Customizing Chef_ Getting the Most out of Your Infrastructure Automation [Cowie 2014-09-19].pdf

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Chef

GETTING THE MOST OUT OF YOUR

INFRASTRUCTURE AUTOMATION

Customizing

Jon Cowie

www.it-ebooks.info

Customizing Chef

Take advantage of Chef’s highly customizable design to tackle specific

automation issues that you can’t solve by simply using Chef ’s tools,

resources, and services out of the box. With this practical guide, you’ll

examine the internal structure of this configuration management

technology and learn where, how, and why to add custom code.

Author Jon Cowie not only provides code snippets and practical advice

for customizing Chef, but also helps you determine case by case whether

it’s in your best interests to customize at all. If you have intermediate-to-

advanced Chef experience, this book is indispensable.

■

Whether you are new

“

to Chef or have been

using it for years, this

book has something

for you! Approachable,

practical advice, working

code, and best practices

can all be found in this

delightful book, which

should be considered

required reading and

a ready reference for

anyone who is serious

about automating

infrastructure with Chef.

Explore Chef’s typical setups and why you’d want to

customize them

Learn the Ruby concepts needed to write customizations

Customize the Chef run process and explore Chef’s internal

classes

Gain more insight into your Chef runs through handlers and

Chef’s event stream

Level up your Chef recipes by writing your own resources

and providers

Create and extend plugins for Knife—Chef’s command-line

tool

Interact with the Chef API to write scripts and reports

Learn how to contribute customizations to the Chef

community

■

Community Director at Chef and Co-host

of the Food Fight Show podcast

—Nathen Harvey

”

■

Jon Cowie

is a senior operations engineer at Etsy, where he solves interesting

problems through his love of both coding and operations. He’s created and open-

sourced several projects, including the Chef tools knife-spork and knife-preflight.

SYSTEM ADMINISTR ATION

Twitter: @oreillymedia

facebook.com/oreilly

US $39.99

CAN $41.99

ISBN: 978-1-491-94935-1

www.it-ebooks.info

Customizing Chef

Jon Cowie

www.it-ebooks.info

Customizing Chef

by Jon Cowie

Printed in the United States of America.

Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.

O’Reilly books may be purchased for educational, business, or sales promotional use. Online editions are

also available for most titles (http://safaribooksonline.com). For more information, contact our corporate/

institutional sales department: 800-998-9938 or

corporate@oreilly.com.

Editors:

Courtney Nash and Brian Anderson

Production Editor:

Nicole Shelby

Copyeditor:

Rachel Head

Proofreader:

Gillian McGarvey

September 2014:

First Edition

Indexer:

Wendy Catalano

Cover Designer:

Ellie Volckhausen

Interior Designer:

David Futato

Illustrator:

Rebecca Demarest

Revision History for the First Edition:

2014-08-26:

First release

See

http://oreilly.com/catalog/errata.csp?isbn=9781491949351

for release details.

Nutshell Handbook, the Nutshell Handbook logo, and the O’Reilly logo are registered trademarks of O’Reilly

Media, Inc.

Customizing Chef,

the picture of a ruffed grouse, and related trade dress are trademarks of

O’Reilly Media, Inc.

Many of the designations used by manufacturers and sellers to distinguish their products are claimed as

trademarks. Where those designations appear in this book, and O’Reilly Media, Inc. was aware of a trademark

claim, the designations have been printed in caps or initial caps.

While every precaution has been taken in the preparation of this book, the publisher and author assume no

responsibility for errors or omissions, or for damages resulting from the use of the information contained

herein.

ISBN: 978-1-491-94935-1

[LSI]

www.it-ebooks.info

This book is dedicated to my uncle, David Shrimpton, without whose encouragement and

guidance I would likely never have entered this profession. He was a great friend and

mentor to all of his students at the University of Kent as well as to myself, and is greatly

missed by all who knew and loved him.

www.it-ebooks.info

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