Puppet 5 Cookbook电子书

Title Page

Copyright and Credits

Puppet 5 Cookbook Fourth Edition

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Contributors

About the author

About the reviewer

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Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Download the color images

Conventions used

Sections

Getting ready

How to do it...

How it works...

There's more...

See also

Get in touch

Reviews

Puppet Language and Style

Introduction

Adding a resource to a node

How to do it...

How it works...

See also...

Using facter to describe a node

How to do it...

How it works...

There's more...

Variables

Scope

Using puppet facts

How to do it...

Installing a package before starting a service

How to do it...

How it works...

Learning metaparameters and ordering

Trifecta

Idempotency

Installing, configuring, and starting a service

How to do it...

How it works...

Using community Puppet style

How to do it...

Indentation

Quoting

false

Variables

Parameters

Symlinks

Installing Puppet

How to do it...

Creating a manifest

How to do it...

There's more...

Checking your manifests with puppet-lint

Getting ready

How to do it...

There's more...

See also

Making modules

How to do it...

How it works...

There's more...

Templates

Facts, functions, types, and providers

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

Puppet 5 changes

Using the call function

Puppet 4/5 changes

Appending to and concatenating arrays

Merging hashes

Using the sensitive type

Lambda functions

reduce

filter

map

slice

each

Functions in Puppet language

Puppet Infrastructure

Introduction

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...

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...

Bootstrapping Puppet with bash

Getting ready

How to do it...

How it works...

There's more...

Creating a centralized Puppet infrastructure

Getting ready

How to do it...

How it works...

There's more...

Creating certificates with multiple DNS names

Getting ready

How to do it...

How it works...

Setting up the environment

Getting ready

How to do it...

There's more...

Configuring PuppetDB

Getting ready

How to do it...

How it works...

There's more...

Configuring Hiera

How to do it...

How it works...

There's more...

Environment-specific Hiera

Getting ready

How to do it...

How it works...

Setting node-specific data with Hiera

Getting ready

How to do it...

How it works...

Writing a custom Hiera5 function

Getting ready

How to do it...

How it works...

There's more...

Storing secret data with hiera-eyaml

Getting ready

How to do it...

How it works...

There's more...

Automatic syntax-checking with Git hooks

How to do it...

How it works...

Pushing code around with Git

Getting ready

How to do it...

How it works...

Managing environments with Git

Getting ready

How to do it...

How it works...

There's more...

Writing Better Manifests

Introduction

Using arrays of resources

How to do it...

How it works...

There's more...

See also

Using resource defaults

How to do it...

How it works...

There's more...

Using defined types

How to do it...

How it works...

There's more...

See also

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 roles and profiles

How to do it...

How it works...

There's more...

Using data types in Puppet

How to do it...

There's more...

Passing parameters to classes

How to do it...

How it works...

There's more...

Specifying default values

Passing parameters from Hiera

Getting ready

How to do it...

How it works...

There's more...

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...

Working with Files and Packages

Introduction

Making quick edits to config files

Getting ready

How to do it...

How it works...

There's more...

Editing INI-style files with puppetlabs-inifile

Getting ready

How to do it...

How it works...

There's more...

Using Augeas to reliably edit config files

How to do it...

How it works...

There's more...

Building config files using snippets

Getting ready

How to do it...

How it works...

Using ERB templates

How to do it...

How it works...

There's more...

See also

Using array iterations in templates

How to do it...

How it works...

There's more...

See also

Using EPP templates

How to do it...

How it works...

There's more...

Using GnuPG to encrypt secrets

Getting ready

How to do it...

How it works...

There's more...

See also

Comparing package versions

How to do it...

How it works...

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...

There's more...

See also

Using exported resources

Getting ready

How to do it...

How it works...

There's more...

Managing Resources and Files

Introduction

Distributing cron jobs efficiently

How to do it...

How it works...

There's more...

See also

Scheduling when resources are to 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 exported host resources

Getting ready

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 and merging 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...

Managing Applications

Introduction

Using public modules

How to do it...

How it works...

There's more...

Managing Apache servers

How to do it...

How it works...

Creating Apache virtual hosts

How to do it...

How it works...

There's more...

Creating NGINX virtual hosts

How to do it...

How it works...

There's more...

Managing MariaDB

How to do it...

How it works...

There's more...

Creating databases and users

How to do it...

How it works...

There's more...

Servers and Cloud Infrastructure

Introduction

Managing firewalls with iptables

Getting ready

How to do it...

How it works...

There's more...

Building high-availability services using Keepalived

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 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...

Managing Docker with Puppet

Getting ready

How to do it...

How it works...

There's more...

External Tools and the Puppet Ecosystem

Introduction

Creating custom facts

How to do it...

How it works...

There's more...

Adding external facts

Getting ready

How to do it...

How it works...

There's more...

Debugging external facts

Using external facts in Puppet

Setting facts as environment variables

How to do it...

Generating manifests with the Puppet resource command

How to do it...

There's more...

Generating manifests with other tools

Getting ready

How to do it...

There's more...

Using PDK

Getting ready

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 custom functions

How to do it...

How it works...

There's more...

Testing your puppet manifests with rspec-puppet

Getting ready

How to do it...

How it works...

There's more...

Monitoring, Reporting, and Troubleshooting

Introduction

Noop—the don't-change-anything option

How to do it...

How it works...

There's more...

See also

Logging the 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...

Resource ordering

Generating reports

How to do it...

How it works...

There's more...

Other report types

See also

Producing automatic HTML documentation

Getting ready...

How to do it...

How it works...

There's more...

Drawing dependency graphs

Getting ready

How to do it...

How it works...

When Puppet looks for the dependencies

There's more...

See also

Understanding Puppet errors

How to do it...

Could not retrieve file metadata for XXX: getaddrinfo: Name or service not known

Could not evaluate: Could not retrieve information from environment production source(s) XXX

Error: Could not set 'file' on ensure: No such file or directory XXX

Change from absent to file failed: Could not set 'file on ensure: No such file or directory

Undefined method 'closed?' for nil:NilClass

Duplicate definition: X is already defined in [file] at line Y; cannot redefine at [file] line Y

See also

Inspecting configuration settings

How to do it...

How it works...

See also

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