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Practical Ansible 2

Practical Ansible 2

By : Daniel Oh, Oh Se Young, James Freeman, Fabio Alessandro Locati
3.8 (5)
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Practical Ansible 2

Practical Ansible 2

3.8 (5)
By: Daniel Oh, Oh Se Young, James Freeman, Fabio Alessandro Locati

Overview of this book

Ansible enables you to automate software provisioning, configuration management, and application roll-outs, and can be used as a deployment and orchestration tool. While Ansible provides simple yet powerful features to automate multi-layer environments using agentless communication, it can also solve other critical IT challenges, such as ensuring continuous integration and continuous deployment (CI/CD) with zero downtime. In this book, you'll work with Ansible 2.9 and learn to solve complex issues quickly with the help of task-oriented scenarios. You'll start by installing and configuring Ansible on Linux and macOS to automate monotonous and repetitive IT tasks and get to grips with concepts such as playbooks, inventories, and network modules. As you progress, you'll gain insight into the YAML syntax and learn how to port between Ansible versions. In addition to this, you'll also understand how Ansible enables you to orchestrate multi-layer environments such as networks, containers, and the cloud. By the end of this Ansible book, you'll be well - versed in writing playbooks and other related Ansible code to overcome just about all of your IT challenges, from infrastructure-as-code provisioning to application deployments, and even handling the mundane day-to-day maintenance tasks that take up so much valuable time.
Table of Contents (18 chapters)
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1
Section 1: Learning the Fundamentals of Ansible
6
Section 2: Expanding the Capabilities of Ansible
11
Section 3: Using Ansible in an Enterprise

Installing AWX

Before we can further discuss AWX, it is best if you have it installed on your machine so that you can follow the explanation and immediately start to use AWX. The most convenient way of installing AWX is to follow these steps:

  1. First of all, we need to clone the AWX Git repository, which can be done by running the following command:
$ git clone https://github.com/ansible/awx.git
  1. Modify the installer/inventory file by setting sensible values for the passwords and secrets (such as pg_password, rabbitmq_password, admin_password, and secret_key).
  1. Now that we have downloaded the Ansible AWX code and installer, we can move into the installer folder and execute the installation by running the following code:
$ cd awx/installer
$ ansible-playbook -i inventory install.yml

The install.yml playbook performs the whole installation for us. It starts by checking the environment...

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