Book Image

Mastering SaltStack - Second Edition

By : Joseph Hall
Book Image

Mastering SaltStack - Second Edition

By: Joseph Hall

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 (20 chapters)
Mastering SaltStack Second Edition
About the Author
About the Reviewer

Chapter 6.  Taking Advantage of Salt Information Systems

To the newly initiated, one of the stranger aspects of Salt is the absence of a configuration management database (CMDB). The fact is that Salt was designed to query minions quickly to return the data normally found in a CMDB in real time.

The mechanism used to discover that information was the grains system. However, using the minion itself to manage that information presents some limitations. The pillar system, and later the SDB system, was added to help address these limitations. In this chapter, we'll cover:

  • Templating files in pillar_roots

  • Using the external pillars that ship with Salt

  • Understanding SDB, the Simple Database System

  • Understanding the differences between pillars and SDB