The Puppet 3 Cookbook by Arundel, John -- Read -- Imperial Library of Trantor

Index

Puppet 3 Cookbook

Table of Contents Puppet 3 Cookbook Credits About the Author About the Reviewers www.PacktPub.com

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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. Puppet Infrastructure

Introduction

Linux distributions Puppet versions

Installing Puppet

Getting ready... How to do it...

Creating a manifest

How to do it...

Managing your manifests with Git

Getting ready... How to do it... How it works... There's more...

Creating a decentralized Puppet architecture

Getting ready How to do it... How it works... There's more...

Writing a papply script

How to do it... How it works...

Running Puppet from cron

Getting ready... How to do it... How it works... There's more...

Deploying changes with Rake

Getting ready How to do it... How it works... There's more...

Bootstrapping Puppet with Rake

Getting ready... How to do it... How it works...

Automatic syntax checking with Git hooks

How to do it… How it works…

2. Puppet Language and Style

Introduction Using community Puppet style

How to do it…

Indentation Quoting Variables Parameters Symlinks

There's more…

Checking your manifests with puppet-lint

Getting ready How to do it... There's more... See also

Using modules

How to do it… How it works… There's more…

Templates Facts, functions, types, and providers Autogenerating module layout Third party modules Module organization

See also

Using standard naming conventions

How to do it… There's more…

Using inline templates

How to do it… How it works… There's more... See also

Iterating over multiple items

How to do it… How it works… There's more…

Using hashes Creating arrays with the split function

Writing powerful conditional statements

How to do it… How it works… There's more…

Elsif branches Comparisons Combining expressions

See also

Using regular expressions in if statements

How to do it… How it works… There's more…

Capturing patterns Regular expression syntax

See also

Using selectors and case statements

How to do it… How it works…

Selector Case statement

There's more…

Regular expressions Defaults

Using the in operator

How to do it… There's more…

Using regular expression substitutions

How to do it… How it works… There's more See also

3. Writing Better Manifests

Introduction Using arrays of resources

How to do it… How it works… See also

Using definitions

How to do it… How it works… There's more… See also

Using dependencies

How to do it… How it works… There's more…

Using tags

How to do it... There's more…

Using run stages

How to do it… How it works… There's more… See also

Using node inheritance

How to do it… How it works… There's more… See also

Passing parameters to classes

How to do it… How it works… There's more… See also

Using class inheritance and overriding

How to do it… How it works… There's more…

Removing inherited attributes Adding extra values using +> Disabling resources

See also

Writing reusable, cross-platform manifests

How to do it… How it works... There's more… See also

Getting information about the environment

How to do it… How it works… There's more… See also

Importing dynamic information

Getting ready How to do it… How it works… There's more… See also

Passing arguments to shell commands

How to do it… How it works…

4. Working with Files and Packages

Introduction Making quick edits to config files

How to do it… How it works… There's more…

Using Augeas to automatically edit config files

How to do it… How it works… There's more…

Building config files using snippets

How to do it… How it works… There's more… See also

Using ERB templates

How to do it… How it works… There's more… See also

Using array iteration in templates

How to do it… How it works… There's more… See also

Using GnuPG to encrypt secrets

Getting ready How to do it... How it works... There's more... See also

Installing packages from a third-party repository

How to do it… How it works… There's more... See also

Building packages automatically from source

How to do it… How it works… There's more… See also

Comparing package versions

How to do it… How it works…

5. Users and Virtual Resources

Introduction Using virtual resources

How to do it… How it works… There's more…

Managing users with virtual resources

How to do it… How it works… There's more... See also

Managing users' SSH access

How to do it… How it works… There's more…

Managing users' customization files

How to do it… How it works… See also

Efficiently distributing cron jobs

How to do it… How it works… There's more… See also

Using schedules to limit when resources can be applied

How to do it… How it works… There's more…

Using host resources

How to do it… How it works... There's more...

Using multiple file sources

How to do it… How it works… There's more... See also

Distributing directory trees

How to do it… How it works… There's more…

Cleaning up old files

How to do it… How it works… There's more…

Auditing resources

How to do it… How it works… There's more… See also

Temporarily disabling resources

How to do it… How it works…

6. Applications

Introduction Managing Apache servers

How to do it... There's more...

Creating Apache virtual hosts

How to do it… How it works… There's more…

Custom domains and docroots Modifying all sites

See also

Creating Nginx virtual hosts

How to do it… How it works… There's more…

Managing MySQL

How to do it… How it works… There's more...

Creating MySQL databases

Managing Ruby

How to do it... How it works...

ruby-build rbenv

There's more...

7. Servers and Cloud Infrastructure

Introduction Building high-availability services using Heartbeat

Getting ready... How to do it… How it works… There's more…

Managing NFS servers and file shares

How to do it… How it works…

Using HAProxy to load-balance multiple web servers

How to do it… How it works… There's more…

Managing firewalls with iptables

Getting ready… How to do it… How it works… There's more…

Managing EC2 instances

Getting ready… How to do it… How it works… There's more...

Managing virtual machines with Vagrant

Getting ready… How to do it... How it works… There's more…

8. External Tools and the Puppet Ecosystem

Introduction Creating custom facts

How to do it… How it works... There's more... See also

Adding external facts

Getting ready... How to do it... How it works... There's more...

Debugging external facts Using external facts in Puppet

See also

Setting facts as environment variables

How to do it...

Importing configuration data with Hiera

Getting ready… How to do it… How it works… There's more…

Setting node-specific data with Hiera Looking up data with Hiera

See also

Storing secret data with hiera-gpg

Getting ready... How to do it... How it works... There's more... See also

Generating manifests with puppet resource

How to do it… There's more…

Generating manifests with other tools

Getting ready... How to do it... There's more...

Playing with Pysa Conclusion

Testing your manifests with rspec-puppet

Getting ready... How to do it... How it works... There's more... See also

Using public modules

How to do it… How it works… There's more…

Using an external node classifier

Getting ready... How to do it… How it works… There's more… See also

Creating your own resource types

How to do it… How it works… There's more…

Documentation Validation

Creating your own providers

How to do it… How it works… There's more…

Creating your own functions

How to do it... How it works... There's more...

9. Monitoring, Reporting, and Troubleshooting

Introduction Doing a dry run

How to do it… How it works… There's more… See also

Logging command output

How to do it… How it works… There's more…

Logging debug messages

How to do it… How it works… There's more…

Printing out variable values Checking when a resource is applied

Generating reports

How to do it… How it works… There's more… See also

Producing automatic HTML documentation

How to do it… How it works… There's more… See also

Drawing dependency graphs

Getting ready… How to do it… How it works… There's more… See also

Understanding Puppet errors

How to do it… See also

Inspecting configuration settings

How to do it… How it works… See also

Index

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