Book Image

Chef Essentials

By : John Ewart
Book Image

Chef Essentials

By: John Ewart

Overview of this book

<p>Chef is a configuration management tool that turns IT infrastructure into code. Chef provides tools to manage systems at scale. With this book, you will learn how to use the same tools that companies such as Facebook, Riot Games, and Ancestry.com use to manage and scale their infrastructure.</p> <p>This book takes you on a comprehensive tour of Chef's functionality, ranging from its core features to advanced development. You will be brought up to speed with what's new in Chef and how to set up your own Chef infrastructure for individuals, or small or large teams. Once you have the core components, you will get to grips with bootstrapping hosts to then develop and apply cookbooks. If you want to fully leverage Chef, this book will show you advanced recipes to help you handle new types of data providers and resources. By the end of this book, you will be confident in how to manage your infrastructure, scale using the cloud, and extend the built-in functionality of Chef itself.</p>
Table of Contents (15 chapters)
Chef Essentials
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Metadata


Each cookbook contains a metadata.rb file in the root directory of the cookbook that contains information about the cookbook itself, such as who maintains it, the license, version, contained recipes, supported platforms, and the cookbook's dependencies. The contents of this script are used to generate a JSON file that describes the cookbook, which is used by the Chef server for dependency resolution, searching and importing into run lists.

This is a required file for a cookbook, and here is an example metadata.rb file from the PostgreSQL database server, which is slightly modified to fit the following:

name              "postgresql"
maintainer        "Opscode, Inc."
maintainer_email  "[email protected]"
license           "Apache 2.0"
description       "Installs and configures PostgreSQL"
long_description  IO.read(File.join(
                    File.dirname(__FILE__), 'README.md'
                  ))
version           "3.3.4"
recipe            "postgresql", "Includes postgresql...