Book Image

Infrastructure as Code for Beginners

By : Russ McKendrick
4 (1)
Book Image

Infrastructure as Code for Beginners

4 (1)
By: Russ McKendrick

Overview of this book

The Infrastructure as Code (IaC) approach ensures consistent and repeatable deployment of cloud-based IaaS/PaaS services, saving you time while delivering impeccable results. Infrastructure as Code for Beginners is a practical implementation guide that helps you gain a clear understanding of the foundations of Infrastructure as Code and make informed decisions when implementing it. With this book, you’ll uncover essential IaC concepts, including planning, selecting, and implementing the right tools for your project. With step-by-step explanations and real-world examples, you'll gain a solid understanding of the benefits of IaC and the scope of application in your projects. You'll learn about the pros, cons, and best practices of different IaC tools such as Terraform and Ansible, and their use at different stages of the deployment process along with GitHub Actions. Using these tools, you'll be able to design, deploy, and secure your infrastructure on two major cloud platforms, Microsoft Azure and Amazon Web Services. In addition, you'll explore other IaC tools such as Pulumi, AWS CloudFormation, and Azure Bicep. By the end of this book, you’ll be well equipped to approach your IaC projects confidently.
Table of Contents (15 chapters)
1
Part 1: The Foundations – An Introduction to Infrastructure as Code
5
Part 2: Getting Hands-On with the Deployment
9
Part 3: CI/CD and Best Practices

Terraform – writing the code and deploying our infrastructure

Now that we know which services we are going to deploy, we can make a start on our Terraform deployment. To make things more manageable, I will split our code into several files; they will be named the following:

  • 001-setup.tf
  • 002-resource-group.tf
  • 003-networking.tf
  • 004-storage.tf
  • 005-database.tf
  • 006-vm-admin.tf
  • 007-vmss-web.tf
  • 098-outputs.tf
  • 099-variables.tf
  • vm-cloud-init-admin.yml.tftpl
  • vmss-cloud-init-web.tftpl

I have done this to more logically group all the functions around a certain part of the deployment code together; for example, all of the networking elements can be found in the 003-networking.tf file and the variables used in the 099-variables.tf file.

Information

As mentioned at the start of this chapter, what follows is not 100% of the code contained within each of the files, and I will be referencing blocks out of the variables file in line...