azure - 此位置不应出现模板函数 'reference'

Question

我正在尝试使用 Microsoft.Resources/deploymentScripts 在我的模板中执行脚本，但我也正在尝试在同一模板中声明用户分配的身份

{
    "type": "Microsoft.ManagedIdentity/userAssignedIdentities",
    "name": "scriptIdentity",
    "apiVersion": "2018-11-30",
    "location": "[resourceGroup().location]"
},
{
    "type": "Microsoft.Resources/deploymentScripts",
    "apiVersion": "2019-10-01-preview",
    "name": "updateAppServiceConfigMountPointScript",
    "dependsOn": [
        "[resourceId('Microsoft.Web/sites/config', parameters('appservice_name'), 'web')]",
        "[resourceId('Microsoft.ManagedIdentity/userAssignedIdentities', 'scriptIdentity')]",
        "[resourceId('Microsoft.Storage/storageAccounts/blobServices', parameters('storageAccounts_name'), 'default')]"
    ],
    "location": "[resourceGroup().location]",
    "kind": "AzurePowerShell",
    "identity": {
        "type": "userAssigned",
        "userAssignedIdentities": {
            "principalId": "[reference(resourceId('Microsoft.ManagedIdentity/userAssignedIdentities', 'scriptIdentity'), '2019-08-01', 'full').identity.principalId]",
            "clientId": "[reference(resourceId('Microsoft.ManagedIdentity/userAssignedIdentities', 'scriptIdentity'), '2019-08-01', 'full').identity.clientId]"
        }
    },
    "properties": {
        "environmentVariables": [
            {
                "name": "account_name",
                "value": "[parameters('storageAccounts_name')]"
            },
            {
                "name": "app_name",
                "value": "[parameters('appservice_name')]"
            },
            {
                "name": "resource_group_name",
                "value": "[resourceGroup().name]"
            }
            
        ],
        "scriptContent": "$access_key = ((az storage account keys list --account-name $account_name) | ConvertFrom-JSON).value[0]; az webapp config storage-account add --name \\\"$app_name\\\" --resource-group \\\"$resource_group_name\\\" --custom-id \\\"frontend\\\" --storage-type \\\"AzureBlob\\\" --account-name \\\"stelckstorageaccount\\\" --share-name \\\"frontend\\\" --mount-path \\\"/home/site/wwwroot/frontend\\\" --access-key \\\"$access_key\\\"",
        "timeout": "PT1M",
        "cleanupPreference": "OnSuccess"
    }

模板在这部分失败:

"userAssignedIdentities": {
    "principalId": "[reference(resourceId('Microsoft.ManagedIdentity/userAssignedIdentities', 'scriptIdentity'), '2019-08-01', 'full').identity.principalId]",
    "clientId": "[reference(resourceId('Microsoft.ManagedIdentity/userAssignedIdentities', 'scriptIdentity'), '2019-08-01', 'full').identity.clientId]"
}

出现以下错误:

Deployment template validation failed: 'The template resource 'updateAppServiceConfigMountPointScript' at line '930' and column '9' is not valid: The template function 'reference' is not expected at this location. Please see https://aka.ms/arm-template-expressions for usage details.. Please see https://aka.ms/arm-template-expressions for usage details.'. (Code: InvalidTemplate)

如何在没有引用函数的情况下在部署脚本中引用分配的身份？

相关:'Microsoft.Web/sites/config' azureStorageAccounts fails due to 500 InternalError

Answer 1

我在 Bicep 模板中遇到了同样的问题，并努力弄清楚如何实现 bmoore-msft 的答案。虽然这不是原始问题的答案，但我会将其发布在这里，以防像我这样的其他人偶然发现此页面。

技巧是使用字符串插值来获取冒号左侧的身份 ID

identity: {
  type: 'UserAssigned'
  userAssignedIdentities: {
    '${scriptIdentity.id}': {}
  }
}