azure - 删除 Azure Blob 存储中的 "folder"

Question

我想从我的 Azure Blob 存储帐户的容器中删除一个文件夹。该文件包含 3 000 000 多个文件，使用 Azure 存储资源管理器这是一个相当长的过程(1 000 个文件/5 分钟)，因此我想知道是否可以立即删除一个文件夹。

我知道 Azure Blob 存储中没有“文件夹”，它更像是访问 Blob 的虚拟路径，但对于大量 Blob 的批量删除，这是有问题的。

Answer 1

Ben 我建议使用这个 Powershell 脚本，一次可以删除 10,000 个:

This PowerShell script, designed to run in Azure Automatiom, 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 grows beyond a couple of thousands, the usual method of deleting each blob at a time may just get suspended without completing the task. This could be used to to delete all blobs (when parameter retentionDays is supplied as 0), or certain blobs which has not been modified for the last rententionDays number of days.

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 $_
}

}