Jim Kehoe File Expiration

JimKehoeFileExpiration.ps1

# -----------------------------------------------------------------------------
# Initialise
# -----------------------------------------------------------------------------
#region Init 

$resourceGroupName = "rg-FileExpiration"
$location = "eastus"
$StorageAccountName = "pwcfileexpiration"
$shareName = "share"
$numberOfDays = -1
$date = (Get-Date).AddDays(-30)
#endregion Init

# Ensures you do not inherit an AzContext in your runbook
Disable-AzContextAutosave -Scope Process

# Connect to Azure with system-assigned managed identity
$AzureContext = (Connect-AzAccount -Identity).context

# Set and store subscription context
$AzureContext = Set-AzContext -SubscriptionName $AzureContext.Subscription -DefaultProfile $AzureContext

#! Source Storage Account (hot file share)
# Get Source Storage Account Key
$accountKey = (Get-AzStorageAccountKey -ResourceGroupName $resourceGroupName -Name $StorageAccountName).Value[0]
$ctx = New-AzStorageContext -StorageAccountName $StorageAccountName -StorageAccountKey $accountKey
$DirIndex = 0  
$dirsToList = New-Object System.Collections.Generic.List[System.Object]  
  
# Get share root Dir  
$shareroot = Get-AzStorageFile -ShareName $shareName -Path . -context $ctx   
$dirsToList += $shareroot   
  
# List files recursively and remove file older than 14 days   
While ($dirsToList.Count -gt $DirIndex)  
{  
    $dir = $dirsToList[$DirIndex]  
    $DirIndex ++  
    $fileListItems = $dir | Get-AzStorageFile  
    $dirsListOut = $fileListItems | where {$_.GetType().Name -eq "AzureStorageFileDirectory"}  
    $dirsToList += $dirsListOut  
    $files = $fileListItems | where {$_.GetType().Name -eq "AzureStorageFile"}  
  
    foreach($file in $files)  
    {  
        # Fetch Attributes of each file and output  
        $task = $file.CloudFile.FetchAttributesAsync()  
        $task.Wait()  
  
        # remove file if it's older than x number of  days.
        Write-Output "Checking file" $file.Name "with last modified date:" $file.CloudFile.Properties.LastModified 
        if ($file.CloudFile.Properties.LastModified -lt (Get-Date).AddDays($numberOfDays)){ 

            # Remove file  
            Write-Output $file.CloudFile.SnapshotQualifiedUri.AbsoluteUri  "is older than 1 days. Removing it."
            $file | Remove-AzStorageFile  


            # Write the deleted file name to a CSV file
            #$deletedFileName = $file.Name
            #$csvFilePath = "C:\ARMMichael\deleted_files.csv"
            #$deletedFileName | Export-Csv -Path $csvFilePath -Append -NoTypeInformation\

        }
        else {

            # Keep the file  
            Write-Output $file.CloudFile.SnapshotQualifiedUri.AbsoluteUri "is NOT older than 1 days. KEEPING it."
        }
    }
}