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  • Book Overview & Buying Mastering SaltStack
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Mastering SaltStack

Mastering SaltStack - Second Edition

By : Joseph Hall
4.6 (5)
Buy this Book
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Mastering SaltStack

Mastering SaltStack

4.6 (5)
By: Joseph Hall
Buy this Book

Overview of this book

SaltStack is a powerful configuration management and automation suite designed to manage servers and tens of thousands of nodes. This book showcases Salt as a very powerful automation framework. We will review the fundamental concepts to get you in the right frame of mind, and then explore Salt in much greater depth. You will explore Salt SSH as a powerful tool and take Salt Cloud to the next level. Next, you’ll master using Salt services with ease in your infrastructure. You will discover methods and strategies to scale your infrastructure properly. You will also learn how to use Salt as a powerful monitoring tool. By the end of this book, you will have learned troubleshooting tips and best practices to make the entire process of using Salt pain-free and easy.
Table of Contents (14 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Lock Free Chapter
1
1. Essentials Revisited
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1. Essentials Revisited
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Executing commands remotely
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SLS file trees
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Using states for configuration management
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The basics of grains, pillars, and templates
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Summary
2
2. Diving into Salt Internals
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2. Diving into Salt Internals
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Understanding the Salt configuration
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The renderer
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Understanding the loader
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Plunging into the state compiler
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Summary
3
3. Managing States
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3. Managing States
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Handling multiple states
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Spanning multiple environments
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Understanding master_tops
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Using Salt Stack Formulas on GitHub
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Using the Salt Package Manager
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Summary
4
4. Exploring Salt SSH
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4. Exploring Salt SSH
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Grappling with SSH
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Using rosters
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Understanding the salt-thin agent
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Using the raw SSH mode
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Summary
5
5. Managing Tasks Asynchronously
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5. Managing Tasks Asynchronously
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Looking at the event system
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Building reactors
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Using Thorium
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Using the queue system
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Summary
6
6. Taking Advantage of Salt Information Systems
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6. Taking Advantage of Salt Information Systems
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Understanding pillar_roots
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Using Salt's external pillars
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Understanding SDB
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Comparing pillars and SDB
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Summary
7
7. Taking Salt Cloud to the Next Level
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7. Taking Salt Cloud to the Next Level
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Examining the Salt Cloud configuration
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Using SDB with Salt Cloud
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Building custom deploy scripts
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Taking a look at cloud maps
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Using reactors with Salt Cloud
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Working with autoscale reactors
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Summary
8
8. Using Salt with REST
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8. Using Salt with REST
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Looking at Salt's HTTP library
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Understanding the Salt API
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Working with webhooks
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Summary
9
9. Understanding the RAET and TCP Transports
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9. Understanding the RAET and TCP Transports
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Comparing RAET and ZeroMQ
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Flow-based programming
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Driving with RAET
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Looking at asynchronous programming
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Examining the TCP transport
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Using the TCP transport
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Summary
10
10. Strategies for Scaling
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10. Strategies for Scaling
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All about syndication
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High availability with multiple masters
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Incorporating external data sources
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Using the master API
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Testing the load in the infrastructure
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Summary
11
11. Monitoring with Salt
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11. Monitoring with Salt
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Monitoring basics
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Monitoring with returners
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Using monitoring states
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Working with beacons
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Setting up alerts
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Using aggregate data with Thorium
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Summary
12
12. Exploring Best Practices
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12. Exploring Best Practices
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Future-proofing your infrastructure
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Setting up your directories
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The SLS efficiency
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Naming conventions
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Templates and variables
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Summary
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13. Troubleshooting Problems
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13. Troubleshooting Problems
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What the...?
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Using salt-call locally
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Working with YAML
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Asking the community for help
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Summary

Chapter 1.  Essentials Revisited

Salt is a very powerful remote automation framework. Before we delve into the more advanced topics that this book covers, it would be wise to go back and review a few essentials. In this chapter, we will cover the following topics:

  • Using remote execution
  • Basic SLS file tree structure
  • Using states for configuration management
  • Basics of grains, pillars, and templates

This book assumes that you already have root access on a device with a common distribution of Linux installed. The machine used in the examples in this book is running Ubuntu 14.04, unless stated otherwise. Most examples should run on other major distributions, such as recent versions of Fedora, RHEL 5/6/7, Suse, or Arch Linux.

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Mastering SaltStack
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