How Terraform Works: A Visual Intro

Understand Terraform through illustrations

As a way to refresh my terraform knowledge, I keep a stash of some diagrams.

In any topic, I always find the exercise of creating illustrations very helpful for learning.
They also tend to be helpful when I have to explain some terraform concepts to my peers.

Terraform’s main features

How it works

The core workflow

The terraform basic CLI | Running terraform

You usually run terrafom using the CLI in a directory that contains . tf files .

terraform init

terraform plan

terraform apply

The HCL Syntax

A bit of the language hierarchy

Block types

Specialized blocks

The Terraform block

The provider block

Variables block

Variable type constraints and validation nested block

Variable definition

Check out the follow-up article: Terraform Modules Illustrated

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