扩展资源是用于修改其他资源的资源。 例如，可以为资源分配角色。 角色分配是扩展资源类型。
有关扩展资源类型的完整列表，请参阅用于扩展其他资源的功能的资源类型。
本文介绍如何使用 Azure 资源管理器模板（ARM 模板）部署时设置扩展资源类型的作用域。 它介绍了在应用到资源时可用于扩展资源的 scope 属性。
在部署范围内应用
若要在目标部署范围内应用扩展资源类型，请将资源添加到模板，就像使用任何资源类型一样。 可用的范围是资源组、订阅、管理组和租户。 部署范围必须支持该资源类型。
以下模板部署一个锁。
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
},
"resources": [
{
"type": "Microsoft.Authorization/locks",
"apiVersion": "2016-09-01",
"name": "rgLock",
"properties": {
"level": "CanNotDelete",
"notes": "Resource Group should not be deleted."
}
}
]
}
部署到资源组时，它会锁定资源组。
az deployment group create \
--resource-group ExampleGroup \
--template-uri "https://raw.githubusercontent.com/Azure/azure-docs-json-samples/master/azure-resource-manager/scope/locktargetscope.json"
下一个示例分配角色。
{
"$schema": "https://schema.management.azure.com/schemas/2018-05-01/subscriptionDeploymentTemplate.json#",
"contentVersion": "1.0.0.1",
"parameters": {
"principalId": {
"type": "string",
"metadata": {
"description": "The principal to assign the role to"
}
},
"builtInRoleType": {
"type": "string",
"allowedValues": [
"Owner",
"Contributor",
"Reader"
],
"metadata": {
"description": "Built-in role to assign"
}
},
"roleNameGuid": {
"type": "string",
"metadata": {
"description": "The role assignment name"
}
}
},
"variables": {
"Owner": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Authorization/roleDefinitions/', '8e3af657-a8ff-443c-a75c-2fe8c4bcb635')]",
"Contributor": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Authorization/roleDefinitions/', 'b24988ac-6180-42a0-ab88-20f7382dd24c')]",
"Reader": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Authorization/roleDefinitions/', 'acdd72a7-3385-48ef-bd42-f606fba81ae7')]"
},
"resources": [
{
"type": "Microsoft.Authorization/roleAssignments",
"apiVersion": "2020-10-01-preview",
"name": "[parameters('roleNameGuid')]",
"properties": {
"roleDefinitionId": "[variables(parameters('builtInRoleType'))]",
"principalId": "[parameters('principalId')]"
}
}
],
"outputs": {}
}
部署到订阅时，它会为订阅分配角色。
az deployment sub create \
--name demoSubDeployment \
--location chinaeast \
--template-uri "https://raw.githubusercontent.com/Azure/azure-docs-json-samples/master/azure-resource-manager/scope/roletargetscope.json"
应用于资源
若要将扩展资源应用于资源，请使用 scope 属性。 将 scope 属性设置为要向其添加扩展的资源的名称。 scope 属性是扩展资源类型的根属性。
下面的示例创建一个存储帐户并对其应用角色。
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"principalId": {
"type": "string",
"metadata": {
"description": "The principal to assign the role to"
}
},
"builtInRoleType": {
"type": "string",
"allowedValues": [
"Owner",
"Contributor",
"Reader"
],
"metadata": {
"description": "Built-in role to assign"
}
},
"roleNameGuid": {
"type": "string",
"defaultValue": "[newGuid()]",
"metadata": {
"description": "A new GUID used to identify the role assignment"
}
},
"location": {
"type": "string",
"defaultValue": "[resourceGroup().location]"
}
},
"variables": {
"Owner": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Authorization/roleDefinitions/', '8e3af657-a8ff-443c-a75c-2fe8c4bcb635')]",
"Contributor": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Authorization/roleDefinitions/', 'b24988ac-6180-42a0-ab88-20f7382dd24c')]",
"Reader": "[concat('/subscriptions/', subscription().subscriptionId, '/providers/Microsoft.Authorization/roleDefinitions/', 'acdd72a7-3385-48ef-bd42-f606fba81ae7')]",
"storageName": "[concat('storage', uniqueString(resourceGroup().id))]"
},
"resources": [
{
"type": "Microsoft.Storage/storageAccounts",
"apiVersion": "2021-04-01",
"name": "[variables('storageName')]",
"location": "[parameters('location')]",
"sku": {
"name": "Standard_LRS"
},
"kind": "Storage",
"properties": {}
},
{
"type": "Microsoft.Authorization/roleAssignments",
"apiVersion": "2020-10-01-preview",
"name": "[parameters('roleNameGuid')]",
"scope": "[concat('Microsoft.Storage/storageAccounts', '/', variables('storageName'))]",
"dependsOn": [
"[variables('storageName')]"
],
"properties": {
"roleDefinitionId": "[variables(parameters('builtInRoleType'))]",
"principalId": "[parameters('principalId')]"
}
}
]
}
resourceGroup 和订阅属性仅可用于嵌套或链接部署。 在单个资源上不允许使用这些属性。 如果要部署其范围设置为其他资源组中资源的扩展资源，请使用嵌套或链接部署。
后续步骤
- 若要了解如何在模板中定义参数，请参阅 了解 ARM 模板的结构和语法。
- 有关解决常见部署错误的提示，请参阅排查使用 Azure Resource Manager 时的常见 Azure 部署错误。
- 有关部署需要 SAS 令牌的模板的信息，请参阅 使用 SAS 令牌部署专用 ARM 模板。