configure life cycle management on azure file share

To configure lifecycle management for Azure File Share using Azure Functions or Azure Logic Apps:

### Using Azure Functions

1. **Create an Azure Function**:
   - Go to the Azure portal and create a new Function App.

2. **Write Function Code**:
   - Example Python code to delete files older than a certain number of days:

   ```python
   import datetime
   import os
   from azure.storage.fileshare import ShareServiceClient

   connection_string = os.getenv('AZURE_STORAGE_CONNECTION_STRING')
   share_name = os.getenv('AZURE_FILE_SHARE_NAME')
   days_to_keep = int(os.getenv('DAYS_TO_KEEP'))

   def main(mytimer: func.TimerRequest) -> None:
       service_client = ShareServiceClient.from_connection_string(connection_string)
       share_client = service_client.get_share_client(share_name)
       directory_client = share_client.get_directory_client("")

       delete_old_files(directory_client, days_to_keep)

   def delete_old_files(directory_client, days_to_keep):
       threshold_date = datetime.datetime.utcnow() - datetime.timedelta(days=days_to_keep)
       for item in directory_client.list_directories_and_files():
           if not item['is_directory']:
               file_client = directory_client.get_file_client(item['name'])
               properties = file_client.get_file_properties()
               if properties['last_modified'] < threshold_date:
                   file_client.delete_file()
   ```

3. **Set Up Timer Trigger**:
   - Schedule the function to run periodically (e.g., daily).

### Using Azure Logic Apps

1. **Create a Logic App**:
   - Go to the Azure portal and create a new Logic App.

2. **Design Workflow**:
   - **Recurrence Trigger**: Run daily.
   - **List Files in Folder**: Use Azure File Storage connector.
   - **Filter Files**: Use a condition to filter files older than a certain number of days.
     ```json
     {
       "and": [
         {
           "less": [
             "@item()['lastModified']",
             "@addDays(utcNow(), -30)"
           ]
         }
       ]
     }
     ```
   - **Delete Files**: Loop through filtered files and delete them using the "Delete file" action.

These methods allow you to manage the lifecycle of files in Azure File Share effectively.