ARM 模板中的 KeyVault 参考问题

Question

我正在尝试创建一个主密钥保管库，其中将包含所有证书以作为某个用户进行身份验证。

我有 2 个服务主体 => 一个用于我的应用程序，一个用于部署。这个想法是部署服务主体可以访问 Key Vault 并将位于那里的证书添加到 Web 应用程序的存储中。

我已经创建了服务主体，并已授予他对密钥保管库的所有权限。我还为该密钥保管库启用了 ARM 模板中的访问机密。

使用 powershell，我能够以部署 SP 身份登录并检索机密（证书）。

但是，这在部署引用密钥保管库的 ARM 模板时不起作用。我收到以下错误：

New-AzureRmResourceGroupDeployment : 11:16:44 - Resource Microsoft.Web/certificates 'test-certificate' failed with message '{
  "Code": "BadRequest",
  "Message": "The service does not have access to '/subscriptions/98f06e7e-1016-4088-843f-62690f3bb306/resourcegroups/rg-temp/providers/microsoft.keyvault/vaults/master-key-vault' Key 
Vault. Please make sure that you have granted necessary permissions to the service to perform the request operation.",
  "Target": null,
  "Details": [
    {
      "Message": "The service does not have access to '/subscriptions/xxxx/resourcegroups/xxx/providers/microsoft.keyvault/vaults/master-key-vault' Key 
Vault. Please make sure that you have granted necessary permissions to the service to perform the request operation."
    },

我的 ARM 模板如下所示：

    {
     "type":"Microsoft.Web/certificates",
     "name":"test-certificate",
     "apiVersion":"2016-03-01",
     "location":"[resourceGroup().location]",
     "properties":{
        "keyVaultId":"[resourceId('rg-temp', 'Microsoft.KeyVault/vaults', 'master-key-vault')]",
        "keyVaultSecretName":"kv-certificate-test",
        "serverFarmId":"[resourceId('Microsoft.Web/serverfarms', 'asp-test')]"
     }
  },

这是一个错误吗？因为我能够使用 Deploy SP 检索证书：

 $key = Get-AzureKeyVaultSecret -VaultName "master-key-vault" -Name "testenvironmentcertificate"

这是我的 ARM 模板：（注意，Key Vault 位于另一个资源组中而不是 ARM 模板中的资源）

{
"$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json",
"contentVersion": "1.0.0.0",
"parameters": {},
"variables": {},
"resources": [
    {
     "type":"Microsoft.Web/certificates",
     "name":"test-certificate",
     "apiVersion":"2016-03-01",
     "location":"[resourceGroup().location]",
     "properties":{
        "keyVaultId":"/subscriptions/xxx/resourceGroups/rg-temp/providers/Microsoft.KeyVault/vaults/xxx",
        "keyVaultSecretName":"testcert",
        "serverFarmId":"[resourceId('Microsoft.Web/serverfarms', 'asp-test')]"
     }
  },
    {
        "name": "wa-test1",
        "type": "Microsoft.Web/sites",
        "location": "[resourceGroup().location]",
        "apiVersion": "2016-08-01",
        "dependsOn": [
            "[concat('Microsoft.Web/serverfarms/', 'asp-test')]"
        ],
        "tags": {
            "[concat('hidden-related:', resourceGroup().id, '/providers/Microsoft.Web/serverfarms/asp-test')]": "Resource",
            "displayName": "wa-test1"
        },
        "properties": {
            "name": "wa-test1",
            "serverFarmId": "[resourceId('Microsoft.Web/serverfarms', 'asp-test')]"
        }
    },
    {
        "name": "asp-test",
        "type": "Microsoft.Web/serverfarms",
        "location": "[resourceGroup().location]",
        "apiVersion": "2014-06-01",
        "dependsOn": [],
        "tags": {
            "displayName": "appServicePlan"
        },
        "properties": {
            "name": "asp-test",
            "sku": "Free",
            "workerSize": "Small",
            "numberOfWorkers": 1
        }
    }
]
}

Answer 1

我相信您缺少资源提供程序访问 Key Vault 的权限，因此 WebApp 使用自己的资源提供程序来执行此操作，您需要授予该 RP 访问 Key Vault 的权限：

Set-AzureRmKeyVaultAccessPolicy -VaultName KEYVAULTNAME -PermissionsToSecrets get `
   -ServicePrincipalName abfa0a7c-a6b6-4736-8310-5855508787cd

参考：

https://azure.github.io/AppService/2016/05/24/Deploying-Azure-Web-App-Certificate-through-Key-Vault.html