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Learning SaltStack
Colton Myers
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eBook - ePub
Learning SaltStack
Colton Myers
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Informations
Sujet
InformaticaSous-sujet
DatabaseLearning SaltStack
Table of Contents
Learning SaltStack
Credits
About the Author
About the Reviewers
www.PacktPub.com
Support files, eBooks, discount offers, and more
Why subscribe?
Free access for Packt account holders
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Errata
Piracy
Questions
1. Diving In â Our First Salt Commands
Introducing Salt
Installing Salt
Installation with system packages (Ubuntu)
Installing with Salt-Bootstrap
Configuring Salt
Firewall configuration
Salt minion configuration
Starting the Salt master and Salt minion
Accepting the minion key on the master
A game of ping pong
Masterless Salt
Summary
2. Controlling Your Minions with Remote Execution
The structure of a remote execution command
Command-line options
Targeting strings
Glob matching
Perl-compatible regular expression matching
List matching
Grain and pillar matching
Grains
Pillars
Compound matching
Remote execution modules and functions
Adding users
Installing packages
Managing services
Monitoring minion states
Running arbitrary commands
Summary
3. Execution Modules â Write Your Own Solution
Exploring the source
Cross-calling execution modules
Grains and the __virtual__ function
The__opts__ and __pillar__ functions
Reformatting return data
An advanced example
Summary
4. Defining the State of Your Infrastructure
Our first state
The pieces of a state declaration
Expanding to encompass multiple pieces of state
Dependencies using requisites
The require requisite
The watch requisite
Other requisites
The _in requisites
Summary
5. Expanding Our States with Jinja2 and Pillar
Adding a new minion
Jinja2
apache2 or httpd?
Defining secure minion-specific data in pillar
Using pillar data in states
Summary
6. The Highstate and Environments
The highstate
Environments
Environments in pillar
Expanding our base environment
Storing our states in Git with GitFS
Summary
7. Using Salt Cloud to Manage Virtual Minions
Setting up Salt Cloud
Setting up Linode
Creating an API key
Creating a cloud provider configuration
Creating cloud VM profiles
Create and destroy machines
Managing groups of VMs with map files
Creating new masters with map files
Summary
8. The Reactor and the Event System
The Salt event system
Listening for events
Event structure
Firing events from Salt
Firing events from custom code
Reacting to events
Summary
Index
Learning 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: January 2015
Production reference: 1210115
Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham B3 2PB, UK.
ISBN 978-1-78439-460-8
www.packtpub.com
Credits
Author
Colton Myers
Reviewers
Darrel Clute
Cameron R. Lane
HoĂ ng ÄĂŹnh QuĂąn
Commissioning Editor
Pramila Balan
Acquisition Editor
Kevin Colaco
Content Development Editor
Parita Khedekar
Technical Editor
Vijin Boricha
Copy Editors
Sarang Chari
Relin Hedly
Project Coordinator
Neha Thakur
Proofreaders
Simran Bhogal
Stephen Copestake
Maria Gould
Ameesha Green
Paul Hindle
Indexer
Tejal Soni
Production Coordinator
Alwin Roy
Cover Work
Alwin Roy
About the Author
Colton Myers is a software engineer living in Salt Lake City, Utah. Since graduating with a BS in computer science from the University of Utah, he has worked professionally writing software in Python. Colton loves working on open source software, and he has represented the US PyCon conference as a speaker multiple times.
He is a SaltStack Certified Trainer and has worked on the Salt open source software for years. At the time of writing this book, Colton was working as a platform engineer for SaltStack.
You can find him on Twitter and GitHub at
@basepi
.