Terraform articles!

Here’s a list of all the Terraform-related articles I’ve published on my blog. I keep this page updated with any new articles I publish on Terraform so feel free to bookmark it, hope they help you out and enjoy!

In order of date published (most recent first).

Current number of articles: 80!

Using Azure for Infrastructure as Code

Overview & Tools

jackwesleyroper.medium.com

How to Use Open Policy Agent (OPA) with Terraform

In this article we will delve into the Open Policy Agent (OPA), first explaining what ‘policy as code’ is, and how to…

jackwesleyroper.medium.com

How to Use Terraform Try & Can Functions

With practical examples!

jackwesleyroper.medium.com

Terraform File Paths — Path Module, Root and Cwd

In this short article, we will explain what module, root and CWD Terraform file paths are, and how you can reference…

itnext.io

How to Generate Images with Terraform Graph Command

In this article, we will delve into the Terraform Graph command, explaining what Terraform graphs are and how they are…

jackwesleyroper.medium.com

How to Use Terraform Toset Function

In this short article, we will take a look at the type conversion function in Terraform, toset() , explaining what it…

blog.devops.dev

Terraform Coalesce Function — How to Use it & Examples

In this short article, we will take a look at the Terraform collection function, coalesce. We will explain what it is…

blog.devops.dev

Terraform Jsonencode Function — Definition & Examples

In this article, we will look at the jsonencode function in Terraform, explaining what it is, when, and why you might…

blog.devops.dev

Terraform State Rm: How to Remove a Resource From State File

In this article, we will take a look at the terraform state rm command, explaining what it is and how to use it…

itnext.io

How to Use Optional Arguments in Terraform Variables

In this short article, we will take a look at Terraform variables and the optional arguments they use. We will explain…

blog.devops.dev

Terraform Resources Overview

In this post, we will give an overview of ‘resources’ in Terraform, showing the syntax, types, arguments you can use…

blog.devops.dev

How to Use Terraform Flatten Function

With examples!

medium.com

What is Terrascan?

Features, Use Cases & Custom Policies

blog.devops.dev

How to Deploy AWS Autoscaling Groups with Terraform

In this article, we will take a look into how to manage and deploy autoscaling groups in Amazon Web Services (AWS)…

medium.com

Terraform Merge

How to use the Terraform Merge Function with examples!

itnext.io

Terraform Map

What is a Terraform Map & How to Use it?!

itnext.io

Terragrunt Tutorial

Getting Started & Examples!

itnext.io

How to Create & Use Gitignore File With Terraform

In this short article, we will take a look at gitignore, explaining what it is and why you might want to use it. We…

medium.com

How To Create IAM Role Using Terraform

Add an IAM role to an EC2 instance using Terraform in 10 easy steps!

itnext.io

How to target resources in Terraform

In this short article, we will look at how to target specific resources in Terraform. We will explain the use of the…

medium.com

What is TFLint?

In this article we will look into ‘linting’, explaining what it is and why you should ‘lint’, before looking at the…

faun.pub

What is Checkov?

Checkov 101!

itnext.io

Using Terraform Helm Provider to Deploy Applications

In this article, we will use Terraform to show how to deploy applications using the Helm provider to provision…

itnext.io

Managing Datadog with Terraform

In this article, we will take a look at the cloud-based monitoring and analytics platform, Datadog, and how to manage…

faun.pub

Create an EC2 instance on AWS with Terraform

In this article, we will show how to create an EC2 instance on the Amazon Web Services (AWS) cloud platform using…

itnext.io

How to Test Terraform Code — Strategies and Tools

A deeper dive!

itnext.io

Terraform Environment Variables Introduction

In this article, we will look at what Terraform environment variables are, when and why you would use them, and how to…

medium.com

Terraform for loop

In this article, we will look at how we can handle a ‘for loop’ in Terraform. Meta-arguments such as count and…

faun.pub

Manage and deploy Kubernetes Resources with Terraform

Ditch the YAML and use the Terraform Kubernetes Provider!

