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Beginning Ansible Concepts and Application

Provisioning, Configuring, and Managing Servers, Applications, and Their Dependencies

Paperback Engels 2022 9781484281727
Verwachte levertijd ongeveer 8 werkdagen

Samenvatting

Learn the concepts and develop the skills to be a true Ansible artist and use it inside and outside the box. This book applies key concepts immediately while building up your Ansible skills layer by layer through easy to grasp examples and engaging projects. You’ll also think about security, why testing is important, and how to use version control safely.

As a beginner to Ansible, you'll be guided step-by-step through creating your first Ansible playbook to deploying your first server and writing more complex cross-dependency playbooks. From the first line of code to the last, you'll constantly iterate and simplify your playbooks, iwhile taking on more complex topics as you construct a full Wordpress website stack consisting of a database, web servers, and load balancer. This book will prompt you to think about how these fit together and will explain what to do to ensure maintainability long into the future.

Don’t just use Ansible. Completely change how you go about provisioning, configuring, and managing servers, applications, and their dependencies with this powerful, open source automation tool. In exchange for this power and efficiency, Ansible demands a very different way of thinking about resources and how they all fit together. This can be hard to get your head around if you’ve never done it before. Every step of the way, Beginning Ansible Concepts and Application show you best practices so that you can confidently start using Ansible right away.

What You'll Learn

Set up an Ansible environmentCreate and run playbooksOrganize groups of variables, vaults, roles, and tasks to ensure your playbooks are scalableProtect secrets using Ansible VaultsAutomate the build of a Wordpress website

Who This Book Is For

Developers looking for a better way to manage their servers other than by logging in and typing commands. Also enthusiasts who want to learn not just how to use Ansible but how to use it correctly and confidently.

Specificaties

ISBN13:9781484281727
Taal:Engels
Bindwijze:paperback
Uitgever:Apress
Hoofdrubriek:

Lezersrecensies

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Inhoudsopgave

Chapter 1 – Setting the Scene

Foundations of Ansibl

Create an environment 

Challenges to come

 Chapter 2 – Say Hello to Ansible

Introduce Ansible 

History 

Tools 

 Chapter 3 – Getting Ansible and Setting Up the Environment

Download and set up Ansible

Using virtual python environments 

Using VirtualBox

 Chapter 4 – Your First Steps with Ansible

Play with Ansible

Revision control and security aspects

Python 2 vs 3

 Chapter 5 – Run Your First playbook

 

Create and run your first playbook

Structure of a playbook

Put servers under source control

 

 Chapter 6 – Designing an Inventory

Using localhost 

Inventories 

 Chapter 7 – Setting Your Sights – Target the Servers You Want

Setting up real servers

Playbook skills and inventory skillsWriting the playbook 

 Chapter 8 – Batteries Included – The Core Modules

Core modules

Installing packages, copying config files, and making changes to system config

Web based documentation Chapter 9 – Gathering Data and the Power of Facts

Using fact gathering

Automatic (implicit) fact-gathering for every playbook

Explicit fact gathering

Stat to gain information on files, directories, and symbolic links

 Chapter 10 – The Building Blocks of Ansible – Roles

 Chapter 11 – Making Decisions and Controlling Flow

Conditionals 

Options 

includes and when clauses Chapter 12 – Repeating Yourself

Loops 

Syntax 

 Chapter 13 – Jinja 2 and the Power of Templates

 Chapter 14 – Structuring Your Repo for Success

Basic directory structure 

Organize groups of variables, vaults, roles, and tasks to ensure your playbooks are scalable

 Chapter 15 – Locking Away Your Secrets

Ansible-vaults

Environment specific encrypted stores

 Chapter 16 – Extending the Power of Ansible

Creation of custom modules

Module types (actions, filters, callback to name a few)

Hints and tips on when a plugin is the right course of action Chapter 17 – Dynamically Generating Your Inventory

Inventory, or CMDB

Inventory source 

Simple web service to pull in the ansible inventory at runtime

Meta groups 

 Chapter 18 – Community

Share playbooks with like-minded sysadmins

Ansible Galaxy

 Chapter 19 - Troubleshooting Ansible

 Chapter 20 – Other Projects Around AnsiblePOSSIBLE: document interesting projects that make use of Ansible's power, such as ansible-cmdb

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        Beginning Ansible Concepts and Application