python - Azure Python SDK : 'ServicePrincipalCredentials' object has no attribute 'get_token'

Question

所以我有以下 Python3 脚本来列出所有虚拟机。

import os, json
from azure.mgmt.compute import ComputeManagementClient
from azure.mgmt.network import NetworkManagementClient
from azure.mgmt.resource import ResourceManagementClient, SubscriptionClient
from azure.common.credentials import ServicePrincipalCredentials

credentials = ServicePrincipalCredentials(
        client_id="xxx",
        secret="xxx",
        tenant="xxx"
        )

resource_client = ResourceManagementClient(credentials, "my-subscription")
compute_client = ComputeManagementClient(credentials, "my-subscription")
network_client = NetworkManagementClient(credentials, "my-subscription")

for vm in compute_client.virtual_machines.list_all():
    print("\tVM: {}".format(vm.name))

但由于某种原因，我收到以下错误:

Traceback (most recent call last):
  File "/Users/me/a/azure-test.py", line 17, in <module>
    for vm in compute_client.virtual_machines.list_all():
...
  File "/usr/local/lib/python3.8/site-packages/azure/core/pipeline/policies/_authentication.py", line 93, in on_request
    self._token = self._credential.get_token(*self._scopes)
AttributeError: 'ServicePrincipalCredentials' object has no attribute 'get_token'

我做错了什么吗？

Answer 1

Python 的 Azure 库当前正在更新，以共享常见的云模式，例如身份验证协议(protocol)、日志记录、跟踪、传输协议(protocol)、缓冲响应和重试。

这也会稍微改变身份验证机制。在旧版本中，azure.common 中的 ServicePrincipalCredentials 用于向 Azure 进行身份验证并创建服务客户端。

在新版本中，身份验证机制已被重新设计并被azure-identity库取代，以便为所有Azure SDK提供基于Azure Identity的统一身份验证。运行 pip install azure-identity 来获取包。

就代码而言，当时是:

from azure.common.credentials import ServicePrincipalCredentials
from azure.mgmt.compute import ComputeManagementClient

credentials = ServicePrincipalCredentials(
    client_id='xxxxx',
    secret='xxxxx',
    tenant='xxxxx'
)

compute_client = ComputeManagementClient(
    credentials=credentials,
    subscription_id=SUBSCRIPTION_ID
)

现在是:

from azure.identity import ClientSecretCredential
from azure.mgmt.compute import ComputeManagementClient

credential = ClientSecretCredential(
    tenant_id='xxxxx',
    client_id='xxxxx',
    client_secret='xxxxx'
)

compute_client = ComputeManagementClient(
    credential=credential,
    subscription_id=SUBSCRIPTION_ID
)

然后，您可以将 list_all 方法与 compute_client 结合使用，照常列出所有虚拟机:

# List all Virtual Machines in the specified subscription
def list_virtual_machines():
    for vm in compute_client.virtual_machines.list_all():
        print(vm.name)

list_virtual_machines()

引用文献:

• Azure SDK for Python在 GitHub 上
• Migration Guide - Resource Management
• How to authenticate and authorize Python apps on Azure
• Example: Use the Azure libraries to provision a virtual machine