F5 Irule for maintenance page on application

Hello All,

Is it possible to use the page screenshot(jpg) on ifile and call it on irule 

when HTTP_REQUEST {
   # Retrieve the file contents, send it in an HTTP 200 response and clear the temporary variable
   set ifileContent [ifile get "test_application_name"]
   HTTP::respond 200 content $ifileContent
   unset ifileContent
}