删除 Azure Blob 存储中的“文件夹”

Ben 我建议使用这个 Powershell 脚本，允许一次删除 10,000 个：

这个 PowerShell 脚本旨在在 Azure Automatiom 中运行，通过一次处理 10,000 个 blob 的块来删除容器中的大量 blob。当 blob 的数量超过几千个时，一次删除每个 blob 的常用方法可能会在没有完成任务的情况下暂停。这可用于删除所有 blob（当提供的参数留存天数为 0 时），或在最后 rententionDays 天数内未修改的某些 blob。

脚本可以在这里下载：https : //gallery.technet.microsoft.com/Delete-large-number-of-97e04976

    <#
.Synopsis
  Deletes large number of blobs in a container of Storage account, which are older than x days

.DESCRIPTION
  This Runbook deletes huge number of blobs in a container, by processing them in chunks of 10,000 blobs at a time. When the number of blobs grow beyond a couple of thousands, the usual method of deleting each blob at a time may just get suspended without completing the task. 

.PARAMETER CredentialAssetName
    The Credential asset which contains the credential for connecting to subscription

.PARAMETER Subscription
    Name of the subscription attached to the credential in CredentialAssetName

.PARAMETER container
    Container name from which the blobs are to be deleted

.PARAMETER AzStorageName
    The Storage Name to which the container belong to

.PARAMETER retentionDays
    Retention days. Blobs older than these many days will be deleted. To delete all, use 0

.NOTES
   AUTHOR: Anurag Singh, MSFT
   LASTEDIT: March 30, 2016
#>

function delete-blobs
{   
    param (
        [Parameter(Mandatory=$true)] 
        [String]  $CredentialAssetName,

        [Parameter(Mandatory=$true)]
        [String] $Subscription,

        [Parameter(Mandatory=$true)] 
        [String] $container,

        [Parameter(Mandatory=$true)] 
        [String] $AzStorageName,

        [Parameter(Mandatory=$true)] 
        [Int] $retentionDays
    )

$Cred = Get-AutomationPSCredential -Name $CredentialAssetName
$Account = Add-AzureAccount -Credential $Cred

if(!$Account) 
{
    write-output "Connection to Azure Subscription using the Credential asset failed..."
    Break;
}

set-AzureSubscription -SubscriptionName $Subscription

$AzStorageKey = (Get-AzureStorageKey -StorageAccountName $AzStorageName).Primary
$context = New-AzureStorageContext -StorageAccountName $AzStorageName -StorageAccountKey $AzStorageKey


$blobsremoved = 0
$MaxReturn = 10000
$Total = 0
$Token = $Null
$TotalDel = 0
$dateLimit = (get-date).AddDays(-$retentionDays) 

try
{
    do
    {
        Write-Output "Retrieving blobs"
        $blobs = Get-AzureStorageBlob -Container $container -context $context -MaxCount $MaxReturn  -ContinuationToken $Token 
        $blobstodelete =  $blobs | where LastModified -LE $dateLimit
        $Total += $Blobs.Count
        Write-Output "$Total  total Retrieved blobs"

        $Token = $Blobs[$blobs.Count -1].ContinuationToken;

        if($Blobs.Length -le 0) 
        { 
            break;
        }

        if($blobstodelete.Length -le 0) 
        { 
            continue;
        }

        $TotalDel += $blobstodelete.Count

        $blobstodelete  | Remove-AzureStorageBlob -Force 

        Write-Output "$TotalDel  blobs deleted"
    }
    While ($Token -ne $Null)
}

catch 
{
    write-output $_
}

}