hi everyone,
i have a question for the neutron code in liberty: how does neutron assign IP address for instance? in nova.network, it seems that neutron sever gets a feasible ip from the DB pool, which looks like this: nova.compute.manager.ComputeVirtAPI._allocate_network_async() -> nova.network.api.API.allocate_for_instance() -> nova.network.manager.NetworkManager.allocate_for_instance() -> nova.network..manager.NetworkManager_allocate_fixed_ips() but in nova.network.neutronv2.0, It looks like this: nova.compute.manager.ComputeVirtAPI._allocate_network_async() -> neutronv2.api.allocate_for_instance() and it seems that in neutronv2.api.allocate_for_instance(), it doesn't fetch IP address from DB if the para "fixed_ip" == none in allocate_for_instance, but directly calls "_create_port" for a REST API. so my question is whether neutron server will surely assign a fixed IP from DB for instance? Or else, it allows the DHCP agent to take over the IP-MAC selection?
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