Ansible: Up and Running

Copyright
 Table of Contents
 Foreword
 Preface to the Second Edition
 A Note About Language
 Acknowledgments
 From Lorin
 From René
 Preface to the First Edition
 Why I Wrote This Book
 Who Should Read This Book
 Navigating This Book
 Conventions Used in This Book
 Online Resources
 Safari® Books Online
 How to Contact Us
 Chapter 1. Introduction
 A Note About Versions
 Ansible: What Is It Good For?
 How Ansible Works
 What's So Great About Ansible?
 Easy-to-Read Syntax
 Nothing to Install on the Remote Hosts
 Push Based
 Ansible Scales Down
 Built-in Modules
 Very Thin Layer of Abstraction. Is Ansible Too Simple?What Do I Need to Know?
 What Isn't Covered
 Installing Ansible
 Setting Up a Server for Testing
 Using Vagrant to Set Up a Test Server
 Telling Ansible About Your Test Server
 Simplifying with the ansible.cfg File
 Moving Forward
 Chapter 2. Playbooks: A Beginning
 Some Preliminaries
 A Very Simple Playbook
 Specifying an Nginx Config File
 Creating a Custom Home Page
 Creating a Webservers Group
 Running the Playbook
 Playbooks Are YAML
 Start of File
 Comments
 Strings
 Booleans
 Lists
 Dictionaries
 Line Folding
 Anatomy of a Playbook
 Plays
 Tasks
 Modules. Putting It All TogetherDid Anything Change? Tracking Host State
 Getting Fancier: TLS Support
 Generating a TLS Certificate
 Variables
 Generating the Nginx Configuration Template
 Handlers
 Running the Playbook
 Chapter 3. Inventory: Describing Your Servers
 The Inventory File
 Preliminaries: Multiple Vagrant Machines
 Behavioral Inventory Parameters
 ansible_connection
 ansible_shell_type
 ansible_python_interpreter
 ansible_*_interpreter
 Changing Behavioral Parameter Defaults
 Groups and Groups and Groups
 Example: Deploying a Django App
 Aliases and Ports
 Groups of Groups. Numbered Hosts (Pets versus Cattle)Hosts and Group Variables: Inside the Inventory
 Host and Group Variables: In Their Own Files
 Dynamic Inventory
 The Interface for a Dynamic Inventory Script
 Writing a Dynamic Inventory Script
 Preexisting Inventory Scripts
 Breaking the Inventory into Multiple Files
 Adding Entries at Runtime with add_host and group_by
 add_host
 group_by
 Chapter 4. Variables and Facts
 Defining Variables in Playbooks
 Viewing the Values of Variables
 Registering Variables
 Facts
 Viewing All Facts Associated with a Server
 Viewing a Subset of Facts. Any Module Can Return FactsLocal Facts
 Using set_fact to Define a New Variable
 Built-in Variables
 hostvars
 inventory_hostname
 Groups
 Setting Variables on the Command Line
 Precedence
 Chapter 5. Introducing Mezzanine: Our Test Application
 Why Deploying to Production Is Complicated
 PostgreSQL: The Database
 Gunicorn: The Application Server
 Nginx: The Web Server
 Supervisor: The Process Manager
 Chapter 6. Deploying Mezzanine with Ansible
 Listing Tasks in a Playbook
 Organization of Deployed Files
 Variables and Secret Variables.