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Hall - Mastering SaltStack : take charge of SaltStack to automate and configure enterprise-grade environments

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Hall Mastering SaltStack : take charge of SaltStack to automate and configure enterprise-grade environments
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Take charge of SaltStack to automate and configure enterprise-grade environments


About This Book
  • Automate tasks effectively, so that your infrastructure can run itself
  • Take advantage of cloud-based services that can expand the capabilities of your own data centers
  • Tackle real-world problems that appear in everyday situations

In Detail

SaltStack is known as a popular configuration management system, but that barely scratches the surface. It is, in fact, a powerful automation suite, which is designed not only to help you manage your servers, but to help them manage themselves. SaltStack is used worldwide by organizations ranging from just a few servers, to tens of thousands of nodes across data centers in multiple continents. This award-winning software is fast becoming the standard for systems management in the cloud world.

This book will take you through the advanced features of SaltStack, bringing forward capabilities that will help you excel in the management of your servers.

You will be taken through the the mind of the modern systems engineer, and discover how they use Salt to manage their infrastructures, and why those design decisions are so important. The inner workings of Salt will be explored, so that as you advance your knowledge of Salt, you will be able to swim with the current, rather than against it.

Various subsystems of Salt are explained in detail, including Salt SSH, Salt Cloud, and external pillars, filesystems, and job caches.

You will be taken through an in-depth discussion of how to effectively scale Salt to manage thousands of machines, and how to troubleshoot issues when things dont go exactly the way you expect them to.

You will also be taken through an overview of RAET, Salts new transport protocol, and given an insight into how this technology improves Salt, and the possibilities that it brings with it.


What You Will Learn
  • Learn how the pros are managing their infrastructures, and what techniques they use to keep everything running smoothly with Salt
  • Understand what makes Salt tick, and how that affects the way you use it
  • Take a look at familiar features in a new light, so that you have a better handle on how to approach tasks
  • Use Salt SSH to manage servers that dont fit Salts traditional use cases
  • Besides automating your configuration, you will be able to automate your servers, and make them behave more intelligently
  • Make better use of cloud-based services, including compute clouds such as EC2, Azure and Openstack
  • Learn about the new RAET protocol, and how it changes the way automation works

Who This Book Is For

This book is ideal for professionals who have been managing groups of servers, and want to learn how to add functionality and expand their tool set. This book will also explain some of the more advanced features of Salt, and explore how to use them to bring additional power to the fundamentals that the professionals have already been using.


Style and approach

This book speaks informally, sometimes almost conversationally, to the user. Topics are covered in detail, using examples that should be comfortable to most users.

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Mastering SaltStack

Mastering SaltStack

Copyright 2015 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: August 2015

Production reference: 1130815

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-78528-216-4

www.packtpub.com

Credits

Author

Joseph Hall

Reviewers

Pedro Algarvio

Darrel Clute

JiWei Liu

Hong nh Qun

Peng Yao

Commissioning Editor

Kartikey Pandey

Acquisition Editor

Vivek Anantharaman

Content Development Editor

Merwyn Dsouza

Technical Editor

Siddhesh Patil

Copy Editors

Relin Hedly

Sonia Mathur

Project Coordinator

Neha Bhatnagar

Proofreader

Safis Editing

Indexer

Monica Mehta

Graphics

Disha Haria

Production Coordinator

Nilesh R. Mohite

Cover Work

Nilesh R. Mohite

Foreword

This is the Salt book I have been wanting to see for a long time. As the creator of Salt, I feel that many people don't know about the advanced and powerful capabilities of the Salt platform. Diving into the parts of Salt less trodden is where the truly amazing value of Salt comes into play. The more powerful aspects of Salt, such as how to use the Reactor for dynamic intelligent management, how to use salt-ssh to manage a wide variety of situations, and how to take Salt to the next level, are revealed in this book in an easy-to-understand way. I hope that this book will be a great help in bringing the great power of Salt to more people.

Joseph Hall is likely the best person to write this book. He is not only a close friend, but has also been involved with the Salt project from the very beginning, including the early design of the Salt States system. Joseph is the second person to write code for Salt (apart from me). He was the first engineer hired by SaltStack.

Thomas S. Hatch

Founder and CTO, SaltStack

About the Author

Joseph Hall has touched just about every area of the modern technology world from his beginnings as a support technician to being a web programmer, QA engineer, systems administrator, Linux instructor, and cloud engineer. He is currently a senior cloud and integrations engineer at SaltStack. Joseph enjoys working with some of the best minds in the business with his coworkers and SaltStack's partners. He is also a classically trained chef. Joseph's supreme pleasure lies in working with what he calls computational gastronomy.

I would like to thank my wife, Nat, for her support when I stayed up every night to write this book. I would also like to thank Tom Hatch for writing Salt and having the guts to turn it into the best company that I've ever worked for. My sincere thanks go out to Colton Meyers for hooking me up with Packt Publishing. I would also like to thank the Salt community for being awesome and helping make Salt what it is today.

About the Reviewers

Pedro Algarvio was a Sound Technician until May 2015. He likes to keep himself busy. Therefore, Pedro set out to make computers work for him. In his endeavor to deepen his knowledge of computers, he started with shell scripting and then moved on to learn Perl, and finally settled with Python. Pedro was involved with several open source projects. However, he credits Salt for giving him the opportunity to learn the most. He joined SaltStack in May 2015 and dedicated his time to improve the Salt software.

I would like to thank my wife for her continuous friendship, love, and support throughout. She even supported me when I took the risk of quitting my job to to pursue a skill, in which I had no experience. I would also like to thank my twins for allowing me some spare time to review Joseph's book. Further, I want to thank the Salt community for teaching me new things everyday. Last but not least, I would like to thank God.

I love learning new things. SaltStack gave the opportunity to learn more about Salt, which made me grow as a Python coder and enthusiast. I would like to thank SaltStack for their continuous belief and encouragement to the point of inviting me to join the team.

Darrel Clute is an IT infrastructure architect. Throughout his career, he has predominately focused on network engineering. Darrel has also spent an equal amount of time focusing on systems engineering, primarily with Unix-based systems. Apart from his job, he is also an advocate of the open source software. This is used in enterprise as well as for individuals. Darrel will never advocate the use of open source purely for the sake of it.

Outside his core competencies, he also has extensive experience with proprietary and open source virtualization platforms. His knowledge and experience with IaaS solutionssuch as OpenStackis constantly increasing as well. Additionally, with his systems engineering experience, Darrel has been exposed to and has supported various web and enterprise applications. His most recent exposure has been to PaaS solutions. This has led him to advocate that a public or private cloud offering is not complete without coupling IaaS and PaaS solutions designed and deployed in lockstep.

Beyond his core infrastructure, Darrel has recently been developing programing skills to augment his daily activities. Throughout his career, he has utilized various languages and utilities to automate infrastructure. Some of Darrel's programming has been with the use of Bash, net-snmp, sed, awk, and holistically Python.

JiWei Liu graduated in 2011. He is employed as a cloud computing and operation and maintenance engineer at Gamewave Group Limited (PRC), China's largest web game provider. It is also the leader of the Chinese web game industry and the professional provider of interactive entertainment services.

I would like to thank my sweetheart for her help and support in the process of writing this book.

Hong nh Qun is a junior system administrator and network infrastructure engineer. He has extensive experience in designing, deploying, hardening, and maintaining Linux systems and the network infrastructure for small-and medium-sized companies.

Peng Yao is an operations engineer with more than 8 years of experience in infrastructure automation, data visualization, and cloud computing. He is the founder and coordinator of the China SaltStack user group.

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