You're getting the public external network because you marked it as shared=True so it's pulled in here:
https://github.com/openstack/nova/blob/a67af1f110f160861f5cbbff987766c46d60198a/nova/network/neutronv2/api.py#L343 And you pass this check for the external shared network on the compute: https://github.com/openstack/nova/blob/a67af1f110f160861f5cbbff987766c46d60198a/nova/network/neutronv2/api.py#L466 So the port for the server gets created in that network. I'm not sure what else you expect to happen here. ** Tags added: neutron ** Changed in: nova Status: New => Invalid ** Summary changed: - auto_allocate_network is not called when external network exists + auto_allocate_network is not called when external shared network exists -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1647629 Title: auto_allocate_network is not called when external shared network exists Status in OpenStack Compute (nova): Invalid Bug description: When I try to boot an instance with '--nic auto', a network isn't created automatically. In neutron side, in order to automatically allocate network/subnet/router, following network is necessary in advance: * router:external is True(it means an external network) * is_default is True * subnet is associated However, if I prepared above default network, nova doesn't call '_can_auto_allocate_network'[1]. As a result, the VM instance is attached that external network.(not generated a network automatically) [1] https://github.com/openstack/nova/blob/master/nova/network/neutronv2/api.py#L1532 [Steps to reproduce] 1. Delete all network/subnet/port/router in neutron 2. Try to create an instance $ nova boot --flavor 1 --image 198384a2-9ece-4d24-a509-4ce02f183b63 vm1 --nic auto ERROR (BadRequest): Unable to automatically allocate a network for project c8607bb7e4334b43aede76831b91ca03 (HTTP 400) (Request-ID: req-2d4088f6-d9aa-492d-a645-02327a058a47) In n-api.log, we can see following error message: Error message: {"NeutronError": {"message": "Deployment error: No default router:external network.", "type": "AutoAllocationFailure", "detail": ""}} 3. I see. OK, let's create default external network(router:external) $ neutron net-create public --is_default --router:external --shared $ neutron subnet-create public --subnetpool a811bf33-dacc-42b9-b44a-d424f37023df 4. Try it again 'nova boot' $ nova boot --flavor 1 --image 198384a2-9ece-4d24-a509-4ce02f183b63 vm1 --nic auto 5. You can check the result with 'nova list' $ nova list +--------------------------------------+------+--------+------------+-------------+-----------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+------+--------+------------+-------------+-----------------+ | 4e83f9d0-acbf-4440-8563-17dd6ec0cde5 | vm1 | BUILD | spawning | NOSTATE | public=10.0.0.9 | +--------------------------------------+------+--------+------------+-------------+-----------------+ To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1647629/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
