Libcloud ECS访问

Question

尝试为一个项目测试libcloud的ECS驱动程序。

我写了一个简单的测试：

with open("conf.json") as f:
    data = json.loads(f.read())

driver = get_driver(getattr(Provider,'ECS'))

with open('.cloud_credentials/'+data['provider']+'/access_id', 'r') as myfile:
    ACCESS_KEY_ID = myfile.read().replace('\n', '')
    print ACCESS_KEY_ID

with open('.cloud_credentials/'+data['provider']+'/secret_key', 'r') as myfile:
    SECRET_KEY = myfile.read().replace('\n', '')
    print SECRET_KEY


timer.start()
conn = driver(access_id = ACCESS_KEY_ID,
              secret = SECRET_KEY,
              region = 'us-east-1')
timer.stop()


cluster = conn.create_cluster('pippo','us-east-1')

但是，运行它会产生以下错误：

Traceback (most recent call last):
  File "launch.py", line 32, in <module>
    cluster = conn.create_cluster('pippo',data['region'])
  File "/home/sergio/anaconda2/lib/python2.7/site-packages/libcloud/container/drivers/ecs.py", line 151, in create_cluster
    headers=self._get_headers('CreateCluster')
  File "/home/sergio/anaconda2/lib/python2.7/site-packages/libcloud/common/base.py", line 604, in request
    headers=headers, stream=stream)
  File "/home/sergio/anaconda2/lib/python2.7/site-packages/libcloud/http.py", line 212, in request
    verify=self.verification
  File "/home/sergio/anaconda2/lib/python2.7/site-packages/requests/sessions.py", line 468, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/sergio/anaconda2/lib/python2.7/site-packages/requests/sessions.py", line 576, in send
    r = adapter.send(request, **kwargs)
  File "/home/sergio/anaconda2/lib/python2.7/site-packages/requests/adapters.py", line 437, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='ecs.%s.amazonaws.com', port=443): Max retries exceeded with url: / (Caused by NewConnectionError('<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x7f5f16dca950>: Failed to establish a new connection: [Errno -2] Name or service not known',))

我认为问题出在包含%s的主机字符串上。在库中挖掘看起来该字符串是在文件中初始化的虚拟字符串：

/libcloud/container/drivers/ecs.py

我假设在这些文件中的某个地方应该有一个应该覆盖base-string的函数，这个函数可能因为某些原因没有被调用，但是，作为libcloud库的新手，很难找到罪魁祸首。

奇怪的是，检查正在发送的标头，看起来它们包含正确的(？)地址：

headers: {'Host': u'ecs.us-east-1.amazonaws.com', 'User-Agent': 'libcloud/2.2.1 (Amazon Elastic Container Service) ', 'Content-Type': 'application/x-amz-json-1.1', 'Accept-Encoding': 'gzip,deflate', 'x-amz-target': 'AmazonEC2ContainerServiceV20141113.CreateCluster'}

有没有更有经验的人可以给我指出正确的方向？我将不胜感激。

Answer 1

这看起来像是一个bug，这不是你做的事情。