创建OpenStack外部网络并分配浮动IP

source openrc
neutron net-create ext-net --provider:network_type local --router:external True
neutron subnet-create ext-net --name ext-subnet --allocation-pool start=168.5.24.30,end=168.5.24.39 --disable-dhcp --gateway 168.5.24.1 168.5.24.0/24

source demo_openrc
neutron router-create demo-router
neutron router-interface-add demo-router demo-subnet
neutron router-gateway-set demo-router ext-net

neutron floatingip-create ext-net
Created a new floatingip:
+---------------------+--------------------------------------+
| Field               | Value                                |
+---------------------+--------------------------------------+
| fixed_ip_address    |                                      |
| floating_ip_address | 168.5.24.185                         |
| floating_network_id | db0e051e-1e79-4b35-ba27-bd3cd8f08703 |
| id                  | 082f8e34-35f1-489c-8c09-3be23136cdd2 |
| port_id             |                                      |
| router_id           |                                      |
| status              | DOWN                                 |
| tenant_id           | 80eead718ac94ecf9a63c3d502058ab0     |
+---------------------+--------------------------------------+
nova floating-ip-associate demo-instance1 168.5.24.185