public function getSshKeyFile()
{
// what are we doing?
$log = usingLog()->startAction("get key file to use with SSH to host '{$this->args[0]}'");
// make sure we have valid host details
$hostDetails = $this->getHostDetails();
// get the information
$return = $hostDetails->sshKeyFile;
// all done
$log->endAction("key file is '{$return}'");
return $return;
}