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Ansible for Real-Life Automation

Ansible for Real-Life Automation

By : Gineesh Madapparambath
3.9 (7)
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Ansible for Real-Life Automation

Ansible for Real-Life Automation

3.9 (7)
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)
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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

Using secrets in Ansible playbooks

You have learned the basic usage of secrets in an Ansible playbook in Chapter 3’s Automating notifications section. In this section, we will learn more about their usage and different methods of passing the Vault password.

In the following exercise, we will develop Ansible content to create users in Linux, with their passwords retrieved from an Ansible Vault file:

  1. Create a Chapter-13/vars/users.yaml Ansible Vault file as follows and enter the Vault password:
    [ansible@ansible Chapter-13]$ ansible-vault create vars/users.yaml 

Remember the password, as we need this information when executing the playbook.

  1. Add content to the variable files as follows:

Figure 13.24 – User details inside an Ansible Vault file

Save the file and exit the editor. The userlist variable contains details of multiple users and their passwords.

  1. Verify the file content, as shown in Figure 13.25:
...

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