Monitoring

Note: Any specific Tiki-Nagios documentation should be moved to https://doc.tiki.org/Nagios

Tiki Monitoring with Nagios

Assumptions

This text will assume you have enough knowledge and domain of Nagios and Linux, your Nagios is already deployed and it is in an external server (different where you have your Tiki deployment)

Nagios Configuration

First you need to copy the check_tiki scripts. You can download it here. This script is written in PHP. Put it on a path you will remember, for example /usr/local/bin. You will need to call it manually to see the options. This document will use some defaults ones, but you will need to put your own values.

Look for your nagios.cfg file, open it and check what directory is pointing the variable cfg_dir. In this case we are going to use /etc/nagios/conf.d/

Create a file at /etc/nagios/conf.d/check_tiki.cfg with the following content:

define command{
        command_name    check_tiki_bcc
        command_line    /usr/local/bin/check_tiki.php  -u $ARG1$ -c bcc --bccwarn $ARG2$ --bcccrit $ARG3$
        }

define command{
        command_name    check_tiki_searchindex
        command_line    /usr/local/bin/check_tiki.php  -u $ARG1$ -c searchindex --sirwarn $ARG2$ --sircrit $ARG3$
        }

define command{
        command_name    check_tiki_db
        command_line    /usr/local/bin/check_tiki.php  -u $ARG1$ -c db
        }

Edit your server definition. Put the following in the proper directory. In our case, it is in the /etc/nagios/objects/servers/ directory. This is a template, your server definition may be much more complex than this.

define host{
        use                     linux-server
        host_name               trunk.notre.website
        alias                   trunk
        }

define service{
        use                             local-service
        host_name                       trunk.notre.website
        service_description             HTTP
        check_command                   check_http!-H trunk.notre.website
        notifications_enabled           1
        }

define service{
        use                             local-service
        host_name                       trunk.notre.website
        service_description             TIKI Op Code Cache
        check_command                   check_tiki_bcc!http://trunk.notre.website/tiki-monitor.php!80!95
        notifications_enabled           1
        }

define service{
        use                             local-service
        host_name                       trunk.notre.website
        service_description             TIKI Index
        check_command                   check_tiki_searchindex!http://trunk.notre.website/tiki-monitor.php!80000!95000
        notifications_enabled           1
        }

define service{
        use                             local-service
        host_name                       trunk.notre.website
        service_description             TIKI Op Code Cache
        check_command                   check_tiki_db!http://trunk.notre.website/tiki-monitor.php
        notifications_enabled           1
        }

As optional setup you can put your service dependencies. In this specific case, check_tiki_* depends on HTTP availability.

define servicedependency{
        host_name                       trunk.notre.website
        service_description             HTTP
        dependent_host_name             trunk.notre.website
        dependent_service_description   TIKI Op Code Cache
        execution_failure_criteria      n
        notification_failure_criteria   w,u,c
}

define servicedependency{
        host_name                       trunk.notre.website
        service_description             HTTP
        dependent_host_name             trunk.notre.website
        dependent_service_description   TIKI Index
        execution_failure_criteria      n
        notification_failure_criteria   w,u,c
}

define servicedependency{
        host_name                       trunk.notre.website
        service_description             HTTP
        dependent_host_name             trunk.notre.website
        dependent_service_description   TIKI DB
        execution_failure_criteria      n
        notification_failure_criteria   w,u,c
}

You can check your configuration by executing:

nagios -v /etc/nagios/nagios.cfg

If there is an error, you will be notified. After that, you can restart nagios and new monitoring will start.