faun.pub

Manage Multiple Terraform Versions With tfenv

In this article, we will explore the popular Terraform version manager tfenv, with practical examples of how to install…

itnext.io

Terraform console command

Ever needed a quick and easy way to experiment with Terraform functions and expressions? In this short article, we will…

medium.com

Using Terraform to set up and deploy Docker containers

This article will explain how to use Terraform to set up and deploy Docker containers. We will be using Docker for…

itnext.io

How to Use the If / Else Statement in Terraform — Examples

In this short article, we will take a look at the Terraform if statement (hint, it doesn’t exist) and look at a few…

medium.com

Formatting Terraform Code With the Terraform fmt Command

In this post, we will look at the terraform fmt command, first explaining what it does, look at the operation it…

medium.com

How to Use the Terraform AWS Provider

How to authenticate Terraform to AWS!

faun.pub

Managing Terraform state

Best Practices & Examples

itnext.io

The Lifecycle of a Terraform Resource — Lifecycle Meta-Argument

In this article, we will take a look at the various stages a Terraform resource goes through during its lifetime. We…

faun.pub

Terraform Providers

Providers explained with useful examples!

itnext.io

How to use the Terraform join and split functions

The Hashicorp Configuration Language (HCL) that Terraform employs utilizes a number of beneficial built-in functions…

medium.com

Using the Terraform Apply Command

In this post, I will explain what the terraform apply command is used for, what it does, the available options, and…

itnext.io

Terraform Cheat Sheet

Command reference with useful examples!

itnext.io

Terraform local values

How to use Terraform locals with real-world use cases

medium.com

Infrastructure as Code

An ultimate beginner's guide to IaC!

faun.pub

Terraform Init — Command Overview with Quick Usage Examples

In this post, I will explain what the terraform initcommand is used for, what it does, and when to run it. I will…

faun.pub

Creating Terraform for an AKS Cluster with Opta

Automatically generate Terraform code!

blog.runx.dev

Format and Mount a VM disk using Terraform in Azure

When provisioning a Windows VM in Azure that may have data disks attached, there will be an extra step needed to…

faun.pub

Generate Terraform code automatically for your Azure project using Nubesgen!

Nubesgen is an awesome open-source project that enables you to generate Infrastructure-as-code configuration files for…

faun.pub

Terraform Count and For_Each Meta-Argument Overview

In this article, I will explain the Terraform count and for_eachmeta-arguments. I will provide examples of how to use…

medium.com

Enable Azure SQL Server vulnerability assessment using Terraform

Avoiding timeout error ”The gateway did not receive a response from ‘Microsoft.Sql’ within the specified time period.”

faun.pub

The BEST way to structure your Terraform projects!

Dynamic Terraform deployments across multiple environments

faun.pub

Terraform null provider and null_resource explained

What the null?

faun.pub

Terraform ‘for_each’ meta-argument

Streamline your terraform code!

faun.pub

Terraform variable validation

In this post, I’ll dive into variable validation in Terraform, why you should do it, and show lots of useful examples!

medium.com

Terraform on Azure— Getting started with a hands-on workshop!

This tutorial is designed to get you up and running with Terraform! You will need a Windows machine and an Azure…

medium.com

Deploying to multiple Azure subscriptions using Terraform

When using Terraform to deploy to Azure, it is likely you will need to deploy resources, or access existing resources…

medium.com

Access secrets in an existing Azure Key Vault with Terraform

Sure, you can create a new key vault using Terraform. In the real world, you will likely already have an existing Key…

faun.pub

Terraform Conditional logic and dynamic configuration blocks

Introduction

medium.com

Managed Identities in Azure with Terraform

In this article, I’ll explain the concepts around Managed Identities in Azure, the different types of managed…

faun.pub

Fixing Terraform ‘Error acquiring state lock’ in Azure

When Terraform runs, it locks the state file so it cannot be modified by other processes.

towardsdev.com

Building VM images in Azure using Packer and Deploying with Terraform, in an Azure DevOps pipeline!

Deploying a VM in Azure is all well and good, but what about the base configuration of the VM itself? That's where…

medium.com

Hook your Azure VM into Log Analytics with the MMA agent VM extension… using Terraform!

