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HashiCorp Infrastructure Automation Certification Guide
HashiCorp Infrastructure Automation Certification Guide

HashiCorp Infrastructure Automation Certification Guide: Pass the Terraform Associate exam and manage IaC to scale across AWS, Azure, and Google Cloud

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HashiCorp Infrastructure Automation Certification Guide

Chapter 1: Getting to Know IaC

In this chapter, we are going to discuss what Infrastructure as Code (IaC) is in detail. We will be discussing the benefits of using IaC. Furthermore, we will start describing the basics of Terraform, and then undertake a comparison of Terraform with other available IaC options, including AWS CloudFormation, Azure Resource Manager (ARM), and Google Cloud Deployment Manager. Moving on, we will then discuss Terraform architecture.

Throughout this chapter, we will be focusing on Terraform for major cloud providers, including GCP, AWS, and Azure. The whole chapter will help you in terms of achieving a fair understanding of Terraform (IaC) and how you can overcome the old lego system of executing manual changes to your environment. This will help you get an idea of how you can start using Terraform for infrastructure automation in your organization.

The following topics will be covered in this chapter:

  • Introduction to IaC
  • Advantages of IaC
  • Introduction to Terraform
  • A comparison with other IaC
  • An understanding of Terraform architecture

Technical requirements

To follow along with this chapter, you need to have a basic knowledge of different IaC options, including ARM templates and AWS CloudFormation, while a basic knowledge of major cloud providers, such as GCP, AWS, and Azure, will be beneficial.

Introduction to IaC

Before learning about Terraform, let's try to understand what it basically means for us and how it helps make users' lives easier in the IT industry. The first thing that always comes to consumers' minds is that when they need an IT infrastructure, for example, if they want a virtual machine, they need to raise a ticket on some ticket portal such as ServiceNow, and someone from the backend would log in to that ticketing portal and take that ticket from the queue and deploy the virtual machine for the consumer, either in VMware or a HyperV environment through the management portal using some click jobs. That is the traditional approach for infrastructure deployment, which is somewhat fine if they need to manage infrastructure in their private data center and there is very little possibility of performing scaling of those deployed resources, which means once it gets provisioned, after that no one is requesting further changes to the created resource.

In all these cases, it is fine if they easily go ahead and perform all the operations manually but what about if they need to deploy a very large infrastructure consisting of more repeatable work in the cloud? Then it would be a really tedious job for the administrator to provision those resources manually and also it is a very time-consuming job for them. So, to overcome this challenging situation, most cloud vendors have come up with an approach of IaC, which is mostly an API-driven approach. Most cloud vendors have published APIs for all their resources. Using that API, we can easily get the resource deployed in the cloud.

Nowadays, as most customers are moving toward the cloud, and as we all know, cloud platforms provide us with more elasticity and scalability in terms of their infrastructure, this means you can easily utilize the resources and pay for what you use; you don't need to pay anything extra. Just think down the line of an administrator needing to perform the scaling up and down of resources and how difficult it would be for them. Let's suppose there are 1,000 resources that need to be scaled up during the day and scaled down at night.

In this case, consumers need to raise 1,000 tickets for performing the scale-up and again 1,000 more tickets for scaling down, which means by the end of the day, the system administrator who is managing the infrastructure will get flooded with so many requests and it would be really impossible for them to handle this. So, here we have something called IaC, which is a way of deploying or managing the infrastructure in an automated way. All the resources that need to be managed will be defined in code format and we can keep that code in any source control repository, such as GitHub or Bitbucket. Later, we can apply a DevOps approach to manage our infrastructure easily. There are many advantages of using IaC; we are going to discuss a few of them.

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Key benefits

  • Perform complex enterprise-grade infrastructure deployments using Terraform v1.0, the latest version of Terraform
  • Learn to scale your infrastructure without introducing added deployment complexities
  • Understand how to overcome infrastructure deployment challenges

Description

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.

Who is this book for?

