[openstack-dev] [Fuel][Plugins] differenciate node with the same role

Guillaume Thouvenin thouveng at gmail.com
Thu Jun 25 11:04:20 UTC 2015

Hi guys,

 And also for 7.0 there is a spec in review [1] about custom labels that
may be interesting to differentiate nodes with the same role if labels are
exposed via the astute.yaml.


[1] https://review.openstack.org/#/c/184076/

On Thu, Jun 25, 2015 at 12:47 PM, Andrey Danin <adanin at mirantis.com> wrote:

> Hi, Samuel,
> We use magic words in node names for Fuel Contrail plugin. It uses
> the "bare" role to deploy Contrail controllers.
> Unfortunately, we don't have node tags in 6.1, but we are going to
> implement custom roles from a plugin in 7.0. Please see a spec
> https://blueprints.launchpad.net/fuel/+spec/role-as-a-plugin
> On Wednesday, June 24, 2015, Samuel Bartel <samuel.bartel.pro at gmail.com>
> wrote:
>> Hi folks
>> I am wondering if it is possible to differenciate nodes within a same
>> role. Is it possible for example to apply aplugin to a compute node A but
>> not a compute node B?
>> It will be more clear with examples :
>> 1) for the nfs plugin I want to use nfs storage backend for compute node
>> A but LVM for compute node B
>> 2) I was thinking of a plugin to define Availability zone and setup
>> compute node A and B in AZ1 and compute node C in AZ2
>> I think it would possible to check according to specific value in the
>> name of the node. But it doesn't seems to me to be very clean. And if we
>> hav many plugins built in that way, name of the node would become very
>> complicated soon and it is not very flexible. I was more looking a way to
>> put a tag in the node (without needed to manually edit deployement yaml
>> files)
>> Anyone has already done something like this or has a tips on that topic?
>> regards
>> Samuel
> --
> Andrey Danin
> adanin at mirantis.com
> skype: gcon.monolake
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