Learning SaltStack

Packt Publishing Ltd
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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.
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About the author

Colton Myers is a software engineer living in Salt Lake City, Utah. Since graduating with a BS in computer science from the University of Utah, he has worked professionally writing software in Python. Colton loves working on open source software, and he has represented the US PyCon conference as a speaker multiple times. He is a SaltStack Certified Trainer and has worked on the Salt open source software for years. At the time of writing this book, Colton was working as a platform engineer for SaltStack. You can find him on Twitter and GitHub at @basepi.
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Additional Information

Publisher
Packt Publishing Ltd
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Published on
Jan 27, 2015
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Pages
174
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ISBN
9781784399016
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Language
English
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Genres
Computers / Cloud Computing
Computers / Databases / Servers
Computers / Networking / General
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Content Protection
This content is DRM free.
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Available on Android devices
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Take charge of SaltStack to automate and configure enterprise-grade environmentsAbout This BookAutomate tasks effectively, so that your infrastructure can run itselfTake advantage of cloud-based services that can expand the capabilities of your own data centersTackle real-world problems that appear in everyday situationsIn Detail

SaltStack is known as a popular configuration management system, but that barely scratches the surface. It is, in fact, a powerful automation suite, which is designed not only to help you manage your servers, but to help them manage themselves. SaltStack is used worldwide by organizations ranging from just a few servers, to tens of thousands of nodes across data centers in multiple continents. This award-winning software is fast becoming the standard for systems management in the cloud world.

This book will take you through the advanced features of SaltStack, bringing forward capabilities that will help you excel in the management of your servers.

You will be taken through the the mind of the modern systems engineer, and discover how they use Salt to manage their infrastructures, and why those design decisions are so important. The inner workings of Salt will be explored, so that as you advance your knowledge of Salt, you will be able to swim with the current, rather than against it.

Various subsystems of Salt are explained in detail, including Salt SSH, Salt Cloud, and external pillars, filesystems, and job caches.

You will be taken through an in-depth discussion of how to effectively scale Salt to manage thousands of machines, and how to troubleshoot issues when things don't go exactly the way you expect them to.

You will also be taken through an overview of RAET, Salt's new transport protocol, and given an insight into how this technology improves Salt, and the possibilities that it brings with it.

What You Will LearnLearn how the pros are managing their infrastructures, and what techniques they use to keep everything running smoothly with SaltUnderstand what makes Salt tick, and how that affects the way you use itTake a look at familiar features in a new light, so that you have a better handle on how to approach tasksUse Salt SSH to manage servers that don't fit Salt's traditional use casesBesides automating your configuration, you will be able to automate your servers, and make them behave more intelligentlyMake better use of cloud-based services, including compute clouds such as EC2, Azure and OpenstackLearn about the new RAET protocol, and how it changes the way automation worksWho This Book Is For

This book is ideal for professionals who have been managing groups of servers, and want to learn how to add functionality and expand their tool set. This book will also explain some of the more advanced features of Salt, and explore how to use them to bring additional power to the fundamentals that the professionals have already been using.

Style and approach

This book speaks informally, sometimes almost conversationally, to the user. Topics are covered in detail, using examples that should be comfortable to most users.

Perfect for end users, analysts,  data scientists, and app developers, this best-selling guide will get you up and running with SQL, the language of databases. You'll find general concepts, practical answers, and clear explanations of what the various SQL statements can do. Hundreds of examples of varied difficulty encourage you to experiment and explore. Full-color SQL code listings help you see the elements and structure of the language. You can download the sample database to follow along with the author's examples.


- Covers Oracle, Microsoft SQL Server, IBM DB2, MySQL, PostgreSQL, and Microsoft Access.

- Learn the core language for standard SQL, and variations for the most widely used database systems.

- Organize your database in terms of the relational model.

- Master tables, columns, rows, and keys.

- Retrieve, sort, and format data.- Filter the data that you don't want to see.

- Convert and manipulate data with SQL's built-in functions and operators.

- Use aggregate functions to summarize data.

- Create complex SQL statements by using joins, subqueries, constraints, conditional logic, and metadata.

- Create, alter, and drop tables, indexes, and views.

- Insert, update, delete, and merge data.

- Execute transactions to maintain the integrity of your data.

- Avoid common pitfalls involving nulls.

- Troubleshoot and optimize queries.

- Plenty of tips, tricks, and timesavers.

- Fully cross-referenced, linked, and searchable.


Contents

Introduction

1. Running SQL Programs

2. The Relational Model

3. SQL Basics

4. Retrieving Data from a Table

5. Operators and Functions

6. Summarizing and Grouping Data

7. Joins

8. Subqueries

9. Set Operations

10. Inserting, Updating, and Deleting Rows

11. Creating, Altering, and Dropping Tables

12. Indexes

13. Views

14. Transactions


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