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

Understanding the Terraform CLI commands

The Terraform CLI supports many commands, and in this section we will try to cover some of the main commands and their respective outputs. We will discuss the Terraform workflows in our upcoming chapter, Chapter 6, Terraform Workflows, but we will now discuss some of the basic the Terraform CLI commands, as follows:

  • terraform console: You can run this command on the CLI to open a Terraform console, where you can test or get the output of the code of certain Terraform functions. The following example shows how you can use this command:
    $ terraform console
    > max(5,10,-5)
    10
    >
  • terraform fmt: You can run this command to rewrite configuration files to a canonical format and style. This command performs some sort of adjustment so that your configuration code is in a readable format, and even helps you make some changes to follow Terraform's language-style conventions. To know more about Terraform language-style conventions,...