PowerShell Az Blob Container Copy

CopyAzStorageContainer.ps1

#Requires -Modules Az
param(
    [Parameter(Mandatory)]
    [String]$StorageAccountName,

    [Parameter(Mandatory)]
    [String]$ContainerName,

    [Parameter(Mandatory = $false)]
    [String]$BlobFilter,

    [Parameter(Mandatory,ParameterSetName='ByAccountName')]
    [String]$DestStorageAccountName,

    [Parameter(Mandatory,ParameterSetName='DestinationByLocal')]
    [Switch]$DestLocal
)

BEGIN {
    $tmpFolder = Join-Path -Path $env:TEMP -ChildPath $(New-Guid)
    Write-Output "$(Get-Date): Creating temp directory: '$tmpFolder'"
    New-Item -Path $tmpFolder -ItemType Directory | Out-Null

    $srcContext = New-AzStorageContext -StorageAccountName $StorageAccountName -UseConnectedAccount

    switch($PSCmdlet.ParameterSetName){
        'ByAccountName'{
            $destContext = New-AzStorageContext -StorageAccountName $DestStorageAccountName -UseConnectedAccount
        }
        'DestinationByLocal'{
            $destContext = New-AzStorageContext -Local
        }
    }
}

PROCESS {
    try {
        $srcParams = @{
            Context   = $srcContext
            Container = $ContainerName
        }

        if (-not([String]::IsNullOrEmpty($BlobFilter))){
            $srcParams.Add('Blob', $BlobFilter)
        }

        Get-AzStorageBlob @srcParams |
            foreach { Get-AzStorageBlobContent -Context $srcContext -Container $ContainerName -Destination $tmpFolder -Blob $_.Name }

        if ($null -eq (Get-AzStorageContainer -Context $destContext -Name $ContainerName -ea 0)){
            Write-Output "$(Get-Date): Creating destination container: '$ContainerName'"
            New-AzStorageContainer -Context $destContext -Container $ContainerName
        }

        Get-ChildItem -Path $tmpFolder |
            foreach { Set-AzStorageBlobContent -Container $ContainerName -File $_ -Context $destContext -Blob $($_.Name) }
    }
    finally {
        Write-Output "$(Get-Date): Cleaning up temp directory: '$tmpFolder'"
        Remove-Item -Path $tmpFolder -Recurse
    }
}