Terraform – Infrastructure as Code Build – Brian Galeano

Terraform

Terraform - Infrastructure as Code Build

Unleashing the Power of Terraform: A Simple Build That Saved Me Hours

Hello all! I want to share with you a powerful example of how Terraform, the Infrastructure as Code (IaC) tool, can save you an incredible amount of time and effort in managing your AWS resources. By writing a simple script, I was able to set up a VPC, a subnet, and an EC2 instance in AWS without manually navigating through the AWS Management Console.

Step 1: Define Required Providers

First things first, I specified the required provider for my AWS resources using the following block:

terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = "~> 2.0"
}
}
}

This block ensures that Terraform knows which provider to utilize, and it's using the correct version.

Step 2: Set Up the AWS Provider

Next, I configured the AWS provider, specifying the region where I wanted to build my resources:

provider "aws" {
region = "us-east-1"
}

Step 3: Create a VPC

With the provider in place, I then defined a Virtual Private Cloud (VPC):

resource "aws_vpc" "my_vpc" {
cidr_block = "10.0.0.0/16"
}

Step 4: Create a Subnet

Within the VPC, I set up a subnet:

resource "aws_subnet" "my_subnet" {
vpc_id = aws_vpc.my_vpc.id
cidr_block = "10.0.1.0/24"
}

Step 5: Deploy an EC2 Instance

Finally, I deployed an EC2 instance within the subnet:

resource "aws_instance" "name" {
ami = "ami-0f34c5ae932e6f0e4"
instance_type = "t2.micro"
subnet_id = aws_subnet.my_subnet.id

tags = { Name = "my_instance" } }

Result: Time Saved and a Clean, Repeatable Process

By utilizing this simple Terraform script, I managed to save hours of manual configuration time. Here's how it benefitted me:

Speed: I had the entire infrastructure up and running in minutes, just by running terraform apply.
Repeatability: If I need to create a similar infrastructure elsewhere, I can reuse the code, ensuring consistency.
Maintainability: Managing and modifying the infrastructure becomes a matter of changing a few lines of code rather than a long series of manual adjustments.

In conclusion, Terraform proved to be an invaluable tool for quickly and efficiently deploying AWS resources. If you haven't already, give it a try and see how it can save you time and effort! Feel free to leave your thoughts and questions in the comments below. Happy building!