使用 PowerShell 备份 Web 应用Back up a web app using PowerShell

此示例脚本使用其相关资源,在应用服务中创建 Web 应用,然后为其创建一次性备份。This sample script creates a web app in App Service with its related resources, and then creates a one-time backup for it.

必要时,请使用 Azure PowerShell 指南中的说明安装 Azure PowerShell,并运行 Connect-AzAccount -Environment AzureChinaCloud 创建与 Azure 的连接。If needed, install the Azure PowerShell using the instruction found in the Azure PowerShell guide, and then run Connect-AzAccount -Environment AzureChinaCloud to create a connection with Azure.

示例脚本Sample script

备注

本文进行了更新,以便使用新的 Azure PowerShell Az 模块。This article has been updated to use the new Azure PowerShell Az module. 你仍然可以使用 AzureRM 模块,至少在 2020 年 12 月之前,它将继续接收 bug 修补程序。You can still use the AzureRM module, which will continue to receive bug fixes until at least December 2020. 若要详细了解新的 Az 模块和 AzureRM 兼容性,请参阅新 Azure Powershell Az 模块简介To learn more about the new Az module and AzureRM compatibility, see Introducing the new Azure PowerShell Az module. 有关 Az 模块安装说明,请参阅安装 Azure PowerShellFor Az module installation instructions, see Install Azure PowerShell.

$webappname="mywebapp$(Get-Random -Minimum 100000 -Maximum 999999)"
$storagename="$($webappname)storage"
$container="appbackup"
$location="China North"
$backupname="backup1"

# Create a resource group.
New-AzResourceGroup -Name myResourceGroup -Location $location

# Create a storage account.
$storage = New-AzStorageAccount -ResourceGroupName myResourceGroup `
-Name $storagename -SkuName Standard_LRS -Location $location

# Create a storage container.
New-AzStorageContainer -Name $container -Context $storage.Context

# Generates an SAS token for the storage container, valid for one month.
# NOTE: You can use the same SAS token to make backups in Web Apps until -ExpiryTime
$sasUrl = New-AzStorageContainerSASToken -Name $container -Permission rwdl `
-Context $storage.Context -ExpiryTime (Get-Date).AddMonths(1) -FullUri

# Create an App Service plan in Standard tier. Standard tier allows one backup per day.
New-AzAppServicePlan -ResourceGroupName myResourceGroup -Name $webappname `
-Location $location -Tier Standard

# Create a web app.
New-AzWebApp -ResourceGroupName myResourceGroup -Name $webappname `
-Location $location -AppServicePlan $webappname

# Create a one-time backup
New-AzWebAppBackup -ResourceGroupName myResourceGroup -Name $webappname `
-StorageAccountUrl $sasUrl -BackupName $backupname

# List statuses of all backups that are complete or currently executing.
Get-AzWebAppBackupList -ResourceGroupName myResourceGroup -Name $webappname

清理部署Clean up deployment

运行脚本示例后,可以使用以下命令删除资源组、Web 应用以及所有相关资源。After the script sample has been run, the following command can be used to remove the resource group, web app, and all related resources.

Remove-AzResourceGroup -Name myResourceGroup -Force

脚本说明Script explanation

此脚本使用以下命令。This script uses the following commands. 表中的每条命令均链接到特定于命令的文档。Each command in the table links to command specific documentation.

CommandCommand 说明Notes
New-AzResourceGroupNew-AzResourceGroup 创建用于存储所有资源的资源组。Creates a resource group in which all resources are stored.
New-AzStorageAccountNew-AzStorageAccount 创建存储帐户。Creates a Storage account.
New-AzStorageContainerNew-AzStorageContainer 创建 Azure 存储容器。Creates an Azure storage container.
New-AzStorageContainerSASTokenNew-AzStorageContainerSASToken 生成 Azure 存储容器的 SAS 令牌。Generates an SAS token for an Azure storage container.
New-AzAppServicePlanNew-AzAppServicePlan 创建应用服务计划。Creates an App Service plan.
New-AzWebAppNew-AzWebApp 创建 Web 应用。Creates a web app.
New-AzWebAppBackupNew-AzWebAppBackup 创建 Web 应用的备份。Creates a backup for a web app.
Get-AzWebAppBackupListGet-AzWebAppBackupList 获取 Web 应用的备份列表。Gets a list of backups for a web app.

后续步骤Next steps

有关 Azure PowerShell 模块的详细信息,请参阅 Azure PowerShell 文档For more information on the Azure PowerShell module, see Azure PowerShell documentation.

可以在 Azure PowerShell 示例中找到 Azure 应用服务 Web 应用的其他 Azure Powershell 示例。Additional Azure Powershell samples for Azure App Service Web Apps can be found in the Azure PowerShell samples.