It is possible to associate multiple floating ip addresses with a single
port through the use of multiple *fixed* ip addresses, e.g.:
nova boot ... --nic net-id=my-net-id myserver
nova add-fixed-ip myserver my-net-id
nova add-floating-ip --fixed-address x.x.x.1 myserver y.y.y.y.1
nova add-floating-ip --fixed-address x.x.x.2 myserver y.y.y.y.2
In this situation, neutron.db.l3_db.disassociate_floatingips would throw
an exception:
Exception: Multiple floating IPs found for port <port-id>
This would prevent someone from deleting an instance that was associated
with multiple floating ips.
This patch corrects disassociate_floatingips so that it will
disassociate all floating ips associated with the port, allowing the
delete operation to proceed correctly.
Change-Id: I68a2131fa8ee80828354c9db4ac405c3f77c3b90
Closes-bug: 1302701
0e209f075d