使用python客户端从openstach中的卷创建实例
我正在尝试使用python客户端从openstack中的可引导卷创建一个实例 我采取的步骤如下: 步骤1:创建一个具有100GB映像“Centos”的卷。 步骤2:使用我在步骤1中创建的卷创建一个实例 但是,我一定是做错了什么,或者遗漏了一些信息,所以无法完成任务 以下是我在python shell中的命令使用python客户端从openstach中的卷创建实例,python,openstack,novaclient,openstack-cinder,Python,Openstack,Novaclient,Openstack Cinder,我正在尝试使用python客户端从openstack中的可引导卷创建一个实例 我采取的步骤如下: 步骤1:创建一个具有100GB映像“Centos”的卷。 步骤2:使用我在步骤1中创建的卷创建一个实例 但是,我一定是做错了什么,或者遗漏了一些信息,所以无法完成任务 以下是我在python shell中的命令 import time, getpass from cinderclient import client from novaclient.client import Client pro
import time, getpass
from cinderclient import client
from novaclient.client import Client
project_name = 'project'
region_name = 'region'
keystone_link = 'https://keystone.net:5000/v2.0'
network_zone = "Public"
key_name = 'key_pair'
user = 'user'
pswd = getpass.getpass('Password: ')
# create a connection
cinder = client.Client('1', user, pswd, project_name, keystone_link, region_name = region_name)
# get the volume id that we will attach
print(cinder.volumes.list())
[<Volume: 1d36203e-b90d-458f-99db-8690148b9600>, <Volume: d734f5fc-87f2-41dd-887e-c586bf76d116>]
vol1 = cinder.volumes.list()[1]
vol1.id
block_device_mapping = {'device_name': vol1.id, 'mapping': '/dev/vda'}
### +++++++++++++++++++++++++++++++++++++++++++++++++++++ ###
# now create a connection with nova and create then instance object
nova = Client(2, user, pswd, project_name, keystone_link, region_name = region_name)
# find the image
image = nova.images.find(name="NETO CentOS 6.4 x86_64 v2.2")
# get the flavor
flavor = nova.flavors.find(name="m1.large")
#get the network and attach
network = nova.networks.find(label=network_zone)
nics = [{'net-id': network.id}]
# get the keyname and attach
key_pair = nova.keypairs.get(key_name)
s1 = 'nova-vol-test'
server = nova.servers.create(name = s1, image = image.id, block_device_mapping = block_device_mapping, flavor = flavor.id, nics = nics, key_name = key_pair.name)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.6/site-packages/novaclient/v1_1/servers.py", line 902, in create
**boot_kwargs)
File "/usr/lib/python2.6/site-packages/novaclient/v1_1/servers.py", line 554, in _boot
return_raw=return_raw, **kwargs)
File "/usr/lib/python2.6/site-packages/novaclient/base.py", line 100, in _create
_resp, body = self.api.client.post(url, body=body)
File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 490, in post
return self._cs_request(url, 'POST', **kwargs)
File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 465, in _cs_request
resp, body = self._time_request(url, method, **kwargs)
File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 439, in _time_request
resp, body = self.request(url, method, **kwargs)
File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 433, in request
raise exceptions.from_response(resp, body, url, method)
novaclient.exceptions.BadRequest: Block Device Mapping is Invalid: failed to get volume /dev/vda. (HTTP 400) (Request-ID: req-2b9db4e1-f24f-48c6-8660-822741ca52ad)
>>>
导入时间,getpass
从cinderclient导入客户端
从novaclient.client导入客户端
项目名称='project'
地区名称='地区'
keystone_linkhttps://keystone.net:5000/v2.0'
网络区域=“公共”
密钥名称='密钥对'
用户='user'
pswd=getpass.getpass('密码:')
#创建连接
cinder=client.client('1',用户,pswd,项目名称,keystone链接,区域名称=区域名称)
#获取要附加的卷id
打印(cinder.volumes.list())
[, ]
vol1=cinder.volumes.list()[1]
卷1.id
block_device_mapping={'device_name':vol1.id,'mapping':'/dev/vda'}
### +++++++++++++++++++++++++++++++++++++++++++++++++++++ ###
#现在创建与nova的连接,然后创建实例对象
nova=客户端(2,用户,pswd,项目名称,keystone链接,区域名称=区域名称)
#找到图像
image=nova.images.find(name=“NETO CentOS 6.4 x86_64 v2.2”)
#尝到味道
flavor=nova.flavors.find(name=“m1.large”)
#获取网络并连接
network=nova.networks.find(label=network\u zone)
NIC=[{'net-id':network.id}]
#获取密钥名并附加
key\u pair=nova.keypairs.get(key\u name)
s1=‘新星体积测试’
server=nova.servers.create(name=s1,image=image.id,block\u device\u mapping=block\u device\u mapping,flavor=flavor.id,nics=nics,key\u name=key\u pair.name)
回溯(最近一次呼叫最后一次):
文件“”,第1行,在
文件“/usr/lib/python2.6/site packages/novaclient/v1_1/servers.py”,第902行,在create中
**靴子(kwargs)
文件“/usr/lib/python2.6/site packages/novaclient/v1_1/servers.py”,第554行,在_boot中
return_raw=return_raw,**kwargs)
文件“/usr/lib/python2.6/site packages/novaclient/base.py”,第100行,在创建
_resp,body=self.api.client.post(url,body=body)
文件“/usr/lib/python2.6/site packages/novaclient/client.py”,第490行,在post中
返回自我请求(url,'POST',**kwargs)
文件“/usr/lib/python2.6/site packages/novaclient/client.py”,第465行,在请求中
resp,body=self.\u time\u请求(url,方法,**kwargs)
文件“/usr/lib/python2.6/site packages/novaclient/client.py”,第439行,在时间请求中
resp,body=self.request(url,方法,**kwargs)
文件“/usr/lib/python2.6/site packages/novaclient/client.py”,第433行,在请求中
从_响应(resp、body、url、method)引发异常
novaclient.exceptions.BadRequest:块设备映射无效:无法获取卷/dev/vda。(HTTP 400)(请求ID:req-2b9db4e1-f24f-48c6-8660-822741ca52ad)
>>>
我试图找到任何文档,这样我就可以自己解决这个问题,但是,我无法做到
如果有人曾经尝试过这个,我会很感激有人在这方面的帮助
谢谢,
Murtaza我使用这本字典就可以让它正常工作:
block_dev_mapping = {'vda':'uuid of the volume you want to use'}
然后我在create方法中调用它,如下所示:
instance = nova.servers.create(name="python-test3", image='', block_device_mapping=block_dev_mapping,
flavor=flavor, key_name="my-keypair", nics=nics)
我确实尝试过这个block_dev_mapping={'vda':'uuid of the volume you want use'}和其他变体,但是,它们似乎都不起作用。令人惊讶的是,它现在起作用了。谢谢你的回复。@MurtazaPitalwala那么,我们知道为什么它现在能令人惊讶地工作吗?