Prerequisites:<\/h2>\n\n\n\n
Before you begin, ensure the following requirements are met:<\/p>\n\n\n\n
- \n
- An active AWS account<\/strong><\/li>\n\n\n\n
- An IAM user<\/strong> with:
Programmatic access
EC2, VPC, and Elastic IP permissions<\/li>\n\n\n\n- Ubuntu Linux<\/li>\n\n\n\n
- Basic knowledge of:
Linux commands
AWS EC2 concepts
SSH access
<\/li>\n<\/ul>\n\n\n\nInstall AWS CLI (Ubuntu)<\/h2>\n\n\n\n
Terraform uses AWS credentials configured via the AWS CLI to authenticate with AWS.<\/p>\n\n\n\n
Step 1: Update System Packages<\/h2>\n\n\n\n
This step updates the local package index and installs required utilities (
curl<\/code> andunzip<\/code>) that are needed to download and extract the AWS CLI installer.<\/p>\n\n\n\napt update\napt install -y curl unzip<\/code><\/pre>\n\n\n\nStep 2: Download AWS CLI v2<\/h2>\n\n\n\n
Download the official AWS CLI v2 installer package from AWS to the local system.<\/p>\n\n\n\n
curl \"https:\/\/awscli.amazonaws.com\/awscli-exe-linux-x86_64.zip\" -o awscliv2.zip<\/code><\/pre>\n\n\n\nStep 3: Install AWS CLI<\/h2>\n\n\n\n
Extract the downloaded package and run the installation script to install AWS CLI v2 system-wide.<\/p>\n\n\n\n
unzip awscliv2.zip\n.\/aws\/install<\/code><\/pre>\n\n\n\nStep 4: Verify Installation<\/h2>\n\n\n\n
Confirm that AWS CLI is installed successfully and check the installed version.<\/p>\n\n\n\n
aws --version<\/code><\/pre>\n\n\n\nConfigure AWS Credentials<\/h2>\n\n\n\n
Run the following command and provide your IAM credentials:<\/p>\n\n\n\n
aws configure<\/code><\/pre>\n\n\n\nEnter:<\/p>\n\n\n\n
- \n
- AWS Access Key ID<\/strong><\/li>\n\n\n\n
- AWS Secret Access Key<\/strong><\/li>\n\n\n\n
- Default region name:<\/strong>
ap-south-1<\/code><\/li>\n\n\n\n- Default output format:<\/strong>json<\/li>\n<\/ul>\n\n\n\n
Install Terraform<\/h2>\n\n\n\n
Step 1: Add HashiCorp Repository<\/h2>\n\n\n\n
Add HashiCorp\u2019s official GPG key and repository so Terraform can be installed and updated securely using
apt<\/code>.<\/p>\n\n\n\nwget -O - https:\/\/apt.releases.hashicorp.com\/gpg | sudo gpg --dearmor -o \/usr\/share\/keyrings\/hashicorp-archive-keyring.gpg\necho \"deb [arch=$(dpkg --print-architecture) signed-by=\/usr\/share\/keyrings\/hashicorp-archive-keyring.gpg] https:\/\/apt.releases.hashicorp.com $(grep -oP '(?<=UBUNTU_CODENAME=).*' \/etc\/os-release || lsb_release -cs) main\" | sudo tee \/etc\/apt\/sources.list.d\/hashicorp.list\nsudo apt update && sudo apt install terraform<\/code><\/pre>\n\n\n\nStep 2: Install Terraform<\/h2>\n\n\n\n
Update the package list and install Terraform from the official HashiCorp repository.<\/p>\n\n\n\n
apt update\napt install terraform -y<\/code><\/pre>\n\n\n\nStep 3: Verify Installation<\/h2>\n\n\n\n
Verify that Terraform is installed correctly by checking its version.<\/p>\n\n\n\n
terraform -v<\/code><\/pre>\n\n\n\nTerraform Project Structure<\/h2>\n\n\n\n
Create a dedicated project directory:<\/p>\n\n\n\n
mkdir terraform-ec2 && cd terraform-ec2<\/code><\/pre>\n\n\n\nProject structure:<\/p>\n\n\n\n
terraform-ec2\/
\u251c\u2500\u2500 provider.tf
\u251c\u2500\u2500 variables.tf
\u251c\u2500\u2500 main.tf
\u251c\u2500\u2500 outputs.tf<\/code><\/pre>\n\n\n\nTerraform Configuration Files<\/h2>\n\n\n\n
provider.tf<\/strong><\/p>\n\n\n\n
provider “aws” {
region = “ap-south-1”
}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nvariables.tf<\/strong><\/p>\n\n\n\n
variable “ami_id” {
default = “ami-0f5ee92e2d63afc18”
}
variable “instance_type” {
default = “t2.micro”
}
variable “key_name” {
default = “my-keypair”
}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nmain.tf<\/strong><\/p>\n\n\n\n
resource “aws_security_group” “ec2_sg” {
name = “terraform-sg”
ingress {
from_port = 22
to_port = 22
protocol = “tcp”
cidr_blocks = [“0.0.0.0\/0”]
}
ingress {
from_port = 80
to_port = 80
protocol = “tcp”
cidr_blocks = [“0.0.0.0\/0”]
}
egress {
from_port = 0
to_port = 0
protocol = “-1”
cidr_blocks = [“0.0.0.0\/0”]
}
}
resource “aws_instance” “ec2” {
ami = var.ami_id
instance_type = var.instance_type
key_name = var.key_name
vpc_security_group_ids = [aws_security_group.ec2_sg.id]
tags = {
Name = “Terraform-EC2”
}
}
resource “aws_eip” “eip” {
instance = aws_instance.ec2.id
}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\noutputs.tf<\/strong><\/p>\n\n\n\n
output “public_ip” {
value = aws_eip.eip.public_ip
}<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nDeploy the Infrastructure<\/h2>\n\n\n\n
Initialize Terraform:<\/p>\n\n\n\n
terraform init<\/code><\/pre>\n\n\n\n![\"\"](\"https:\/\/pheonixsolutions.com\/blog\/wp-content\/uploads\/2026\/01\/image.png\")
<\/a><\/figure>\n\n\n\nPreview the execution plan:<\/p>\n\n\n\n
terraform plan<\/code><\/pre>\n\n\n\nApply the configuration:<\/p>\n\n\n\n
terraform apply<\/code><\/pre>\n\n\n\n![\"\"](\"https:\/\/pheonixsolutions.com\/blog\/wp-content\/uploads\/2026\/01\/image-1.png\")
<\/a><\/figure>\n\n\n\nType yes<\/strong> when prompted.<\/p>\n\n\n\n
Verification<\/h2>\n\n\n\n
- AWS Secret Access Key<\/strong><\/li>\n\n\n\n
- An IAM user<\/strong> with: