Gain insights into Ansible's core features like inventory, playbooks, and roles. Delve into writing playbooks, using Jinja2, and organize tasks for efficient, stable IT infrastructure management.

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Configuration management plays a pivotal role in maintaining a stable and organized IT infrastructure by enabling the systematic gathering of information from remote hosts, facilitating server provisioning, and streamlining application upgrades or deployments.

You will learn the core features of Ansible, such as inventory, variables, playbooks, roles, and handlers, which serve as the building blocks for configuration management. You will learn how to write playbooks that define and execute complex orchestration tasks with ease. Next, you’ll learn how to use roles to maintain consistency across configuration management projects and how to harness the power of Jinja2 to apply logic and control structures and generate configuration files dynamically.

After completing this course, you will be equipped with the necessary skills for customizing configurations, organizing automation tasks efficiently, and maintaining a desired state for your infrastructure.

Configuration Management Using Ansible

# Task

You need to come up with a `hosts` file (INI format) for an infrastructure project of a tech startup that needs to manage its IT infrastructure, with specific needs as listed below:

- A cluster of three database servers.
- A cluster of three load balancers.
- Two servers for managing caching services.
- Two servers for managing the messaging queue.
- Two web servers running Apache and one web server running NGINX.
- One server for monitoring and insight.
- One server for critical backups.

Based on these requirements, devise a suitable inventory for the project. 

> **Note**: Please include the relevant connection parameters for each host, like the `username` and the `password`. Also, assign the IP addresses in a sequential manner.

If you’re unsure how to do this, click the "Show Hint" button.

Practice how to write an inventory for an Ansible project.

Getting Started

What Is Configuration Management?

Basics of Ansible

Major Concepts in Ansible

Ansible Variables and Other Elements

Manage Configuration with Ansible

Wrap Up

Deploy a Web Application Using Ansible

Exercise: Writing an Inventory

Task