Managing High Traffic Applications with AWS Elastic Load Balancer and Terraform

Day 5 of my Terraform journey focused on two important ideas: how to place an AWS Application Load Balancer (ALB) in front of an Auto Scaling Group (ASG) how Terraform state works behind the scenes, including what happens when state and real infrastructure drift apart This was one of the most useful days so far because it connected architecture, Terraform behavior, and real-world operational thinking. What I Built I extended my earlier clustered deployment by building a load-balanced web application on AWS using Terraform. The deployment included: an internet-facing Application Load Balancer a listener on port 80 a target group with HTTP health checks an Auto Scaling Group attached to that target group security groups that allowed inbound HTTP to the ALB while restricting direct access to the EC2 instances outputs that exposed the ALB DNS name After deployment, I opened the ALB DNS name in the browser and confirmed it returned my web page successfully. How the ALB and ASG Work Together