Nova need to consider ironic node as 'host'

[Yang Youseok]

For routed network for ironic, neutron (networking-baremetal) try to add 'host' to segment aggregate.

But the 'host' neutron way trying is 'ironic node uuid' which does not considered to be 'host' in nova side. As a result, neutron meets exception when it try to add 'host' to segment aggregate in (https://github.com/openstack/neutron/blob/master/neutron/services/segments/plugin.py#L253)

Nova already consider ironic node as resource provider which same as 'host', we need some way to add 'ironic node' to aggregates.

[Balazs Gibizer (balazs-gibizer)]

I don't think the routed net feature ever considered ironic integration. Also please note that the nova support for route net was never really implemented. There is a narrow case that already works (pre-created port with deferred ip_allocation) but nothing else. I will mark this bug as a wishlist. I linked it to the Victory PTG discussion etherpad[1] to further discussion but I feel we will eventually need a nova blueprint and spec to handle this.

[1] https://etherpad.opendev.org/p/nova-victoria-ptg