openstack无法从API检索身份验证令牌

Question

我正在尝试使用来自python的请求库从API检索身份验证令牌。 这是我到目前为止的尝试：

def get_token():
    data = { 
      "auth" : {
         "identity" : { 
            "methods" : [ "password" ],
            "password": { 
               "user" : { 
                  "name"  : OS_USERNAME,
                  "domain": { "name": "Default" },
                  "password": OS_PASSWORD
               }
            }
         }
      }   
    }

    r = requests.post(
    OS_AUTH_URL+'/auth/tokens',
      headers = HEADERS,
      json    = data,      # https://stackoverflow.com/questions/9733638
      verify  = False
    )
    print(r.content)
    j = json.loads(r.content)
    return j['token']['user']['id']

我在回复中得到了令牌：

{
  "token": {
    "issued_at": "2018-07-03T11:03:59.000000Z",
    "audit_ids": [
      "Fg1ywtZBQ1CkigCw70If9g"
    ],
    "methods": [
      "password"
    ],
    "expires_at": "2018-07-03T12:03:59.000000Z",
    "user": {
      "password_expires_at": null,
      "domain": {
        "id": "default",
        "name": "Default"
      },
      "id": "e0dc5beb383a46b98dad824c5d76e719",
      "name": "admin"
    }
  }
}

但是，当我重复使用此令牌时，例如，获取项目列表：

def get_tenantID():
  r = requests.get(
    OS_AUTH_URL+'/auth/projects',
    headers = HEADERS,
    verify  = False
  )
return r
r = get_token()
HEADERS['X-Auth-Project-Id'] = 'admin'
HEADERS['X-Auth-Token'] = r
r = get_tenantID()

我收到此错误，好像我不会被验证：

<Response [401]>
{"error": {"message": "The request you have made requires authentication.", "code": 401, "title": "Unauthorized"}}

谷歌搜索并使用openstack token issue命令告诉我通常，令牌更像是：

 gAAAAABaCo1F1CIMVlsTBeuqYH8tm2qR29tbkmUL4vZuhCNPXJI39TQ2YzL6Twoj8fNcAyLe3WhCYW2O1YpbBF0G8mo4bt7Kf0IRsoDOoJ6uWa3RYyJ5SQNoB_5n8EnVXbKPxFYOZ_iFBnaVtL1_XDrGbwsrlDeyy8lZTDdLsqY52pUhFR-7Uow

这不是我用get_token得到的。

我究竟做错了什么？

非常感谢！

Answer 1

直接使用auth API时，发出的令牌会出现在X-Subject-Token标头中。

因此，要在python示例中检索，您可以访问response.headers dict，如下所示：

token = r.headers['X-Subject-Token']

有关Keystone v3文档中的身份验证的更多信息

Answer 2

1. fetch authentication token as mentioned below: 
 r = requests.post(
 OS_AUTH_URL+'/auth/tokens',
  headers = HEADERS,
  json    = data,     
  verify  = False
 )
 token = r.headers[X-Subject-Token] 

2. Pass this token in header for further request:
 {
        'X-Auth-Token': token
    }