Terraform: From Beginner to Master with Examples in AWS/

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Variables

Variables

This lesson will address Terraform variables and their uses.

We'll cover the following...

Terraform variables

A variable in Terraform is something that can be set at runtime. It allows you to vary what Terraform will do by passing in or using a dynamic value.

Our first Variable

Let’s dive into an example of how to use variables so we can learn how they work:

C++
provider "aws" {
    region = "us-east-2"
}
variable "bucket_name" {
    description = "the name of the bucket you wish to create"
}
resource "aws_s3_bucket" "bucket" {
    bucket = var.bucket_name
}

You declare a variable by using the keyword variable, and then specify the identifier for the variable in quotes. We are using "bucket_name" as the identifier. Inside the variable block, we add a description to describe to the user what ...