This book is for experienced cloud engineers, DevOps engineers, system administrators, and solution architects interested in developing industry-grade skills with Terraform. You will also find this book useful if you want to pass the HashiCorp Certified: Terraform Associate exam. Basic command-line skills and prior knowledge of cloud environments and their services are required before getting started with this book.

What you will learn

  • Effectively maintain the life cycle of your infrastructure using Terraform 1.0
  • Reuse Terraform code to provision any cloud infrastructure
  • Write Terraform modules on multiple cloud providers
  • Use Terraform workflows with the Azure DevOps pipeline
  • Write Terraform configuration files for AWS, Azure, and Google Cloud
  • Discover ways to securely store Terraform state files
  • Understand Policy as Code using Terraform Sentinel
  • Gain an overview of Terraform Cloud and Terraform Enterprise
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Table of Contents

16 Chapters
Section 1: The Basics Chevron down icon Chevron up icon
Chapter 1: Getting to Know IaC Chevron down icon Chevron up icon
Chapter 2: Terraform Installation Guide Chevron down icon Chevron up icon
Section 2: Core Concepts Chevron down icon Chevron up icon
Chapter 3: Getting Started with Terraform Chevron down icon Chevron up icon
Chapter 4: Deep Dive into Terraform Chevron down icon Chevron up icon
Chapter 5: Terraform CLI Chevron down icon Chevron up icon
Chapter 6: Terraform Workflows Chevron down icon Chevron up icon
Chapter 7: Terraform Modules Chevron down icon Chevron up icon
Section 3: Managing Infrastructure with Terraform Chevron down icon Chevron up icon
Chapter 8: Terraform Configuration Files Chevron down icon Chevron up icon
Chapter 9: Understanding Terraform Stacks Chevron down icon Chevron up icon
Chapter 10: Terraform Cloud and Terraform Enterprise Chevron down icon Chevron up icon
Chapter 11: Terraform Glossary Chevron down icon Chevron up icon
Assessments Chevron down icon Chevron up icon
Other Books You May Enjoy Chevron down icon Chevron up icon

Customer reviews

Top Reviews
Rating distribution
Full star icon Full star icon Full star icon Full star icon Half star icon 4.1
(11 Ratings)
5 star 54.5%
4 star 18.2%
3 star 18.2%
2 star 0%
1 star 9.1%
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Sujata Goyal Aug 16, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Clear, well written and with lots of easy to follow examples. I love this book.If you are looking to move your first steps in Terraform, buy this.You'll end with a deep knowledge of the topic, plus great tips about DevOps and best practices in general.
Amazon Verified review Amazon
Jodex Saint-Vil Aug 13, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Amazing book. Very informative. Though at work, i used ARM templates to provision Azure infrascture, this deepens my knowledge even more when it comes to cloud infrastructure provisioning. Fantastic work lads!!!I generally speaking do not leave book reviews but i simply had to this time. Again great work and will 1000% recommend reading (matter of fact i intend on reading it again in the near future, perhaps even purchase it who knows - for info, i came across this book from packtpub)
Amazon Verified review Amazon
Ashish Sep 10, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Simplest way to learn Terraform with Azure, AWS & GCP.Contents of this book, clarity and diagrams are so easy to learn and I strongly recommend this book those who are keen to learn Terraform.
Amazon Verified review Amazon
katrina Aug 23, 2021
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The book assumes that you are a beginner. It starts with technical requirements, has a chapter on installation on Windows and Mac, then devotes 5 more chapters to core concepts. Once you've digested all that, you will learn how to use the product to manage infrastructure. If you're looking to build infrastructure as code, get a copy.
Amazon Verified review Amazon
R. L. Robinson Mar 21, 2022
Full star icon Full star icon Full star icon Full star icon Full star icon 5
The best part of this book is it covers the main concepts and the Terraform work flow in great detail. Even more so, that it covers the popular cloud platforms and the similarities & differences between them (AWS, Google Cloud, and Azure).
Amazon Verified review Amazon
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