🚀 ECS on EC2 with ALB and ASG using Terraform

This project provisions a fully working ECS cluster running on EC2 instances, behind an Application Load Balancer (ALB) with an Auto Scaling Group (ASG), using Terraform.

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📐 Architecture Overview

• VPC with 2 public subnets
• Internet Gateway and routing
• Security Groups for EC2 and ALB
• Application Load Balancer (ALB)
• Launch Template with ECS-optimized AMI
• Auto Scaling Group (ASG) linked to ALB Target Group
• ECS Cluster in EC2 mode
• Task Definition and ECS Service
• Load-balanced containers with health checks
• Task placement strategy to spread tasks across instances

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✅ Requirements

• Terraform >= 1.3
• AWS CLI configured (aws configure)
• Existing Key Pair in your region (for SSH access)
• ECS-optimized AMI (e.g. ami-000449a00007eadf7 in us-east-1)
• AWS IAM credentials with permission to create all resources

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⚙️ How to Deploy

terraform init
terraform apply