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)

Generating the graph dependencies

One of the interesting features of Terraform is the ability to generate a dependency graph of the resource dependencies mentioned in the Terraform configuration.

In this recipe, we will see how to generate and visualize this dependency graph.

Getting ready

For this recipe, we need to use a third-party drawing generation tool called Graphviz, which is available for download at You will need to download and install the package corresponding to your operating system.

Moreover, as an example, we will take the Terraform configuration available at

How to do it…

To generate the graph dependencies, perform the following steps:

  1. Execute the terraform graph command:
terraform graph | dot -Tsvg > graph.svg
  1. Open the file explorer and navigate inside the folder that contains the Terraform configuration and open the file called graph...