support). at
> > times of full archive rebuilds of the distro and other high times 
> > (right before freezes in the distro there are usually tons of
> > uploads) where the builders are under heavy load your image/rootfs
> > build request might sit for hours in the queue until a free builder
> > is available (or a buildd admin forces it through manually) ...
> > 
> > so we should make sure that we dont have actual time critical 
> > expectations in this process atm.
> 
> You make it sound like a rebuild per pull request is unrealistic,
i dont think it is unrealistic for most of the time, but during
high-load times we might fall behind 

>  but
> a rebuild per day is doable. We can live with that.
i guess thats how we should start, long term i think the "one per
commit" is still a good target but we need to make sure the infra will
cope with that (i.e. making sure builds don't pile up in the queue but
get canceled and we still get all changes in a later build even if we
skip one etc)

>  Let's first get
> the infrastructure and triggers in place, and then check out how long
> does it take to decide on the frequency.
> 
> We'll need your help ogra, so I'll be bothering you this week.

cool ... though i think we might need someone from launchpad too

ciao
	oli