Learning SaltStack - Second Edition电子书

Learning SaltStack Second Edition

Table of Contents

Learning SaltStack Second Edition

Credits

About the Author

About the Reviewer

www.PacktPub.com

eBooks, discount offers, and more

Why subscribe?

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Diving In – Our First Salt Commands

Introducing Salt

Installing Salt

Installation with system packages (Ubuntu)

Installation with system packages (CentOS 6)

Installation with system packages (Windows)

Installing with Salt Bootstrap

Configuring Salt

Firewall configuration

Salt minion configuration

Starting the Salt master and Salt minion

Accepting the minion key on the master

A game of ping pong

Masterless Salt

Summary

2. Controlling Your Minions with Remote Execution

The structure of a remote execution command

Command-line options

Targeting strings

Glob matching

Perl-compatible regular expression matching

List matching

Grain and pillar matching

Using grains

Using pillars

Compound matching

Remote execution modules and functions

Adding users

Installing packages

Managing services

Monitoring minion states

Running arbitrary commands

Summary

3. Execution Modules – Write Your Own Solution

Exploring the source

Cross-calling execution modules

Grains and the __virtual__ function

The__opts__ and __pillar__ functions

Reformatting return data

An advanced example

Summary

4. Defining the State of Your Infrastructure

Our first state

The pieces of a state declaration

Expanding to encompass multiple pieces of state

Dependencies using requisites

The require requisite

The watch requisite

Other requisites

The _in requisites

Summary

5. Expanding Our States with Jinja2 and Pillar

Adding a new minion

Jinja2

apache2 or httpd?

Defining secure minion-specific data in pillar

Using pillar data in states

Summary

6. The Highstate and Environments

The highstate

Environments

Environments in pillar

Expanding our base environment

Storing our states in Git with GitFS

Summary

7. Using Salt Cloud to Manage Virtual Minions

Setting up Salt Cloud

Setting up Linode

Creating an API key

Creating a cloud provider configuration

Creating cloud VM profiles

Creating and destroying machines

Managing groups of VMs with map files

Creating new masters with the map files

Summary

8. The Reactor and the Event System

The Salt event system

Listening for events

Event structure

Firing events from Salt

Firing events from custom code

Reacting to events

Summary

9. Security Best Practices in Salt

Securing Salt configuration

Master configuration

open_mode and auto_accept

file_recv

Peer publishing

Minion configuration

master_finger

Key management

Preseeding the minion keys

Preseeding the master key

Verifying with key fingerprints

Master fingerprint

Minion fingerprints

Firewall and network configuration

Summary

10. How Can I Get Involved?

Contributing code using GitHub

Creating an account on GitHub

The project

Getting the code

Contributing a fix

Committing our changes

Pushing the changes and creating a pull request

Other ways to get involved

Salt-users mailing list

#salt on freenode IRC

#saltstack on the hangops Slack

Summary

Index