openstack简单操作

创建规格

flavor create --ram 256 --vcpus 1 --disk 5 s1.qh

查看规格

flavor list

创建镜像

image create --container-format bare --disk-format qcow2 --min-disk 1 --min-ram 256 --file /root/cirros-0.6.2-x86_64-disk.img mycirros-0.6.2-x86_64

查看NOVA

compute service list

+----+----------------+-----------+----------+---------+-------+----------------------------+
| ID | Binary         | Host      | Zone     | Status  | State | Updated At                 |
+----+----------------+-----------+----------+---------+-------+----------------------------+
|  4 | nova-scheduler | control01 | internal | enabled | up    | 2024-11-26T11:02:02.000000 |
|  1 | nova-conductor | control01 | internal | enabled | up    | 2024-11-26T11:01:58.000000 |
|  3 | nova-compute   | node02    | nova     | enabled | up    | 2024-11-26T11:01:53.000000 |
|  4 | nova-compute   | node01    | nova     | enabled | up    | 2024-11-26T11:01:57.000000 |

创建网络

network create new_net

创建子网

subnet create --subnet-range 10.173.0.0/24 --gateway 10.173.0.1 --network new_net new_subnet01

创建实例

server create --flavor s1.qh --image mycirros-0.6.2-x86_64 --nic net-id=c861c1c9-6b91-4e42-842b-07f56e21941b mynew_vm

注意net-id指的是网络的ID，不是子网的ID

列出所有主机，主要是找计算节点的名称

host list

+-----------+-----------+----------+
| Host Name | Service   | Zone     |
+-----------+-----------+----------+
| control01 | scheduler | internal |
| control01 | conductor | internal |
| node02    | compute   | nova     |
| node01    | compute   | nova     |
+-----------+-----------+----------+

或者：compute service list

列出指定主机上的实例

server list --host node01
+--------------------------------------+----------+---------+------------------------+-----------------------+--------+
| ID                                   | Name     | Status  | Networks               | Image                 | Flavor |
+--------------------------------------+----------+---------+------------------------+-----------------------+--------+
| 10bf701f-8c17-4853-8a33-758ddd35973f | mynew_vm | ACTIVE  | new_net=10.173.0.241   | mycirros-0.6.2-x86_64 | s1.qh  |
| 62f8e677-b0a4-4c36-b50f-62716c6b9752 | test4    | SHUTOFF | test2=172.16.1.43      |                       | 1C256M |
| c6abea24-bd1e-4d43-96bd-e606acc034cb | test2    | SHUTOFF | test_net=192.168.7.160 |                       | 1C256M |
+--------------------------------------+----------+---------+------------------------+-----------------------+--------+

实例热迁移

server migrate 10bf701f-8c17-4853-8a33-758ddd35973f --live-migration --host node02

router create router2

router add subnet router2 new_subnet01

router set router2 --external-gateway out