networking is not setup correctly when NUMBER_FAKE_NOVA_COMPUTE is more than 1

[Matt Riedemann]

When stacking with NUMBER_FAKE_NOVA_COMPUTE=3 and then trying to create a server with networking, a port is created in neutron but then fails to binding, presumably because there are 3 fake compute hosts but only one neutron agent:

stack@crosscell:~$ openstack host list | grep compute
| crosscell1 | compute | cell1 |
| crosscell2 | compute | cell1 |
| crosscell3 | compute | cell2 |

stack@crosscell:~$ openstack network agent list
+--------------------------------------+--------------------+-----------+-------------------+-------+-------+---------------------------+
| ID | Agent Type | Host | Availability Zone | Alive | State | Binary |
+--------------------------------------+--------------------+-----------+-------------------+-------+-------+---------------------------+
| 2a2c7679-3571-4abd-a339-21a965ade707 | L3 agent | crosscell | nova | :-) | UP | neutron-l3-agent |
| 5a6f87b3-bf67-4182-81e9-34aa56b7b2d9 | DHCP agent | crosscell | nova | :-) | UP | neutron-dhcp-agent |
| 9b179883-5d9e-4c7e-9890-e68df468eb8c | Metadata agent | crosscell | None | :-) | UP | neutron-metadata-agent |
| f804ee11-e624-4438-a0a3-3aefa1caf1f7 | Open vSwitch agent | crosscell | None | :-) | UP | neutron-openvswitch-agent |
+--------------------------------------+--------------------+-----------+-------------------+-------+-------+---------------------------+

Note that the hosts don't line up between compute and network agents.

This was the port binding failure in the q-svc log:

Apr 02 23:29:15 crosscell neutron-server[11131]: DEBUG neutron.plugins.ml2.drivers.mech_agent [req-c5a8d5f3-8270-4a75-ac66-a9908b6f209d req-81c69392-3726-4663-aeb8-2c95d2da1d65 service neutron] Port 6079221f-1de8-4406-a7f1-842bc44ed0fd on network 1081c57a-5b09-46f4-af2d-8965a5078f78 not bound, no agent of type Open vSwitch agent registered on host crosscell2 {{(pid=11316) bind_port /opt/stack/neutron/neutron/plugins/ml2/drivers/mech_agent.py:104}}
...
Apr 02 23:29:15 crosscell neutron-server[11131]: ERROR neutron.plugins.ml2.managers [req-c5a8d5f3-8270-4a75-ac66-a9908b6f209d req-81c69392-3726-4663-aeb8-2c95d2da1d65 service neutron] Failed to bind port 6079221f-1de8-4406-a7f1-842bc44ed0fd on host crosscell2 for vnic_type normal using segments [{'network_id': '1081c57a-5b09-46f4-af2d-8965a5078f78', 'segmentation_id': None, 'physical_network': u'public', 'id': '809e71fc-9b84-47f0-9d02-c248ebb620d6', 'network_type': u'flat'}]

[Dr. Jens Harbott (j-harbott)]

Seems nobody cares enough about this issue to patch it. Feel free to reopen if there is still interest.