To connect your Windows VMs to a log analytics workspace in Azure, the Microsoft monitoring agent (MMA) needs to be…

faun.pub

Fixing the Terraform Console Output Encoding in Azure DevOps

When using Terraform in an Azure DevOps release pipeline, you may notice that the encoding on the console output has…

jackwesleyroper.medium.com

Using Terraform to configure SQL Server on an Azure VM (IaaS)

In this article, I will run through an example of how to create a SQL Server VM in Azure using Terraform, utilizing the…

faun.pub

Terraform Best Practices — Testing your code

When starting out with Terraform it’s hard to know what is considered ‘best practice’ in a number of areas.

medium.com

Terraform Best Practices — Limit resources in your project

When starting out with Terraform it’s hard to know what is considered ‘best practice’ in a number of areas.

medium.com

Terraform Best Practices — Using variables

When starting out with Terraform it’s hard to know what is considered ‘best practice’ in a number of areas.

medium.com

Terraform Best Practices — Hold your state file remotely, not on your local machine

When starting out with Terraform it’s hard to know what is considered ‘best practice’ in a number of areas.

faun.pub

Terraform Best Practices — Use a consistent format and style

When starting out with Terraform it’s hard to know what is considered ‘best practice’ in a number of areas.

medium.com

Terraform best practices — using a consistent naming convention

When starting out with Terraform it’s hard to know what is considered ‘best practice’ in a number of areas.

medium.com

Terraform best practices — using modules

When starting out with Terraform it’s hard to know what is considered ‘best practice’ in a number of areas.

medium.com

Terraform best practices — how to structure your Terraform projects.

When starting out with Terraform it’s hard to know what is considered ‘best practice’ in a number of areas.

medium.com

Creating a CI/CD pipeline to deploy Terraform on Azure in GitLab

My previous posts have covered how to setup GitLab runners, which are the are processes that pick up and execute jobs…

faun.pub

Automating the creation of an Ansible hosts file from Terraform on Azure

If you have VMs, you need to configure them. Ansible is a configuration management tool, enabling automation at scale…

jackwesleyroper.medium.com

Creating a Windows VM in Azure using Terraform — which way is best?

There are 3 basic ways to create a VM in Azure using Terraform code! But which is best? This can be confusing for…

faun.pub

Terraform “SkuNotAvailable” Message

When trying to create a VM in Azure using Terraform I was receiving this error message:

jackwesleyroper.medium.com

Understanding Azure Virtual Network Peering — Configuring in Terraform!

Recently I was involved in a project that required multiple network peerings to be setup between multiple Azure VNETS…

faun.pub

The ‘best’ way to format and structure Terraform code?

Over the past year I’ve been delving deeper into Terraform, using it in anger to deploy resources on Azure and AWS…

jackwesleyroper.medium.com

Converting information from a spreadsheet into Terraform formatted variable files…part 2!

In part one of this post, I discussed how a simple CSV file containing a list of subnets could be read into a…

jackwesleyroper.medium.com

Converting information from a spreadsheet into Terraform formatted variable files…part 1!

Recently, I noticed a fellow tech guy in the Welsh Azure user group on LinkedIn had asked a question around how…

faun.pub

Tagging in Terraform on AWS — Merging maps and inline tags!

How to use a terraform map of tags and combine it with an inline tag?

jackwesleyroper.medium.com

Finally….a little bit about me…

I was pleased to first pass the Terraform exam on August 18th, 2020, and rectify passing the 003 exam on June 29, 2023. I also hold the Terraform: Certified HashiCorp Implementation Partner (CHIP) badge which I achieved on May 26th 2022.

If you are interested in connecting with me please do so through LinkedIn.

HashiCorp Certified: Terraform Associate (003) was issued by HashiCorp to Jack Roper.

Earners of the HashiCorp Certified: Terraform Associate certification know the basic concepts, skills, and use cases…

www.credly.com

Terraform: Certified HashiCorp Implementation Partner (CHIP) was issued by HashiCorp Partner…

HashiCorp partner practitioners who achieve Terraform CHIP certification have proven that they understand how to deploy…

www.credly.com

**Terraform: Certified HashiCorp Implementation Partner (CHIP) Badge**

If you are interested in Kubernetes (K8S) check out my index of all my published articles here!