使用salt-cloud创建openstack虚拟机
众所周知，saltstack有三大功能：远程执行、配置管理、云管理。其中的云管理就是通过salt-cloud完成的。salt-cloud能够管理很多云环境（公有云、私有云），连大名鼎鼎的阿里云也可以通过salt-cloud来创建虚拟机哦。 本次主要讲解使用salt-cloud管理openstack（L版）私有云来创建虚拟机。（前提openstack环境运行正常，能正常创建虚拟机）1 安装saltstack
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yum install salt-master salt-minion salt-cloud -y
安装依赖包：
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yum install python-libcloud -y
2 创建provider配置文件，告诉salt-cloud如何连接openstack（yaml语法，注意空格）
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# pwd
/etc/salt/cloud.providers.d
# vim openstack.conf
myopenstack:
# Set the location of the salt-master
#
minion:
master: 192.168.56.11
# Configure the OpenStack driver
#
identity_url: http://192.168.56.11:5000/v2.0/tokens
compute_name: nova
protocol: ipv4
compute_region: RegionOne
# Configure Openstack authentication credentials
#
user: demo
password: demo
# tenant is the project name
tenant: demo
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provider: openstack
# skip SSL certificate validation (default false)
insecure: false
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检查配置：
语法：
salt-cloud --list-locations <provider_name> 查看可用的区域
salt-cloud --list-images <provider_name> 查看可用的镜像
salt-cloud --list-sizes <provider_name> 查看可用的虚拟机大小
例：查看可用的镜像
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salt-cloud --list-images myopenstack -l debug
myopenstack：provider配置文件中定义的ID
-l debug ：开启debug模式，方便定位和调试故障。
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# salt-cloud --list-images myopenstack -l debug
Reading configuration from /etc/salt/cloud
Reading configuration from /etc/salt/master
Using cached minion ID from /etc/salt/minion_id: linux-node1.example.com
Missing configuration file: /etc/salt/cloud.providers
Including configuration from '/etc/salt/cloud.providers.d/openstack.conf'
Reading configuration from /etc/salt/cloud.providers.d/openstack.conf
Missing configuration file: /etc/salt/cloud.profiles
Configuration file path: /etc/salt/cloud
Insecure logging configuration detected! Sensitive data may be logged.
salt-cloud starting
/usr/lib/python2.7/site-packages/novaclient/v1_1/__init__.py:30: UserWarning: Module novaclient.v1_1 is deprecated (taken as a basis for novaclient.v2). The preferable way to get client class or object you can find in novaclient.client module.
warnings.warn("Module novaclient.v1_1 is deprecated (taken as a basis for "
Could not LazyLoad parallels.avail_sizes
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LazyLoaded parallels.avail_locations
LazyLoaded proxmox.avail_sizes
Could not LazyLoad saltify.destroy
Could not LazyLoad saltify.avail_sizes
Could not LazyLoad saltify.avail_images
Could not LazyLoad saltify.avail_locations
LazyLoaded rackspace.reboot
Could not LazyLoad openstack.list_locations
LazyLoaded rackspace.list_locations
OpenStack authenticating using password
LazyLoaded nested.output
myopenstack:
----------
openstack:
----------
cirros:
----------
driver:
extra:
----------
created:
2015-12-13T14:24:05Z
metadata:
----------
minDisk:
0
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minRam:
0
progress:
100
serverId:
None
status:
ACTIVE
updated:
2015-12-13T14:24:05Z
get_uuid:
id:
c503fb83-7d52-40e9-b1cc-4773e650986e
name:
cirros
uuid:
2986f30365f55599f838f656a51acdaec1fa81a2
new:
----------
driver:
extra:
----------
created:
2015-12-25T09:17:50Z
metadata:
----------
minDisk:
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0
minRam:
0
progress:
100
serverId:
None
status:
ACTIVE
updated:
2015-12-25T09:17:57Z
get_uuid:
id:
fdd664b3-ebf2-4904-815f-0d1cdf9955d4
name:
new
uuid:
9f4f8a437ebc8123c1a8725156ee91566928d9f0
可以看到，当前有两个可用的镜像，cirros 和new ，并且可以看到更过镜像的信息。
4 编写profile配置文件，告诉salt-cloud创建虚拟机的细节，后期创建虚拟机时只需要调用该名字即可。
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# vim openstack_web.conf
web-node:
provider: myopenstack
size: m1.tiny
image: new
ssh_key_file: /root/.ssh/id_rsa
ssh_key_name: mykey
ssh_interface: private_ips
networks:
- fixed:
- 2c4c9edc-dbb8-467c-bc67-a2c6ff23d885
minion:
master: 192.168.56.11
grains:
role: webserver
5 创建虚拟机
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# salt-cloud -p web-node test -l debug
-p 指定profile中虚拟机ID名称
6 查看验证：
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# nova list
--------------------+------+--------+------------+-------------+---------------------+
| ID | Name | Status | Task State | Power State | Networks |
+-------------------+------+--------+------------+-------------+---------------------+
| b4035529-6cd7-4b9b-a6e9-c63d5bfb2d4b | test | ACTIVE | - | Running | flat=192.168.56.118 |
+-------------------+------+--------+------------+-------------+---------------------+
通过上面的配置文件，salt-cloud不仅能够创建虚拟机，还能够在虚拟机里安装salt-minion，
并自动添加到salt-master认证里面去（还设置了一个grains哦，很方便吧）
更多细节请看官网地址：https://docs.saltstack.com/en/latest/topics/cloud/openstack.html
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