[RFE] make get-me-a-network work with any network topology

[Armando Migliaccio]

Today Get-me-a-network work in such a way that neutron provisions a rather specific network topology for tenant connectivity. It would be nice if Neutron were able to support any network topology (e.g. plain provider vlans).

[Armando Migliaccio (armando-migliaccio)]

One way to make this use-case possible is by doing the following:

a) the admin, as a one off step, provision a pool of networks the way he/she sees fit. These probably need to be tagged in a 'special' way and be admin-only.

b) the gman plugin looks up in this pool, picks one out of the pool and shares it with the tenant.

c) if the pool is exhausted or does not exist, fall back on provisioning the topology as usual; if that fails as well, return an error to the user.

[Armando Migliaccio (armando-migliaccio)]

This requires the compare-and-swap approach to be complete end-to-end before proceeding.

[Armando Migliaccio (armando-migliaccio)]

Looks like compare-and-swap approach is nearly done, and I already had a (racy) prototype that would implement this use case. Let's sync up on the latest state.

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/488160

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/490228

[Armando Migliaccio (armando-migliaccio)]

The spec is proposed and the code should be relatively contained. I need to refine the spec to incorporate feedback that Kevin gave me OTA but other than that this is a great starter RFE.

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/527547

[OpenStack Infra (hudson-openstack)]

Change abandoned by Slawek Kaplonski (<email address hidden>) on branch: master
Review: https://review.openstack.org/527547
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[OpenStack Infra (hudson-openstack)]

Change abandoned by boden (<email address hidden>) on branch: master
Review: https://review.opendev.org/490228
Reason: This patch has been stale for awhile now. Moving it to abandoned to clean-up the queue. If this patch is still active, please push an update to it.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Slawek Kaplonski (<email address hidden>) on branch: master
Review: https://review.opendev.org/488160
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[Rodolfo Alonso (rodolfo-alonso-hernandez)]

Bug closed due to lack of activity, please feel free to reopen if needed.