可能看到这里又会有人问到，既然是云环境，总不能让我老是手动创建虚拟机吧，我老是听别人说起他们的云环境，管理几十台，上百台，上千台虚拟机，手动创建简直是太低级了，怎么才能批量创建呢？
当然，可以批量创建，但是由于现在的环境是VM，也就是虚拟机中生成虚拟机，所以不能实际操作，但是我可以介绍相关的命令来创建虚拟机，大家循环这个命令，也就变相的实现了批量创建虚拟机了。
1、我们首先要创建一个SSH Key
sm@controller:~$ source admin-openrc.sh sm@controller:~$ ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/home/sm/.ssh/id_rsa): Created directory '/home/sm/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/sm/.ssh/id_rsa. Your public key has been saved in /home/sm/.ssh/id_rsa.pub. The key fingerprint is: 5b:94:e1:03:04:d6:01:0c:f1:db:2f:10:c9:3b:3d:ca sm@controller The key's randomart image is: +--[ RSA 2048]----+ | o++=+.. | | +...o o | | = = | | * . . | | = S . | | . + = | | E o . | | . | | | +-----------------+ sm@controller:~$ nova keypair-add --pub-key ~/.ssh/id_rsa.pub sm-key
然后通过这个Key来批量创建虚拟机
注意：这个操作不应该添加sudo，如果使用sudo，就是在root用户下的key了，权限比较高！
2、查看相关资源信息
查看刚刚创建的sm-key
sm@controller:~$ nova keypair-list +--------+-------------------------------------------------+ | Name | Fingerprint | +--------+-------------------------------------------------+ | sm-key | 5b:94:e1:03:04:d6:01:0c:f1:db:2f:10:c9:3b:3d:ca | +--------+-------------------------------------------------+
sm@controller:~$ nova flavor-list +--------------------------------------+-----------+-----------+------+--------- | ID | Name | Memory_MB | Disk | Ephemera +--------------------------------------+-----------+-----------+------+--------- | 1 | m1.tiny | 512 | 1 | 0 | 2 | m1.small | 2048 | 20 | 0 | 3 | m1.medium | 4096 | 40 | 0 | 4 | m1.large | 8192 | 80 | 0 | 5 | m1.xlarge | 16384 | 160 | 0 | 7de2df56-4fdf-40a2-97a6-75f78572e8f9 | my | 2048 | 10 | 0 +--------------------------------------+-----------+-----------+------+---------
查看已有了镜像信息
sm@controller:~$ nova image-list +--------------------------------------+---------------------+--------+--------+ | ID | Name | Status | Server | +--------------------------------------+---------------------+--------+--------+ | f2b0f15b-bd5e-4766-973c-24547c1faf03 | cirros-0.3.2-x86_64 | ACTIVE | | +--------------------------------------+---------------------+--------+--------+
查看网络信息
sm@controller:~$ neutron net-list +--------------------------------------+------------+--------------------------- | id | name | subnets +--------------------------------------+------------+--------------------------- | 1dfa9da1-43fd-4128-b9a0-2ca76a664933 | sharednet1 | db1aad02-3890-44d4-93c4-c9 +--------------------------------------+------------+---------------------------
查看相关的安全信息
sm@controller:~$ nova secgroup-list +--------------------------------------+---------+-------------+ | Id | Name | Description | +--------------------------------------+---------+-------------+ | e92429c7-7d9c-47ac-8eab-9815e6d04ecb | default | default | +--------------------------------------+---------+-------------+
查看相关的虚拟机信息（我将刚才创建的虚拟机都删除了），所以查看的信息为空
sm@controller:~$ nova list +----+------+--------+------------+-------------+----------+ | ID | Name | Status | Task State | Power State | Networks | +----+------+--------+------------+-------------+----------+ +----+------+--------+------------+-------------+----------+
3、设置安全规则
nova secgroup-add-rule default icmp -1 -1 0.0.0.0/0
nova secgroup-add-rule default tcp 22 22 0.0.0.0/0
sm@controller:~$ nova secgroup-list-rules default +-------------+-----------+---------+-----------+--------------+ | IP Protocol | From Port | To Port | IP Range | Source Group | +-------------+-----------+---------+-----------+--------------+ | icmp | -1 | -1 | 0.0.0.0/0 | | | tcp | 22 | 22 | 0.0.0.0/0 | | | | | | | default | | | | | | default | +-------------+-----------+---------+-----------+--------------+
3、创建虚拟机的命令为nova boot
nova boot --flavor m1.tiny --image cirros-0.3.2-x86_64 --nic net-id=1dfa9da1-43fd-4128-b9a0-2ca76a664933 --security-group default --key-name sm-key t1
通过我们前面提供的信息我们可以很容易的理解这个命令的意思，创建一个云主机，名称为t1，云主机类型为m1.tiny，镜像为cirros-0.3.2-x86_64，网络信息为：1dfa9da1-43fd-4128-b9a0-2ca76a664933，安全模式为default.
