Book Image

Learning SaltStack - Second Edition

By : Colton Myers
Book Image

Learning SaltStack - Second Edition

By: Colton Myers

Overview of this book

SaltStack is one of the best infrastructure management platforms available. It provides powerful tools for defining and enforcing the state of your infrastructure in a clear, concise way. With this book learn how to use these tools for your own infrastructure by understanding the core pieces of Salt. In this book we will take you from the initial installation of Salt, through running their first commands, and then talk about extending Salt for individual use cases. From there you will explore the state system inside of Salt, learning to define the desired state of our infrastructure in such a way that Salt can enforce that state with a single command. Finally, you will learn about some of the additional tools that salt provides, including salt-cloud, the reactor, and the event system. We?ll finish by exploring how to get involved with salt and what'?s new in the salt community. Finally, by the end of the book, you'll be able to build a reliable, scalable, secure, high-performance infrastructure and fully utilize the power of cloud computing.
Table of Contents (17 chapters)
Learning SaltStack Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Chapter 8. The Reactor and the Event System

In the previous chapter, you learned how to use salt-cloud to manage your cloud VMs.

In this chapter, you are going to learn how to make your infrastructure reactive and self-healing using events and the reactor in Salt.

You'll learn about the following things:

  • The event system built into Salt

  • How to fire events, both from Salt and from third-party applications

  • How to create reactions to events