Deploying a Single EC2 Instance on AWS Using Terraform
This guide will walk you through deploying a single EC2 instance on AWS using Terraform. The instance will serve a simple web page using a minimal HTTP server.
1. Provider Configuration
Create a file named main.tf and add the following configuration to specify the AWS provider:
provider "aws" {
region = "us-east-2"
}
2. Security Group
a security group configuration to allow inbound traffic on port 8080:
resource "aws_security_group" "instance" {
name = "terraform-example-instance"
description = "Allow inbound traffic on port 8080"
ingress {
from_port = 8080
to_port = 8080
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
}
3. EC2 Instance
Add the EC2 instance configuration with user data to run a minimal HTTP server:
resource "aws_instance" "example" {
ami = "ami-0fb653ca2d3203ac1"
instance_type = "t2.micro"
vpc_security_group_ids = [aws_security_group.instance.id]
user_data = <<-EOF
#!/bin/bash
echo "Hello, World" > index.html
nohup busybox httpd -f -p 8080 &
EOF
user_data_replace_on_change = true
tags = {
Name = "terraform-example"
}
}
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