我希望你能帮助我解决以下问题。
我们希望在一些子应用程序/虚拟应用程序上部署Azure Web App。然而，我们在互联网上研究的内容并不是很精确，但我怀疑这不能使用ARM完成。
我们感谢任何人提供信息，帮助我们实现目标，或者使用此技术是不可能的，或者它是Azure错误。
我们尝试将“IIS Web应用程序名称”设置为
1.“[parameters（'appName'）]/subapp1”
1.“/subapp1”
1.“subapp1”
1.“默认网站/子应用程序1”
我们使用扩展：

1. MSDeploy，
2. addOnPackages和
3. ZipDeploy
   结果总是相同的，文件仍保留在Web应用程序的根目录中。
   这是我们正在使用的ARM模板：

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "location": {
            "type": "string",
            "metadata": {
                "description": "Location of resources"
            },
            "defaultValue": "[resourceGroup().location]"
        },
        "_artifactsLocation": {
            "type": "string",
            "metadata": {
                "description": "The base URI where artifacts required by this template are located including a trailing '/'"
            },
            "defaultValue": "[deployment().properties.templateLink.uri]"
        },
        "_artifactsLocationSasToken": {
            "type": "securestring",
            "metadata": {
                "description": "The sasToken required to access _artifactsLocation.  When the template is deployed using the accompanying scripts, a sasToken will be automatically generated. Use the defaultValue if the staging location is not secured."
            },
            "defaultValue": ""
        },
        "appName": {
            "type": "string",
            "metadata": {
                "description": "App Name"
            },
            "defaultValue": "testapp123"
        }
    },
    "variables": {
        "existingPlanAppServiceName": "[concat('PlanAppService-',uniqueString(resourceGroup().id))]"
    },
    "resources": [
        {
            "apiVersion": "2022-03-01",
            "name": "[variables('existingPlanAppServiceName')]",
            "type": "Microsoft.Web/serverfarms",
            "location": "[parameters('location')]",
            "kind": "",
            "tags": {},
            "dependsOn": [],
            "properties": {
                "name": "[variables('existingPlanAppServiceName')]",
                "workerSize": "18",
                "workerSizeId": "18",
                "numberOfWorkers": "1",
                "zoneRedundant": false
            },
            "sku": {
                "Tier": "Premium0V3",
                "Name": "P0V3"
            }
        },
        {
            "apiVersion": "2022-03-01",
            "name": "[parameters('appName')]",
            "type": "Microsoft.Web/sites",
            "location": "[parameters('location')]",
            "tags": {},
            "dependsOn": [
                "[resourceId('Microsoft.Web/serverfarms', variables('existingPlanAppServiceName'))]"
            ],
            "properties": {
                "name": "[parameters('appName')]",
                "siteConfig": {
                    "metadata": [
                        {
                            "name": "CURRENT_STACK",
                            "value": "dotnet"
                        }
                    ],
                    "virtualApplications": [
                        {
                            "virtualPath": "/",
                            "physicalPath": "site\\wwwroot",
                            "preloadEnabled": false
                        },
                        {
                            "virtualPath": "/subapp1",
                            "physicalPath": "site\\wwwroot\\subapp1",
                            "preloadEnabled": true
                        }
                    ],
                    "phpVersion": "OFF",
                    "netFrameworkVersion": "v4.0",
                    "alwaysOn": true,
                    "ftpsState": "Disabled",
                    "use32BitWorkerProcess": false,
                    "http20Enabled": true,
                    "websiteTimeZone": "SA Pacific Standard Time"
                },
                "serverFarmId": "[resourceId('Microsoft.Web/serverfarms', variables('existingPlanAppServiceName'))]",
                "clientAffinityEnabled": false,
                "httpsOnly": true,
                "publicNetworkAccess": "Enabled"
            },
            "resources": [
                {
                    "type": "Microsoft.Web/sites/extensions",
                    "apiVersion": "2022-03-01",
                    "name": "[concat(parameters('appName'), '/MSDeploy')]",
                    "dependsOn": [
                        "[resourceId('Microsoft.Web/sites', parameters('appName'))]"
                    ],
                    "properties": {
                        "packageUri": "[uri(concat(parameters('_artifactsLocation'),'filesApp.zip'),parameters('_artifactsLocationSasToken'))]",
                        "dbType": "None",
                        "connectionString": "",
                        "appOffline": true,
                        "setParameters": {
                            "IIS Web Application Name": "[concat(parameters('appName'),'/subapp1')]"
                        }
                    }
                }
            ]
        }
    ]
}

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非常感谢您的帮助提前。