function Get-Blob {

param (

[Microsoft.WindowsAzure.Commands.ServiceManagement.Model.IPersistentVM]$VM

)

$ServiceName=$vm.ServiceName

$storageAccount = (Get-AzureSubscription -current).CurrentStorageAccountName

if($storageAccount -eq $null){

throw New-Object -TypeName InvalidOperationException -ArgumentList "The CurrentStorageAccountName has not been set. Use Set-AzureSubscription to set your current storage account"

}

Write-BoxstarterMessage "Getting azure storage key..." -Verbose

$key = Invoke-RetriableScript { (Get-AzureStorageKey -StorageAccountName $args[0]).Primary } $storageAccount

$creds = New-Object Microsoft.WindowsAzure.StorageCredentialsAccountAndKey($storageAccount,$key)

Write-BoxstarterMessage "Getting OS disk..." -Verbose

$vmOSDisk=Invoke-RetriableScript { Get-AzureOSDisk -vm $args[0] } $VM

$blobURI = $vmOSDisk.MediaLink

$blobPath = $BlobUri.LocalPath.Substring(1)

$blobClient = New-Object Microsoft.WindowsAzure.StorageClient.CloudBlobClient("http://$($blobUri.Host)", $creds)

return $blobClient.GetBlobReference($blobPath)

}