Apply services use regex with Director

nguyenhuukhoinw · October 9, 2023, 4:13am

Hello, I am playing with Icinga Director and I want to use regex to filter which host will be applied. Will we can do with Director.
Example: I have compute01 >> compute18 and I just want to apply service for compute01 >> compute06.

Screenshot 2023-10-09 111047

Am I wrong?

Thank you.

Director version (System - About): 1.10.0
Icinga Web 2 version and modules (System - About): 2.11.1
Icinga 2 version (icinga2 --version): icingadb 1.1.0
Operating System and version: Ubuntu 22.04
Webserver, PHP versions: Apache 2.4 - PHP 8.1.2-1ubuntu2.14

moreamazingnick · October 9, 2023, 6:36am

icinga2 would support regex but the director currently doesnt:
https://icinga.com/docs/icinga-2/latest/doc/03-monitoring-basics/#apply-rules-expressions-examples

the closest you get is using the "*" in the query like "webserver*", this will be translated to match("webserver*", host.name)

here is the correspondig code which lacks a regex implementation:

github.com

Icinga/icingaweb2-module-director/blob/76509bb7c81b43613c3f00a7ee1bd3829e19c8aa/library/Director/IcingaConfig/AssignRenderer.php#L184


      
              if ($rawExpression === false) {
                  return sprintf(
                      '! %s',
                      $column
                  );
              }
              if (strpos($expression, '*') === false) {
                  return $this->renderEquals($column, $expression);
              } else {
                  return sprintf(
                      'match(%s, %s)',
                      $expression,
                      $column
                  );
              }
          } elseif ($filter instanceof FilterMatchNot) {
              if (strpos($expression, '*') === false) {
                  return $this->renderNotEquals($column, $expression);
              } else {
                  return sprintf(
                      '! match(%s, %s)',

nguyenhuukhoinw · October 9, 2023, 7:24am

Thank you much.
Will we have plan for this feature in future. It will be nice.