Book Image

Terraform Cookbook

By : Mikael Krief
Book Image

Terraform Cookbook

By: Mikael Krief

Overview of this book

HashiCorp Configuration Language (HCL) has changed how we define and provision a data center infrastructure with the launch of Terraform—one of the most popular and powerful products for building Infrastructure as Code. This practical guide will show you how to leverage HashiCorp's Terraform tool to manage a complex infrastructure with ease. Starting with recipes for setting up the environment, this book will gradually guide you in configuring, provisioning, collaborating, and building a multi-environment architecture. Unlike other books, you’ll also be able to explore recipes with real-world examples to provision your Azure infrastructure with Terraform. Once you’ve covered topics such as Azure Template, Azure CLI, Terraform configuration, and Terragrunt, you’ll delve into manual and automated testing with Terraform configurations. The next set of chapters will show you how to manage a balanced and efficient infrastructure and create reusable infrastructure with Terraform modules. Finally, you’ll explore the latest DevOps trends such as continuous integration and continuous delivery (CI/CD) and zero-downtime deployments. By the end of this book, you’ll have developed the skills you need to get the most value out of Terraform and manage your infrastructure effectively.
Table of Contents (10 chapters)

Using modules from the public registry

In the previous recipe, we studied how to create a module and how to write a Terraform configuration that uses this module locally.

To facilitate the development of Terraform configuration, HashiCorp has set up a public Terraform module registry.

This registry actually solves several problems, such as the following:

  • Discoverability with search and filter
  • The quality provided via a partner verification process
  • Clear and efficient versioning strategy, which is otherwise impossible to solve universally across other existing module sources (HTTP, S3, and Git)

These public modules published in this registry are developed by cloud providers, publishers, communities, or even individual users who wish to share their modules publicly. In this recipe, we will see how to access this registry and how to use a module that has been published in this public registry.

Getting ready

In this recipe, we will write a Terraform code from scratch that does not require...