使用命令：nova boot --flavor 1 --key_name mykey--image 9e5c2bee-0373-414c-b4af-b91b0246ad3b --security_group default cirrOS
其中：
flavor是虚拟机的配置，比如说内存大小，硬盘大小等，默认下1为最小，4为最大。
key_name是创建虚拟机使用的密钥，使用以下三条命令创建密钥：
ssh-keygen
cd.ssh
nova keypair-add --pub_key id_rsa.pub mykey
image是已上传镜像的ID，使用nova image-list查询。
security_group是安全组。
cirrOS是你所要创建的虚拟机名。
stack@ustack:/home/stack$ pwd
/home/stack
stack@ustack:/home/stack$ nova keypair-add oskey >oskey.priv
stack@ustack:/home/stack$ chmod 600 oskey.priv
stack@ustack:/home/stack$ nova flavor-list
+-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| ID | Name | Memory_MB | Disk |Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |
+-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
| 1 | m1.tiny | 512 | 1 | 0 | | 1 | 1.0 | True |
| 2 | m1.small | 2048 | 20 | 0 | | 1 | 1.0 | True |
| 3 | m1.medium | 4096 | 40 | 0 | | 2 | 1.0 | True |
| 4 | m1.large | 8192 | 80 | 0 | | 4 | 1.0 | True |
| 42 | m1.nano | 64 | 0 | 0 | | 1 | 1.0 | True |
| 451 | m1.heat | 512 | 0 | 0 | | 1 | 1.0 | True |
| 5 | m1.xlarge | 16384 | 160 | 0 | | 8 | 1.0 | True |
| 84 | m1.micro | 128 | 0 | 0 | | 1 | 1.0 | True |
+-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
stack@ustack:/home/stack$ nova image-list
+--------------------------------------+---------------------------------+--------+--------+
| ID | Name | Status | Server |
+--------------------------------------+---------------------------------+--------+--------+
| 845cae84-3031-47e0-9a76-0d2e1a9acc2d| Fedora-x86_64-20-20140618-sda |ACTIVE | |
| fb584b71-ee87-443c-adba-f5b61c10c039 |cirros-0.3.2-x86_64-uec | ACTIVE| |
| e54a9f62-f27d-4793-bcef-25cd80d06e62 |cirros-0.3.2-x86_64-uec-kernel | ACTIVE| |
| 0fb0e025-2df5-41d1-947f-60ba179d49d5 |cirros-0.3.2-x86_64-uec-ramdisk | ACTIVE | |
+--------------------------------------+---------------------------------+--------+--------+
使用nova boot命令创建虚拟机
stack@ustack:/home/stack$ nova boot --flavor 2 --key_nameoskey --image 845cae84-3031-47e0-9a76-0d2e1a9acc2d fedora
+--------------------------------------+----------------------------------------------------------------------+
| Property | Value |
+--------------------------------------+----------------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-SRV-ATTR:host | - |
| OS-EXT-SRV-ATTR:hypervisor_hostname | - |
| OS-EXT-SRV-ATTR:instance_name | instance-00000002 |
| OS-EXT-STS:power_state | 0 |
| OS-EXT-STS:task_state | scheduling |
| OS-EXT-STS:vm_state | building |
| OS-SRV-USG:launched_at | - |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| adminPass | Wbn9w6bTnEoG |
| config_drive | |
| created |2014-11-27T02:11:02Z |
| flavor | m1.small(2) |
| hostId | |
| id |9068bbb6-d640-4345-9a67-fad233f01961 |
| image |Fedora-x86_64-20-20140618-sda (845cae84-3031-47e0-9a76-0d2e1a9acc2d) |
| key_name | oskey |
| metadata | {} |
| name | fedora |
| os-extended-volumes:volumes_attached |[] |
| progress | 0 |
| security_groups | default |
| status | BUILD |
| tenant_id |a32c49a8d4c04936bc436da5ff16379b |
| updated | 2014-11-27T02:11:02Z |
| user_id |7b313c95e7b044e2b3dc6f0b31672c2f |
+--------------------------------------+----------------------------------------------------------------------+
虚拟机创建完毕，打印虚拟机列表
stack@ustack:/home/stack$ nova list
+--------------------------------------+--------+--------+------------+-------------+--------------------+
| ID | Name | Status | Task State | Power State |Networks |
+--------------------------------------+--------+--------+------------+-------------+--------------------+
| fda792f6-92b7-4c7f-adb9-a7e200ef0c7e |cirros | ACTIVE | - |Running | private=10.10.10.2 |
| 9068bbb6-d640-4345-9a67-fad233f01961 |fedora | ACTIVE | - |Running | private=10.10.10.3 |
+--------------------------------------+--------+--------+------------+-------------+--------------------+
添加防火墙规则
stack@ustack:/home/stack$ nova secgroup-add-rule defaulttcp 22 22 0.0.0.0/0
+-------------+-----------+---------+-----------+--------------+
| IP Protocol | From Port | To Port | IPRange | Source Group |
+-------------+-----------+---------+-----------+--------------+
| tcp | 22 | 22 | 0.0.0.0/0 | |
+-------------+-----------+---------+-----------+--------------+
stack@ustack:/home/stack$ nova secgroup-add-rule defaulticmp -1 -1 0.0.0.0/0
+-------------+-----------+---------+-----------+--------------+
| IP Protocol | From Port | To Port | IPRange | Source Group |
+-------------+-----------+---------+-----------+--------------+
| icmp | -1 | -1 | 0.0.0.0/0 | |
+-------------+-----------+---------+-----------+--------------+
原文地址：http://sgcloud.blog.51cto.com/9644687/1583329
