Open Stack

Hi!

Thank you for your interest. Don't worry though, the entire report is in english even if we had to put also the summary in french ((because the work has been partially funded by the french government, abstract should be written in French and english).

Thanks for linking the video, it is also a good introduction to our approach.

Cheers


---

Marie Delavergne

----- Mail original -----
> De: "Thierry Carrez" <thierry at openstack.org>
> À: "openstack-discuss" <openstack-discuss at lists.openstack.org>
> Envoyé: Mardi 14 Avril 2020 11:56:39
> Objet: Re: [tc][all][SDK][API] Multi-region/edge OpenStack deployment

> Marie Delavergne wrote:
>> Following the previous discussions regarding approaches to make several
>> instances of OpenStack collaborative[1], we finally decided to make a
>> research report on the approach we initially proposed during the edge
>> hackathon in Berlin (OSF summit 2018).
>> The document is a short article (~10 pages long)[2] that gives a rather
>> complete overview of the approach. If you are interested to see how
>> mutliple instances of distinct OpenStack can give the illusion of a
>> single system you might be interested to give it a look.
>> 
>> A brief excerpt:
>> “We propose a  novel approach that delivers any collaboration between
>> services of distinct OpenStack once and for all. Our approach eliminates
>> development efforts related to the brokering aspect by leveraging
>> dynamic composition and a Domain Specific Language (DSL).
>> Using these two mechanisms, Admins/DevOps can specify, on a per-request
>> basis, which services from which OpenStacks are required for the
>> collaboration. This information is then interpreted to dynamical
>> recompose services between the different OpenStacks, enabling the
>> execution of single-, cross- or multiple-site requests without code effort.”
>> 
>> The main idea is, considering several OpenStacks running, to use a DSL
>> to specify which instance of the service (i.e. on which Openstack) the
>> user wants its request to be executed.
>> For instance, to provision a VM on a Nova in Paris using an image from a
>> Glance in New York. You may contact the API either in NewYork or in
>> Paris and perform the following request:
>> 
>> "openstack server create --image debian --scope { compute: Paris, image:
>> New York }"
>> 
>> Along with the report comes a proof of concept available on GitLab[3].
>> 
>> Feel free to get back to us.
>> 
>> Cheers
>> 
>> [1]
>> http://lists.openstack.org/pipermail/openstack-discuss/2020-March/013562.html
>> [2] https://hal.inria.fr/hal-02527366/
>> [3] https://gitlab.inria.fr/discovery/openstackoid
> 
> Thanks Marie!
> 
> This is a very interesting approach, and I'll make sure to read this
> article soon. For those interested in learning about the openstackoid
> approach but can't read French, I highly recommend the following
> presentation:
> 
> https://www.openstack.org/videos/summits/denver-2019/implementing-localization-into-openstack-cli-for-a-free-collaboration-of-edge-openstack-clouds
> 
> --
> Thierry Carrez (ttx)