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

Using SDB with Salt Cloud

Salt's simple database system was originally designed with a single idea in mind: to keep passwords out of Salt Cloud configuration files. Of course, they were immediately added to other configuration files as well, but that doesn't diminish their use here.

The classic examples of using SDB to store usernames and passwords still apply, of course:

  username: sdb://myetcd/username 
  password: sdb://myetcd/password 

But the new env SDB driver will prove valuable to a number of cloud users who make use of environment variables to store their authentication information.

Using SDB with OpenStack

OpenStack users have been making use of environment variables for years to store their personal cloud configuration. It is very common to set up a shell script that exports OpenStack variables to be used with the standard OpenStack commands. One such script might look like this:

export OS_USERNAME=larry 
export OS_PASSWORD=123pass 
export OS_TENANT_NAME...