sm@controller:~$ nova boot --flavor m1.tiny --image cirros-0.3.2-x86_64 --nic net-id=1dfa9da1-43fd-4128-b9a0-2ca76a664933 --security-group default --key-name sm-key t1
+--------------------------------------+------------------------------------------------------------+
| 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-00000003 |
| 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 | 5BVQG2oN4msE |
| config_drive | |
| created | 2015-04-04T09:13:46Z |
| flavor | m1.tiny (1) |
| hostId | |
| id | 180e098b-ab40-4194-b75e-ec0de8f4147f |
| image | cirros-0.3.2-x86_64 (f2b0f15b-bd5e-4766-973c-24547c1faf03) |
| key_name | sm-key |
| metadata | {} |
| name | t1 |
| os-extended-volumes:volumes_attached | [] |
| progress | 0 |
| security_groups | default |
| status | BUILD |
| tenant_id | b500268a41e34752aba847c7ea464870 |
| updated | 2015-04-04T09:13:46Z |
| user_id | 9b1cdfc2b5614eb39f042317f54a286c |
+--------------------------------------+------------------------------------------------------------+
我们查看一下nova list
sm@controller:~$ nova list +--------------------------------------+------+--------+------------+-------------+-------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+------+--------+------------+-------------+-------------------------+ | 180e098b-ab40-4194-b75e-ec0de8f4147f | t1 | ACTIVE | - | Running | sharednet1=192.168.3.53 | +--------------------------------------+------+--------+------------+-------------+-------------------------+
或者直接在界面中查看实例信息
![[管理篇3]VMWare搭建Openstack——批量创建虚拟机实例](https://image.shishitao.com:8440/aHR0cHM6Ly93d3cuaXRkYWFuLmNvbS9pbWdzLzgvNi8zLzQvNTYvMGYyNGI3MmI4ZTFiNDRkMjllYjZmOTFlYmJhM2U4OTMuanBl.jpe?w=700&webp=1 "[管理篇3]VMWare搭建Openstack——批量创建虚拟机实例")
当然，你可以指定你的虚拟机创建在哪个节点上
sm@controller:~$ sudo nova-manage service list [sudo] password for sm: Binary Host Zone Status State Updated_At nova-cert controller internal enabled :-) 2015-04-26 03:45:24 nova-consoleauth controller internal enabled :-) 2015-04-26 03:45:23 nova-scheduler controller internal enabled :-) 2015-04-26 03:45:23 nova-conductor controller internal enabled :-) 2015-04-26 03:45:23 nova-compute computer nova enabled :-) 2015-04-26 03:45:23 nova-compute controller nova enabled :-) 2015-04-26 03:45:25
然后指定我的虚拟机创建在Controller节点上
sm@controller:~$ nova boot --availability-zone nova:controller --flavor m1.tiny --image cirros-0.3.2-x86_64 --nic net-id=1dfa9da1-43fd-4128-b9a0-2ca76a664933 --security-group default --key-name sm-key a2
+--------------------------------------+------------------------------------------------------------+
| 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-00000018 |
| 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 | pQ96QmEaCGbg |
| config_drive | |
| created | 2015-04-26T03:33:35Z |
| flavor | m1.tiny (1) |
| hostId | |
| id | ce74548e-a951-4d85-bb6d-8ff2a62bb82e |
| image | cirros-0.3.2-x86_64 (f2b0f15b-bd5e-4766-973c-24547c1faf03) |
| key_name | sm-key |
| metadata | {} |
| name | a2 |
| os-extended-volumes:volumes_attached | [] |
| progress | 0 |
| security_groups | default |
| status | BUILD |
| tenant_id | b500268a41e34752aba847c7ea464870 |
| updated | 2015-04-26T03:33:35Z |
| user_id | 9b1cdfc2b5614eb39f042317f54a286c |
+--------------------------------------+------------------------------------------------------------+
![[管理篇3]VMWare搭建Openstack——批量创建虚拟机实例](https://image.shishitao.com:8440/aHR0cHM6Ly93d3cuaXRkYWFuLmNvbS9pbWdzLzIvNC8wLzkvMzEvYmNjMjIwYzU5NTY5OWI0YWFhNTBlOWM0Y2M4YTRiMDcuanBl.jpe?w=700&webp=1 "[管理篇3]VMWare搭建Openstack——批量创建虚拟机实例")
我们可以编写Linux的Shell脚本来批量生成多台虚拟机实例
#!/bin/bash
for i in $(seq 1 10)
do
nova boot --flavor m1.tiny --image SuperMap7ciServer --nic net-id=1dfa9da1-43fd-4128-b9a0-2ca76a664933 --security-group default --key-name sm-key iserver$i
echo "Create VM Named iserver$i sucessful!"
done