无法使用python访问azure密钥库机密

Question

我已经能够通过外部web应用程序使用oauth rest api访问azure key vault，但出于某种原因，我无法从密钥中检索机密。经过长时间的研究，我发现用powershell和C#可以做到这一点，但还没有找到用Python解决方案。有人知道python是否有可能，或者有一种方法可以模拟powershell正在做什么吗？以下是检索秘密的代码：

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 portal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，“授权应用程序”选项被锁定，我无法添加我的应用程序，这可能是我的问题的根本原因？？截图

Answer 1

如果您希望使用Azure SDK更容易地访问机密，可以使用Python中的Key Vault来替换Azure-KeyVault:

• Azure-KeyVault-Certificates（迁移指南）
• Azure-keyvault-keys（迁移指南）
• Azure-KeyVault-Secrets（迁移指南）

azure-identity也是应该与这些一起用于身份验证的包。

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"

通过设置与client_id、secret和tunner相对应的环境变量，可以提供与用于ServicePrincipalCredentials相同的凭据：

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

（我使用Python开发Azure SDK）