Book Image

Cacti 0.8 Beginner's Guide

By : Thomas Urban
Book Image

Cacti 0.8 Beginner's Guide

By: Thomas Urban

Overview of this book

Cacti is a performance measurement tool that provides easy methods and functions for gathering and graphing system data. You can use Cacti to develop a robust event management system that can alert on just about anything you would like it to. But to do that, you need to gain a solid understanding of the basics of Cacti, its plugin architecture, and automation concepts. Cacti 0.8 Beginner's Guide will introduce you to the wide variety of features of Cacti and will guide you on how to use them for maximum effectiveness. Advanced topics like the plugin architecture and Cacti automation using the command-line interface will help you build a professional performance measurement system.Designed as a beginner's guide, the book starts off with the basics of installing and using Cacti, and also covers the advanced topics that will show you how to customize and extend the core Cacti functionalities. The book offers essential tutorials for creating advanced graphs and using plugins to create enterprise-class reports to show your customers and colleagues. From data templates to input methods and plugin installation to creating your own customized plugins, this book provides you with a rich selection of step-by-step instructions to reach your goals. It covers all you need to know to implement professional performance measurement techniques with Cacti and ways to fully customize Cacti to fit your needs. By the end of the book, you will be able to implement and extend Cacti to monitor, display, and report the performance of your network exactly the way you want.
Table of Contents (23 chapters)
Cacti 0.8Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Pop Quiz Answers
Index

Creating a new plugin


Now it is time for you to create your very first plugin. You will go through the different steps from the concept of the plugin to its installation within Cacti.

The plugin will be quite simple but will show you most of the common features and hooks of the Plugin Architecture.

File structure

All plugins should at least consist of an index.php and setup.php file. These two files are required for any plugin to work properly, but of course, you should consider adding a readme file, as well as further documentation to your plugin. You can find a more complete file structure for plugins on the Cacti website here:

http://docs.cacti.net/plugins:development.reference_plugin.

Concept and design

Let's assume that you want to display additional data such as a table at the end of each host graph. The data to be displayed will have the following requirements:

  • Display the hostname and IP address

  • Show location information (country, site, room)

  • Display a contact address (e-mail)

  • Have a...