Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Mastering SaltStack

You're reading from   Mastering SaltStack Use Salt to the fullest

Arrow left icon
Product type Paperback
Published in Nov 2016
Publisher Packt
ISBN-13 9781786467393
Length 378 pages
Edition 2nd Edition
Arrow right icon
Author (1):
Arrow left icon
Joseph Hall Joseph Hall
Author Profile Icon Joseph Hall
Joseph Hall
Arrow right icon
View More author details
Toc

Table of Contents (14) Chapters Close

Preface 1. Essentials Revisited FREE CHAPTER 2. Diving into Salt Internals 3. Managing States 4. Exploring Salt SSH 5. Managing Tasks Asynchronously 6. Taking Advantage of Salt Information Systems 7. Taking Salt Cloud to the Next Level 8. Using Salt with REST 9. Understanding the RAET and TCP Transports 10. Strategies for Scaling 11. Monitoring with Salt 12. Exploring Best Practices 13. Troubleshooting Problems

Building reactors


Now you have seen what events look like, but what can you do with them? One of the most powerful features that distinguishes Salt from similar systems is not only its ability to fire events, but also the ability for the master to initiate new jobs based on the information contained in the event.

This reactor system serves as a platform for users to build systems that are both asynchronous and autonomous, which can range from simple to very complex.

Configuring reactors

Reactors are master-side processes, so none of the configuration needs to happen directly on any minions. In fact, as the reactor system needs to actively listen to an event bus in order for it to function, it doesn't even make sense to attempt to use it in a masterless environment based on the salt-call commands.

Before setting up the master, decide which directory will contain reactor files. By convention, this will be /srv/reactor/, but this is not a hardcore requirement and is not enforced anywhere in Salt...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime