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Hi,
as said, you need to do manual changes to your deployed nodes.
then you will have to:
- synch your galera cluster across the two dc
- configure properly the load balancers
- configure the memcached configuration
- register the services of the second region on the new shared keystone

Br,
Federico

PS: I think that you can change the region name in the YAML file using fuel
cli (
https://docs.mirantis.com/openstack/fuel/fuel-7.0/user-guide.html#cli-usage),
but that won't help much honestly, being the trivial of the steps above.

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On Tue, Nov 17, 2015 at 10:29 AM, Eren Türkay <erent at skyatlas.com> wrote:

> On 17-11-2015 10:40, Federico Michele Facca wrote:
> > Hi Eren,
>
> Hello Federico
>
> > afaik, with the new plugin architecture, in fuel 7/8 it should be easy to
> > create a plugin for achieve your goal.
> > in case of manual job, depending on your cloud architecture there are
> different
> > options, the main ones are:
> > - you keep a single keystone in a datacenter and register the new region
> > services in there.
>
> Yes, that's what I am aiming for. I need a single keystone and multiple
> endpoints. However, as far as I understand, multi-dc isn't supported yet on
> Mirantis (nor the region name change). Do you know the actual/example
> implementation for multi-dc with new plugin architecture? Here are my
> findings
> regarding to the issue. It seems deploying multi-site with fuel is really
> hard
> and not supported.
>
> https://answers.launchpad.net/fuel/+question/267127
> http://lists.openstack.org/pipermail/openstack-dev/2015-October/076298.html
>
>
> --
> Eren Türkay, System Administrator
> https://skyatlas.com/ | +90 850 885 0357
>
> Yildiz Teknik Universitesi Davutpasa Kampusu
> Teknopark Bolgesi, D2 Blok No:107
> Esenler, Istanbul Pk.34220
>
>
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