无法使用 python 访问 Azure Key Vault 机密

Question

我已经能够通过我的外部 Web 应用程序使用 oauth rest api 访问 azure key vault，但由于某种原因我无法从密钥中检索秘密。经过长时间的研究，我发现可以使用 powershell 和 c# 执行此操作，但仍未找到 python 的任何解决方案。任何人都知道 python 是否可行，或者有没有办法模拟 powershell 正在做的事情？这是检索秘密的代码：

def getSecret(vault_name, secret_name, secret_version = ''):
    #Get acess token to azure account
    data = { "grant_type" : "client_credentials", 
            "client_id" : 'appidxx', 
            "client_secret" : 'appsecretxx', 
            "resource" : "https://vault.azure.net"
        }
    headers = { "Content-Type" : "application/x-www-form-urlencoded" }
    r = requests.post("https://login.windows.net/{}/oauth2/token".format('my tenant id'), data=data, headers=headers)
    access_token = r.json()['access_token']
    #Get secret from KeyVault
    headers = {"Authorization":"Bearer {}".format(access_token) }
    r = requests.get('https://{}.vault.azure.net/secrets/{}/{}?api-version=2015-06-01'.format(vault_name, secret_name, secret_version), headers=headers)
    result = r.json()
    if 'value' in result.keys():
        return result["value"]
    else: 
        return 'Secret Not Found'

def searchSecret(secret_name, secret_version = ''):
subscription_id = 'subscription id'    
credentials = ServicePrincipalCredentials(
        client_id= 'appidxx',
        secret= 'appsecretxx',
        tenant= 'tenantidxx'
    )

    kvm_client = KeyVaultManagementClient(credentials,  subscription_id )
    for vault in kvm_client.vaults.list():
        #return when secret found in vault
        secret = getSecret(vault.name, secret_name, secret_version = '')
        if (secret != 'Secret Not Found'):
            return secret
    return 'Secret Not Found'

此外，我已经在 Azure 门户中注册了我的应用程序并授予了对我的密钥和机密的权限，但是我注意到当通过访问策略授予对我的应用程序的访问权限时，"Authorized application" 选项被锁定，我无法添加我的应用程序，这可能是我问题的根本原因？？ screenshot

Answer 1

首先，您应该授予您的服务主体访问您的密钥保管库的权限。像这样 https://imgur.com/a/mrth1.

我使用 getSecret('shui','shui02','b89f7498e8c64b6c9365e0eda55b4b5b') 测试了您的代码，它对我有用。

import requests
def getSecret(vault_name, secret_name, secret_version = ''):
    #Get acess token to azure account
    data = { "grant_type" : "client_credentials", 
            "client_id" : '*******', 
            "client_secret" : '*******', 
            "resource" : "https://vault.azure.net"
        }
    headers = { "Content-Type" : "application/x-www-form-urlencoded" }
    r = requests.post("https://login.windows.net/{}/oauth2/token".format('*******'), data=data, headers=headers)
    access_token = r.json()['access_token']
    #Get secret from KeyVault
    headers = {"Authorization":"Bearer {}".format(access_token) }
    r = requests.get('https://{}.vault.azure.net/secrets/{}/{}?api-version=2015-06-01'.format(vault_name, secret_name, secret_version), headers=headers)
    print r
    result = r.json()
    if 'value' in result.keys():
        return result["value"]
    else: 
        return 'Secret Not Found'
getSecret('shui','shui02','b89f7498e8c64b6c9365e0eda55b4b5b')

Answer 2

如果您想使用 Azure SDK 更轻松地访问机密，Python 中有用于 Key Vault 的新包取代了 azure-keyvault:

azure-identity 也是应该与这些一起用于身份验证的包。

可以在 azure-sdk-for-python GitHub repository 上找到有关使用机密库的文档，这里有一个检索机密的示例：

from azure.identity import DefaultAzureCredential
from azure.keyvault.secrets import SecretClient
from azure.mgmt.keyvault import KeyVaultManagementClient

credential = DefaultAzureCredential()
subscription_id = "subscription id"

def getSecret(vault_url, secret_name, secret_version=None):
    client = SecretClient(vault_url, credential)
    # list the secrets in the vault
    secret_properties = client.list_properties_of_secrets()
    for secret_property in secret_properties:
        if secret_property.name == secret_name:
            # get secret from Key Vault
            return client.get_secret(secret_name, secret_version)
    return "Secret Not Found"

def searchSecret(secret_name, secret_version=None):
    kvm_client = KeyVaultManagementClient(credential, subscription_id)
    for vault in kvm_client.vaults.list():
        # return when secret found in vault
        secret = getSecret(vault.properties.vault_uri, secret_name, secret_version)
        if secret != "Secret Not Found":
            return secret
    return "Secret Not Found"

您可以通过设置对应于 client_id、secret 和 tenant:[=22= 的环境变量来提供与 ServicePrincipalCredentials 相同的凭据]

export AZURE_CLIENT_ID="appidxx"
export AZURE_CLIENT_SECRET="appsecretxx"
export AZURE_TENANT_ID="tenantidxx"

（我在 Python 中使用 Azure SDK）

无法使用 python 访问 Azure Key Vault 机密

Cannot access azure key vault secret with python

python

azure

oauth

azure-active-directory

azure-keyvault