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Hi Sean,

Thanks for all your advices.
We will work in that direction and will look into devstack-vagrant.
We will back to you when we will have more news.

Regarding the summit, unfortunately for us, we will not be able to attend
to the next summit, however you are right, it will be a great time to
discuss about this.

Thanks again,
Jérôme



2014-04-04 22:28 GMT+02:00 Sean Dague <sean at dague.net>:

> On 04/03/2014 10:30 AM, Jérôme Gallard wrote:
> > Hi James,
> >
> > Thanks for your answer!
> > As Mathieu said, we are currently working on the multi-node part of the
> > project and try to understand how the multi-node feature of nodepool
> > could be used by the other components of the infra.
> >
> > Does something like the following lines make sense?
> >
> > + when a job with multi-node is required :
> >     - Jenkins selects a slave who has (for instance) the
> > "multi-devstack-precise" label
> >     - Jenkins clones devstack-gate inside the primary node
> >     - devstack-gate is executed "as usual" on the primary node (call of
> > devstack-vm-gate-wrap.sh --> setup_workspace --> setup_project -->
> > devstack-vm-gate.sh --> setup_localrc --> stack.sh)
> >     - at the end of the execution of stack.sh, a new part of code into
> > devstack-vm-gate.sh will allow to SSH into the "subnodes" thanks to the
> > /etc/nodepool files (this step may probably be done in parallel)
> >         * devstack-gate is cloned inside the subnodes
> >         * devstack-vm-gate-wrap.sh is executed inside the subnodes with
> > specifics environments variables in order to generate a good localrc for
> > the subnodes (some modifications of setup_localrc may have to probably
> > be done)
>
> This looks sound. We'll need a new service selector here for the
> subnodes, as they will be very different in config (and should take
> *far* less time to come up).
>
> As soon as we have anything even remotely starting to function we should
> do a non-voting job on devstack and devstack-gate, as I expect we'll be
> tweaking a bunch there to get something repeatable.
>
> But I think this is a very solid plan.
>
> I also think this would be a great Summit Session for Atlanta as
> hopefully we'll have some prelim work happening and can figure out next
> steps.
>
> This - https://github.com/sdague/devstack-vagrant - has some
> demonstration of multi node devstack in a local environment. There may
> be handy bits in there to figure out how to life into devstack-gate
> feature selection.
>
>         -Sean
>
> --
> Sean Dague
> http://dague.net
>
>
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