azure - 如何使用 PowerShell 7 获取 Azure 中的任何 Blob 属性

Question

我使用以下代码来访问和检索 Azure 中的 blob 属性。我想让这个函数变得通用，这样我就可以使用任何“属性”名称来调用它，而不是像下面硬编码的那样仅检索“IsServerEncrypted”属性:

function GetBlobProperty   {
    Param(   
        [parameter(Mandatory = $true)] [String] $blobProperty, # <<<<<=I want to retrieve any property
        [parameter(Mandatory = $true)] [String] $storageAccountName,
        [parameter(Mandatory = $false)] [String] $storageAccountKey,
        [parameter(Mandatory = $false)] [String] $containerName,
        [parameter(Mandatory = $false)] [String] $blobName
    )    
    $ctx = GetStorageContext $storageAccountName $storageAccountKey
    $Blobs = Get-AzStorageBlob -Container $containerName -Context $ctx
    $retValue = ""

    ForEach ($Blob in $Blobs){
        #Write-Host $Blob.Name  
        if($Blob.Name.IndexOf($blobName) -ge 0)
        {
            Write-Host $Blob.Name
            $retValue = $Blob.ICloudBlob.Properties.IsServerEncrypted #I want to pass $blobProperty here
            break;
        }


    }
    return $retValue
}

谢谢!

Answer 1

您可能只需执行 $Blob.ICloudBlob.Properties.$blobProperty 并检查该属性是否存在(不为 null)。

function Get-BlobProperty {
    Param(   
        [parameter(Mandatory = $true)] [String] $blobProperty,
        [parameter(Mandatory = $true)] [String] $storageAccountName,
        [parameter(Mandatory = $false)] [String] $storageAccountKey,
        [parameter(Mandatory = $false)] [String] $containerName,
        [parameter(Mandatory = $false)] [String] $blobName
    )    
    $ctx = New-AzStorageContext -StorageAccountName $storageAccountName -StorageAccountKey $storageAccountKey
    $Blobs = Get-AzStorageBlob -Container $containerName -Context $ctx
    $retValue = $null

    ForEach ($Blob in $Blobs){
        #Write-Host $Blob.Name  
        if($Blob.Name.IndexOf($blobName) -ge 0)
        {
            Write-Host $Blob.Name
            if ($null -ne $Blob.ICloudBlob.Properties.$blobProperty) {
                $retValue = $Blob.ICloudBlob.Properties.$blobProperty
                break;
            }
        }


    }
    return $retValue
}

虽然我更喜欢使用 Get-Member检查该属性是否存在:

function Get-BlobProperty   {
    Param(   
        [parameter(Mandatory = $true)] [String] $blobProperty,
        [parameter(Mandatory = $true)] [String] $storageAccountName,
        [parameter(Mandatory = $false)] [String] $storageAccountKey,
        [parameter(Mandatory = $false)] [String] $containerName,
        [parameter(Mandatory = $false)] [String] $blobName
    )    
    $ctx = New-AzStorageContext -StorageAccountName $storageAccountName -StorageAccountKey $storageAccountKey
    $Blobs = Get-AzStorageBlob -Container $containerName -Context $ctx
    $retValue = $null

    ForEach ($Blob in $Blobs){
        #Write-Host $Blob.Name  
        if($Blob.Name.IndexOf($blobName) -ge 0)
        {
            Write-Host $Blob.Name

            if (Get-Member -InputObject $Blob.ICloudBlob.Properties -Name $blobProperty -MemberType Property) {
                $retValue = $Blob.ICloudBlob.Properties.$blobProperty
                break;
            }
        }
    }
    return $retValue
}