Openstack無法使用Rest API連接到

Question

我在虛擬機上的openstack上進行了本地安裝。 我正在嘗試使用lib cloud api連接並獲取圖像，口味等的列表。

以下是我嘗試執行的代碼

    from libcloud.compute.types import Provider
from libcloud.compute.providers import get_driver

# Authentication information so you can authenticate to DreamCompute
# copy the details from the OpenStack RC file
# https://dashboard.dreamcompute.com/project/access_and_security/api_access/openrc/

auth_username = 'admin'
auth_password = 'f882e2f4eaad434c'
TENANT_NAME = 'admin'
project_name = 'admin'
auth_url = 'http://192.168.56.101:5000/v3/tokens'
region_name = 'RegionOne'

provider = get_driver(Provider.OPENSTACK)
conn = provider(auth_username,
                auth_password,
                ex_force_auth_url=auth_url,
                ex_force_auth_version='2.0_password',
                ex_tenant_name=project_name,
                ex_force_service_type='compute',
                ex_force_service_name='compute',
                ex_force_base_url='http://192.168.56.101:8774/v2.1/29a8949bc3a04bfead0654be8e552017')


# Get the image that we want to use by its id
# NOTE: the image_id may change. See the documentation to find
# all the images available to your user
image_id = '4525d442-e9f4-4d19-889f-49ab03be93df'  
image = conn.get_image(image_id)

# Get the flavor that we want to use by its id
flavor_id = '100'
flavor = conn.ex_get_size(flavor_id)

# Create the node with the name “PracticeInstance”
# and the size and image we chose above
instance = conn.create_node(name='PracticeInstance', image=image, size=flavor)

當我運行上面的代碼時，我得到以下錯誤：

C:\Python dev\website\music\openstack>python openstack.py
Traceback (most recent call last):
  File "openstack.py", line 30, in <module>
    image = conn.get_image(image_id)
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\compute\drivers\openstack.py", line 2028, in get_image
    '/images/%s' % (image_id,)).object['image'])
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\openstack.py", line 223, in request
    raw=raw)
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\base.py", line 536, in request
    action = self.morph_action_hook(action)
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\openstack.py", line 290, in morph_action_hook
    self._populate_hosts_and_request_paths()
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\openstack.py", line 324, in _populate_hosts_and_request_paths
    osa = osa.authenticate(**kwargs)  # may throw InvalidCreds
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\openstack_identity.py", line 855, in authenticate
    return self._authenticate_2_0_with_password()
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\openstack_identity.py", line 880, in _authenticate_2_0_with_password
    return self._authenticate_2_0_with_body(reqbody)
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\openstack_identity.py", line 885, in _authenticate_2_0_with_body
    method='POST')
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\base.py", line 637, in request
    response = responseCls(**kwargs)
  File "C:\Users\C5265680\AppData\Local\Programs\Python\Python36\lib\site-packages\libcloud\common\base.py", line 157, in __init__
    message=self.parse_error())
libcloud.common.exceptions.BaseHTTPError: {"error": {"message": "The resource could not be found.", "code": 404, "title": "Not Found"}}

我已經在/ var / log / keystone中檢查了服務器中的日志，它沒有給出任何錯誤，因此我猜我能夠登錄。

也有很多例子表明，經過上述步驟，我應該能夠得到圖像/風味/服務器的列表。

不知道為什么我無法連接。 有人可以幫我嗎

Answer 1

我認為您應該修改auth_url和提供程序參數。 正如下面的論點集在我的環境中工作。

auth_username = 'admin'
auth_password = 'f882e2f4eaad434c'
TENANT_NAME = 'admin'
project_name = 'admin'
auth_url = 'http://192.168.56.101:5000'
region_name = 'RegionOne'

provider = get_driver(Provider.OPENSTACK)
conn = provider(auth_username,
                auth_password,
                ex_force_auth_url=auth_url,
                ex_force_auth_version='2.0_password',
                ex_tenant_name=project_name)

更新於2017.11.16

@ user8040338您的錯誤消息是第一個線索， The resource could not be found. 和狀態code 404 ，其消息和狀態代碼的最主要原因是錯誤的休息API網址格式。

首先，您需要檢查keystone v2.0 rest api格式 。 同時，您再次檢查Libcloud參考 。 例如，參數ex_force_auth_version已在api版本2.0_password （v2）中指定，但是auth_url變量形成了包含版本資源/v3的URL，這是錯誤的版本以及您指定的libcloud API參數使用的API。 auth_url應該是API使用情況的基本URL。

關於API每個參數的相似過程應重復進行，直到解決問題為止。