Book Image

Ansible for Real-Life Automation

By : Gineesh Madapparambath
Book Image

Ansible for Real-Life Automation

By: Gineesh Madapparambath

Overview of this book

Get ready to leverage the power of Ansible’s wide applicability to automate and manage IT infrastructure with Ansible for Real-Life Automation. This book will guide you in setting up and managing the free and open source automation tool and remote-managed nodes in the production and dev/staging environments. Starting with its installation and deployment, you’ll learn automation using simple use cases in your workplace. You’ll go beyond just Linux machines to use Ansible to automate Microsoft Windows machines, network devices, and private and public cloud platforms such as VMWare, AWS, and GCP. As you progress through the chapters, you’ll integrate Ansible into your DevOps workflow and deal with application container management and container platforms such as Kubernetes. This Ansible book also contains a detailed introduction to Red Hat Ansible Automation Platform to help you get up to speed with Red Hat AAP and integration with CI/CD and ITSM. What’s more, you’ll implement efficient automation solutions while learning best practices and methods to secure sensitive data using Ansible Vault and alternatives to automate non-supported platforms and operations using raw commands, command modules, and REST API calls. By the end of this book, you’ll be proficient in identifying and developing real-life automation use cases using Ansible.
Table of Contents (22 chapters)
1
Part 1: Using Ansible as Your Automation Tool
6
Part 2: Finding Use Cases and Integrations
16
Part 3: Managing Your Automation Development Flow with Best Practices

Managing multi-container applications using Ansible

In this section, you will use the well-known Content Management System (CMS) application stack known as WordPress (https://wordpress.org). The WordPress application is based on multiple application stacks, including PHP, a web server, and a database. The WordPress application is available as a container image (https://hub.docker.com/_/wordpress). For the database, we will deploy another container using MariaDB (https://hub.docker.com/_/mariadb).

Please refer to the Chapter-10/deploy-wordpress-on-docker.yaml file to see the Ansible playbook for deploying the WordPress CMS using Ansible. Follow these steps:

  1. We declared the essential parameters on top of the playbook, as shown in the following screenshot. Remember to store sensitive data such as database usernames and passwords using Ansible Vault (or Credential in Ansible Automation Controller) or other secret management services. These variables are then passed to the container...