通过 ARM/msdeploy 部署到 Azure Web 应用程序而不删除现有文件

Question

当使用常规 msdeploy（又名 WebDeploy，用于 Visual Studio 或 VSTS 发布）部署到 Azure Web 应用程序（又名 Azure 应用程序服务）时，您可以选择不删除目标位置的现有文件.

但是当使用 ARM extensions/msdeploy 提供程序（例如通过 ARM 模板）时，默认情况下始终会删除现有文件。有没有办法覆盖它而不破坏现有文件？

Answer 1

Azure Web App 支持 DoNotDeleteRule 的方式是通过 addOnPackages 架构元素。

addOnPackages 隐式使用 DoNotDelete 规则。因此，如果您想应用包而不删除现有站点中的文件，请在 addOnPackages 数组中指定它，然后不要在外部 MSDeploy 对象中定义任何内容。例如：

{
    "properties": {
        "parameters": {
            "appName": {
                "value": "mysite"
            },
            "location":{
                "value": "USAAnywhere"
            }
        },
        "template": {
            "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
            "contentVersion": "1.0.0-r188+188.764a8a7798ecc6ebb752343c6f8e6be2903ba711",
            "parameters": {
                "appName": {
                    "type": "string"
                },
                "location": {
                    "type": "string"
                }
            },
            "resources": [
                {
                    "apiVersion": "2016-08-01",
                    "name": "[parameters('appName')]",
                    "location": "[parameters('location')]",
                    "type": "Microsoft.Web/sites",
                    "resources": [
                        {
                            "apiVersion": "2016-08-01",
                            "name": "MSDeploy",
                            "type": "Extensions",
                            "dependsOn": [
                                "[concat('Microsoft.Web/Sites/', parameters('appName'))]"
                            ],
                            "properties": {
                                "addOnPackages" : [
                                    {
                                        "packageUri": "https://mystorageblob.blob.core.windows.net/package/my_webdeploy_package.zip",
                                        "AppOffline": true,
                                        "setParameters": {
                                            "IIS Web Application Name": "[parameters('appName')]",
                                         }
                                    }
                                ]
                            }
                        }
                    ],
                    "properties" : {}
                }
            ]
        },
        "mode": "Incremental"
    }
}

addOnPackages 还允许在单个 MSDeploy ARM 模板中使用多个包；外层会删除现有站点的文件，addOnPackages 是附加的，不会删除外层包。例如：

{
    "properties": {
        "parameters": {
            "appName": {
                "value": "mysite"
            },
            "location":{
                "value": "USAAnywhere"
            }
        },
        "template": {
            "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
            "contentVersion": "1.0.0-r188+188.764a8a7798ecc6ebb752343c6f8e6be2903ba711",
            "parameters": {
                "appName": {
                    "type": "string"
                },
                "location": {
                    "type": "string"
                }
            },
            "resources": [
                {
                    "apiVersion": "2016-08-01",
                    "name": "[parameters('appName')]",
                    "location": "[parameters('location')]",
                    "type": "Microsoft.Web/sites",
                    "resources": [
                        {
                            "apiVersion": "2016-08-01",
                            "name": "MSDeploy",
                            "type": "Extensions",
                            "dependsOn": [
                                "[concat('Microsoft.Web/Sites/', parameters('appName'))]"
                            ],
                            "properties": {
                                "packageUri": "https://mystorageblob.blob.core.windows.net/package/my_webdeploy_package.zip",
                                "dbType": "None",
                                "connectionString": "",
                                "AppOffline": true,
                                "SkipAppData": true,
                                "setParameters": {
                                    "IIS Web Application Name": "[parameters('appName')]"
                                },
                                "addOnPackages" : [
                                    {
                                        "packageUri": "https://mystorageblob.blob.core.windows.net/package/my_first_add_on_package.zip",
                                        "AppOffline": true,
                                        "setParameters": {
                                            "IIS Web Application Name": "[parameters('appName')]",
                                         }
                                    },
                                    {
                                        "packageUri": "https://mystorageblob.blob.core.windows.net/package/my_second_add_on_package.zip",
                                        "setParameters": {
                                            "IIS Web Application Name": "[parameters('appName')]",
                                        }
                                    }
                                ]
                            }
                        }
                    ],
                    "properties" : {}
                }
            ]
        },
        "mode": "Incremental"
    }
}