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Hi Steven, thank you for letting us know about your use case,

The problem is caused because since 6.1 release we run
part of network verification tasks before deployment [1], from
the code it can be seen, that this check is hardcoded [2], before
we send any deployment tasks, so we should figure out a way
to fix it.

Possible options:

1. run network verification us a part of deployment, somewhere
    in pre_deployment stage, between pre_deployment/4999 and
    pre_deployment/6000 [3], but it doesn't cover the case when user
    wants to just run network verification on Network tab

2. introduce new stage pre_network_verification which will be
    run before we start network verification, so you will be able
    to configure switches

Also I would like to notice, that role as a plugin feature which
will allow to change deployment graph of the core, will not help
here [4]. Because network verification is not a part of the graph.

Thanks,

[1] https://bugs.launchpad.net/fuel/+bug/1439686
[2]
https://github.com/stackforge/fuel-web/commit/c4594fc2461f1cf66e580a07d32a869c3f25678d
[3] https://wiki.openstack.org/wiki/Fuel/Plugins#stage_parameter
[4]
https://github.com/stackforge/fuel-specs/blob/master/specs/7.0/role-as-a-plugin.rst

On Tue, Jul 21, 2015 at 12:49 AM, Steven Kath <kath at linux.com> wrote:

> Hi,
>
> I'm hoping to design a FUEL plugin which can provision a switch or set
> of switches according to the Network Settings specified when first
> configuring an environment in FUEL.
>
> We have puppet manifests which allow us to configure every aspect
> of our switches, including the plumbing of VLANs. It would be possible
> for us to configure the VLANs as specified in the environment's
> Network Settings prior to, or as part of, the "Verify Networks" stage.
>
> As far as I can tell, there aren't any FUEL plugin hooks this early in
> the provisioning process. I can't find where to initiate any
> configuration of a remote device before validating the network
> settings. I've looked at a number of the networking plugins for FUEL
> and they all seem to be focused on adding overlays, pre-supposing a
> static underlay network configuration which the plugins never
> manipulate.
>
> Can anyone confirm whether the current FUEL capabilities, or planned
> FUEL 7.0 functionality, would allow for this sort of pre-deployment
> network configuration?
>
> Are there any relevant documentation sections or plugin examples
> which I might have overlooked?
>
> Thanks!
> - Steven
>
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