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

How to approach the deployment of our infrastructure

First, as we have already mentioned, WordPress runs on top of PHP and MySQL; to be more explicit, it has the following requirements:

  • A piece of web server software such as Apache or NGINX
  • PHP version 7.4 or greater
  • MySQL version 5.7 or greater, or MariaDB version 10.3 or greater

Information

Please note that, at the time of writing, PHP 8 only has beta support in WordPress version 6.1; because of this, we will be installing PHP 7 in our example deployment.

Deployment considerations

So, we know from our requirements that we are going to need a web server and PHP installed on something, while all the cloud services we are going to be looking at in the next two chapters offer some sort of application hosting as a service. For our project, we are going to use virtual machine instances running Ubuntu.

Rather than launching a single host, which would be a single point of failure, let’s look at launching...