Description: -Copy\Move and Rename Blob from one container to another. The script will check the file names if they are under certain naming convention for example in this case prefix the file with some character if its less than N characters.

Example – Prefix Blobs with characters to ensure file name of 15 Characters.

Script can perform both copy and move (Copy and Delete) operations across containers.

##*******************************************************************************##

# Description:-Copy\Move and Rename Blob from one container to another ##

## Example - Prefix Blob with characters to ensure file name of 15 Characters ##
## Author - Rakesh Sharma - sharma_rakesh@msn.com

##*******************************************************************************##

#**Connect to Azure**#
##Login-AzAccount
###Logout-AzAccount
###Connect-AzureRmAccount
###Install-Module -Name Az -Scope CurrentUser -Repository PSGallery -Force
##Import-Module -Name AzureRM
##Import-Module -Name Azure.Storage



## Function to Copy\Move Blob to another containet with new name ##
function Rename-AzureStorageBlob 
{
    [CmdletBinding()]
    Param
    (
        [Parameter(Mandatory = $true, ValueFromPipeline = $true, Position = 0)]
        [Microsoft.WindowsAzure.Commands.Common.Storage.ResourceModel.AzureStorageBlob]$Blob,[Parameter(Mandatory = $true, Position = 1)]
        [string]$NewName,
        [string]$DestContainer

    )

Process 
        {
            

            $blobCopyAction = Start-AzureStorageBlobCopy  
            -ICloudBlob $Blob.ICloudBlob 
            -DestBlob $NewName 
            -Context $Blob.Context 
            -DestContainer $DestContainer -Force

            $status = $blobCopyAction | Get-AzureStorageBlobCopyState

            while ($status.Status -ne 'Success') 
                {
                    $status = $blobCopyAction | Get-AzureStorageBlobCopyState
                    Start-Sleep -Milliseconds 50
        
        
                }

        ## **Comment below line to make this script Copy and Delete** ##
       
        $Blob | Remove-AzureStorageBlob -Force ## This will overwite the content remove -Force for prompt\warning ##
    }
}


##Pass credential to read the blobs from the container##

## Pass Storage Account Name below ##
$StorageAccountName = "YourStorageAccountName"
# Pass Storage Key - Copy from the Azure Portal #
$StorageAccountKey = "xPiz+WPCyfe <**Your Storage Key**> 1tPEySwr6F866Q=="

#Container name - change if different
$containerName = "imageraw" ##<Source Container Name>##
$destcontainer="imagefinal" ##<Destination Container Name>##
$connectionStringvar = ''+'DefaultEndpointsProtocol=https;AccountName='+ $StorageAccountName + ';' + 'AccountKey='+ $StorageAccountKey +''
write-host $connectionStringvar

## Acquiring the blob context ##

$Ctx = New-AzureStorageContext $StorageAccountName -StorageAccountKey $StorageAccountKey

$ListBlobs = Get-AzureStorageBlob -context $Ctx -Container $containerName
 
 ## Count the total Nunber of Blobs in the Container ##
  Write-Host ("Blob Count: " + $ListBlobs.Count + "`n")
 
  foreach($bl in $ListBlobs)
 
   {

        ##Write-Host "Blob: " 
        #Write-Host ("File Full Path: " + $bl.Name)
        #Write-Host ("Folder Path: " + $bl.Name.Substring( 0, $bl.Name.LastIndexOf("/")+1) )
        #Extract file name from full path
      
        write-Host ("File Name: " + $bl.Name.Substring( $bl.Name.LastIndexOf("/") + 1, $bl.Name.Length - $bl.Name.LastIndexOf("/")-1 ) )
      
            if ($bl.name.Length -lt 15)

                {
                    #Write-Host  Write-Host $bl.Name , "-" $bl.name.Length  " File is Short"
                    $shortchar = 15 - $bl.name.Length  
                    $nameonly=$bl.name
                    Write-Host "Filename is short by character count of "$shortchar 
                    Write-Host "Adjusting File Name Length"
                    
                    $replicate="x"*$shortchar
                    #Write-Host $replicate
                    $newname=  $replicate+$nameonly
                    Write-Host "New File Name on Destination Container" $newname
                    Write-Host "##############################################"
                                         
                    Write-Host $connectionStringvar
                    $storageContext = New-AzureStorageContext -ConnectionString $connectionStringvar
                    
                    ##Calling Funciton here and retrieve items one by one
                    
                    
                    Get-AzureStorageBlob -Container $containerName -Context $storageContext -Blob $nameonly |
                    Write-Host "Copying blob to final container with defined naming convention"
                    Rename-AzureStorageBlob -NewName $newname -DestContainer $destcontainer
                }
                
                else
                
                {
                    write-host  Write-Host $bl.Name , "-" $bl.name.Length  " File naming convention is in compliance"   
                }
   }