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  • Book Overview & Buying Learning SaltStack
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Learning SaltStack

Learning SaltStack

By : Myers
4.3 (18)
Buy this Book
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Learning SaltStack

Learning SaltStack

4.3 (18)
By: Myers
Buy this Book

Overview of this book

If you are a system administrator who manages multiple servers, then you know how difficult it is to keep your infrastructure in line. If you've been searching for an easier way, this book is for you. No prior experience with SaltStack is required.
Table of Contents (10 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
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1
1. Diving In – Our First Salt Commands
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1. Diving In – Our First Salt Commands
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Introducing Salt
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Installing Salt
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Configuring Salt
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A game of ping pong
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Masterless Salt
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Summary
2
2. Controlling Your Minions with Remote Execution
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2. Controlling Your Minions with Remote Execution
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The structure of a remote execution command
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Summary
3
3. Execution Modules – Write Your Own Solution
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3. Execution Modules – Write Your Own Solution
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Exploring the source
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An advanced example
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Summary
4
4. Defining the State of Your Infrastructure
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4. Defining the State of Your Infrastructure
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Our first state
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The pieces of a state declaration
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Expanding to encompass multiple pieces of state
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Dependencies using requisites
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Summary
5
5. Expanding Our States with Jinja2 and Pillar
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5. Expanding Our States with Jinja2 and Pillar
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Adding a new minion
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Jinja2
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Defining secure minion-specific data in pillar
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Summary
6
6. The Highstate and Environments
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6. The Highstate and Environments
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The highstate
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Storing our states in Git with GitFS
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Summary
7
7. Using Salt Cloud to Manage Virtual Minions
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7. Using Salt Cloud to Manage Virtual Minions
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Setting up Salt Cloud
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Managing groups of VMs with map files
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Summary
8
8. The Reactor and the Event System
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8. The Reactor and the Event System
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The Salt event system
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Reacting to events
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Summary
9
Index
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Index

Chapter 3. Execution Modules – Write Your Own Solution

In the previous chapter, we went over remote execution commands in detail, learning how to target our commands and get things done using Salt's remote execution modules.

In this chapter, we will expand on Salt's remote execution system by diving into the code. You will learn the following things:

  • What an execution module is made up of (and inspect some of the execution modules that ship with Salt)
  • How to write our own execution module functions
  • The extra tools that are easily available to us in the context of execution modules
  • How to sync our execution modules to our minions

Note that in this chapter, we will be inspecting and writing a good deal of Python code. We will not be reviewing basic Python syntax, so if you're unfamiliar with Python, I recommend that you run through the tutorial at https://docs.python.org/2/tutorial/index.html or check out one of the many Python books available from Packt Publishing...

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