How delete a file in a file share in a storage account

Hi Juan Carlos Villalobos Moreno,

To automatically delete a file in an Azure file share within a storage account, you can use Azure Automation or Azure Functions. Using Azure Automation

Create an Automation Account:

• Go to the Azure portal.
• Navigate to "Create a resource" and search for "Automation".
• Create an Automation Account.

Create a Runbook:

• In your Automation Account, go to "Runbooks" and click "Create a runbook".
• Choose "PowerShell" as the runbook type and give it a name.

Add PowerShell Script:

• Use the following script to delete files older than a specific number of days:

param (
    [string]$storageAccountName,
    [string]$storageAccountKey,
    [string]$fileShareName,
    [int]$daysOld
)

$context = New-AzStorageContext -StorageAccountName $storageAccountName -StorageAccountKey $storageAccountKey
$files = Get-AzStorageFile -ShareName $fileShareName -Context $context

foreach ($file in $files) {
    if ($file.LastModified.DateTime -lt (Get-Date).AddDays(-$daysOld)) {
        Remove-AzStorageFile -ShareName $fileShareName -Path $file.Name -Context $context
    }
}

Publish and Schedule the Runbook:

• Publish the runbook.
• Go to "Schedules" and create a new schedule to run the runbook at your desired frequency.

Using Azure Functions

Create an Azure Function:

• Go to the Azure portal.
• Navigate to "Create a resource" and search for "Function App".
• Create a Function App.

Create a Timer Trigger Function:

• In your Function App, create a new function with a Timer trigger.
• Use the following code to delete files:

using System;
using Microsoft.Azure.WebJobs;
using Microsoft.Extensions.Logging;
using Microsoft.WindowsAzure.Storage;
using Microsoft.WindowsAzure.Storage.File;

public static void Run(TimerInfo myTimer, ILogger log)
{
    string storageAccountName = Environment.GetEnvironmentVariable("StorageAccountName");
    string storageAccountKey = Environment.GetEnvironmentVariable("StorageAccountKey");
    string fileShareName = Environment.GetEnvironmentVariable("FileShareName");
    int daysOld = int.Parse(Environment.GetEnvironmentVariable("DaysOld"));

    CloudStorageAccount storageAccount = new CloudStorageAccount(new StorageCredentials(storageAccountName, storageAccountKey), true);
    CloudFileClient fileClient = storageAccount.CreateCloudFileClient();
    CloudFileShare fileShare = fileClient.GetShareReference(fileShareName);
    CloudFileDirectory rootDir = fileShare.GetRootDirectoryReference();

    foreach (IListFileItem item in rootDir.ListFilesAndDirectories())
    {
        if (item is CloudFile file && file.Properties.LastModified < DateTimeOffset.UtcNow.AddDays(-daysOld))
        {
            file.DeleteIfExists();
        }
    }
}

Add the necessary application settings for StorageAccountName, StorageAccountKey, FileShareName, and DaysOld.Deploy the function and configure the timer trigger to run at your desired frequency.

If you have any other questions or are still running into more issues, let me know in the "comments" and I would be glad to assist you.