OpenStack adds a network port to a virtual machine

Create subnet  
  --allocation-pool start=start_ip_address,end=end_ip_address  --dns-nameserver dns_resolver--gateway Public _network_gateway

Find tenant First

[[email protected] ~]# OpenStack Project list
+----------------------------------+---------+
| ID | Name |
+----------------------------------+---------+
| 3013fa8f600145108b836228236cb8f3 | Demo |
| 4a930be69d0540d38d5529449d93f1d0 | Service |
| a7d90c2bbe1b49a18a04482447a52aa9 | admin |

Create port for demo tenant If the admin tenant is not visible under demo tenant

SOURCE admin-openrc.sh
[Email protected] ~]# neutron port-create--tenant-id 3013fa8f600145108b836228236cb8f3--fixed-ip subnet_id=27539347- F509-4368-9ec1-36dcb07942da,ip_address=172.16.0.123 Flat

Show Port List

[Email protected] ~]# neutron port-list
+--------------------------------------+------+-------------------+-------------------------------------------- -------------------------------------------+
| ID | name | mac_address | Fixed_ips |
+--------------------------------------+------+-------------------+-------------------------------------------- -------------------------------------------+
| 26130380-B1E9-491F-8232-65946C90A3B9 | | Fa:16:3e:ee:55:ac | {"subnet_id": "d0440b1c-84ac-438a-be93-8e70f6416b3c", "IP_Address": "192.168.26.122"} |
| 5e92c6fb-e869-4596-819b-d827b9264ce6 | | fa:16:3e:7d:c2:9c | {"subnet_id": "27539347-f509-4368-9ec1-36dcb07942da", "IP_Address": "172.16.0.122"} |
| bbee04e8-9e21-4651-9c37-ea2372198f8b | | fa:16:3e:e7:7f:5e | {"subnet_id": "27539347-f509-4368-9ec1-36dcb07942da", "IP_Address": "172.16.0.123"} |
| c22ca00f-48d5-494c-a602-f230443abc87 | | fa:16:3e:92:3d:1e | {"subnet_id": "d0440b1c-84ac-438a-be93-8e70f6416b3c", "IP_Address": "192.168.26.123"} |

Attach port to virtual machine

Nova Interface-attach--port-id bbee04e8-9e21-4651-9c37-ea2372198f8b server-name

OpenStack adds a network port to a virtual machine