Book Image

HashiCorp Infrastructure Automation Certification Guide

By : Ravi Mishra
Book Image

HashiCorp Infrastructure Automation Certification Guide

By: Ravi Mishra

Overview of this book

Terraform is a highly sought-after technology for orchestrating infrastructure provisioning. This book is a complete reference guide to enhancing your infrastructure automation skills, offering up-to-date coverage of the HashiCorp infrastructure automation certification exam. This book is written in a clear and practical way with self-assessment questions and mock exams that will help you from a HashiCorp infrastructure automation certification exam perspective. This book covers end-to-end activities with Terraform, such as installation, writing its configuration file, Terraform modules, backend configurations, data sources, and infrastructure provisioning. You'll also get to grips with complex enterprise infrastructures and discover how to create thousands of resources with a single click. As you advance, you'll get a clear understanding of maintaining infrastructure as code (IaC) in Repo/GitHub, along with learning how to create, modify, and remove infrastructure resources as and when needed. Finally, you'll learn about Terraform Cloud and Enterprise and their enhanced features. By the end of this book, you'll have a handy, up-to-date desktop reference guide along with everything you need to pass the HashiCorp Certified: Terraform Associate exam with confidence.
Table of Contents (17 chapters)
1
Section 1: The Basics
4
Section 2: Core Concepts
10
Section 3: Managing Infrastructure with Terraform
14
Chapter 11: Terraform Glossary

Chapter 4: Deep Dive into Terraform

In the previous chapter, we discussed Terraform providers, which mainly help Terraform to understand which API to use for deployment. We also covered Terraform resources, which help you to consume the provider's service API to provision the respective services. Moving on, we discussed taking input from users by defining Terraform variables, which make Terraform code reusable. We also saw how you can validate the output of the resources that you have provisioned or that already exist using Terraform output, and finally, we discussed how you can use already-existing resources by calling the Terraform data block in your configuration code.

In this chapter, we are going to discuss the Terraform backend, which helps you to store your Terraform tfstate file. Furthermore, we will be covering Terraform provisioners, which help you to execute script within the Terraform configuration code. Later, we will be discussing different Terraform loops (iterations...