Question

我正在尝试使用novaclient Python API获取我在Rackspace帐户上的块存储卷列表。这是我正在使用的代码：

from rackspace_auth_openstack.plugin import RackspaceAuthPlugin from rackspace_auth_openstack.plugin import auth_url_us

from novaclient.client import Client nova = Client(version = 2,
              username = '******',
              project_id = '******',
              api_key = '******************************',
              region_name = 'DFW',
              auth_system = 'rackspace',
              auth_plugin = RackspaceAuthPlugin(),
              auth_url = auth_url_us())

print nova.servers.list() print nova.volumes.list()

所有库都是使用pip install --upgrade rackspace-novaclient安装的，所以我应该使用最新版本的库。以下是运行上述代码的结果：

$ python test.py 
[<Server: svr01>, <Server: svr02>]
Traceback (most recent call last):
  File "test.py", line 16, in <module>
    print nova.volumes.list()
  File "/usr/lib/python2.7/site-packages/novaclient/v1_1/volumes.py", line 95, in list
    return self._list("/volumes/detail%s" % query_string, "volumes")
  File "/usr/lib/python2.7/site-packages/novaclient/base.py", line 64, in _list
    _resp, body = self.api.client.get(url)
  File "/usr/lib/python2.7/site-packages/novaclient/client.py", line 283, in get
    return self._cs_request(url, 'GET', **kwargs)
  File "/usr/lib/python2.7/site-packages/novaclient/client.py", line 260, in _cs_request
    **kwargs)
  File "/usr/lib/python2.7/site-packages/novaclient/client.py", line 242, in _time_request
    resp, body = self.request(url, method, **kwargs)
  File "/usr/lib/python2.7/site-packages/novaclient/client.py", line 236, in request
    raise exceptions.from_response(resp, body, url, method)
novaclient.exceptions.NotFound: Not found (HTTP 404)

服务器列表API调用有效，所以我很确定我正在进行身份验证。 CLI命令nova volume-list正常工作，因此看起来我的代码中缺少一些内容。

Answer 1

由于Cloud Block Storage API位于不同的端点，因此您必须指定service_type

from rackspace_auth_openstack.plugin import RackspaceAuthPlugin, auth_url_us

from novaclient.client import Client
nova = Client(version = 2,
              username = '******',
              project_id = '******',
              api_key = '******************************',
              region_name = 'DFW',
              auth_system = 'rackspace',
              auth_plugin = RackspaceAuthPlugin(),
              auth_url = auth_url_us(),
              service_type = 'volume') # Right here

print nova.volumes.list()

Answer 2

我已对此进行了测试，并确认novaclient在使用其CLI和使用其Python模块时表现不同。我已将此问题转发给Rackspace中的团队，该团队致力于novaclient;我希望其中一位能够对此有所了解。

使用novaclient Python API获取Rackspace的块存储卷列表

2 个答案: