Exit plugin with CRITICAL if no response

[prupert]

Currently, the plugin will exit with UNKNOWN if the web server does not respond correctly to the request for the Apache status page. In our use case we would like to have the CRITICAL exit code, as this indicates that Apache is unresponsive.

Would it be possible to make the exit code of the "" condition configurable? E.g.

Add the option

$options->arg(
  spec     => 'critical_on_failure|C',
  help     => 'exit with critical status when fetching status page failed',
  required => 0,
);

Add the condition at the end of the script

(...)
} else {

 if (defined($options->critical_on_failure)) {
    $status = 2;
  } else {
    $status = 3;
  }

  $plugin->plugin_exit( $status, $response->headers->title );

}

[lbetz]

For what kind of http code do you like to get a critical? Or only if the plugin timed out?

[prupert]

Thank you for that question, that could lead to a better implementation.

A HTTP 5xx or time-out indicates a real problem with the Apache web server. In that case I would think a "critical" status is suitable.

For all other HTTP error codes (such as HTTP 4xx) or a correct HTTP status code (such as HTTP 200, but without actually responding with the mod_status page) it is most likely just a monitoring configuration issue, and thus "unknown" status is suitable.

[lbetz]

push to master, tagged version 1.3.0