🚀 Project: Deploy a Red Hat EC2 Instance on AWS Using Terraform

Goal: Use Terraform to provision an EC2 instance running Red Hat Linux with secure SSH access, proper tagging, and reusable configuration.

🧱 Project Structure

terraform-ec2-redhat/
│
├── main.tf          # Main infrastructure definition
├── variables.tf     # Input variables for flexibility
├── outputs.tf       # Outputs like public IP
└── README.md        # (for GitHub/Hashnod

✅ Step 1: Prerequisites

• AWS account

• AWS CLI configured (aws configure)

• Terraform installed (terraform -v)

• Create an EC2 key pair in AWS Console
  → Name: master-slave (or any name)

📄 main.tf

provider "aws" {
  region = var.aws_region
}

resource "aws_instance" "redhat_master" {
  ami           = var.ami_id / direct ami_id
  instance_type = var.instance_type / direct instance_type
  key_name      = var.key_name / direct key_name

  tags = {
    Name        = "RedHatMaster"
    Environment = "Dev"
    Owner       = "Harshitha"
  }
}

if required you can use variables.tf

📄 variables.tf

variable "aws_region" {
  description = "AWS region to deploy the instance"
  default     = "ap-south-1"
}

variable "ami_id" {
  description = "Red Hat AMI ID for the region"
  default     = "ami-0"  # Example: Red Hat in ap-south-1
}

variable "instance_type" {
  description = "EC2 instance type"
  default     = "t2.micro"
}

variable "key_name" {
  description = "Name of the EC2 Key Pair"
  default     = "master-slave"  # Replace with your actual key pair
}

you can use output.tf file to view public key and id

📄 outputs.tf

output "instance_public_ip" {
  description = "Public IP of the EC2 instance"
  value       = aws_instance.redhat_master.public_ip
}

output "instance_id" {
  description = "ID of the created EC2 instance"
  value       = aws_instance.redhat_master.id
}

✅ Step 3: Initialize Terraform

terraform init

✅ Step 4: Preview with Plan

terraform plan

✅ Step 5: Apply Configuration

terraform apply

Type yes when prompted.

✅ Step 6: Output the Instance Details

You’ll see:

Outputs:

instance_id = "i-xxxxxxxxxxxxx"
instance_public_ip = "13.xx.xx.xx"

Use that IP to SSH into your instance:

ssh -i "master-slave.pem" ec2-user@xx.xx.xx.xx

---

✅ Step 7: Destroy the Infrastructure (optional)

To remove everything:

terraform destroy