ALB, Auto Scaling Group & Launch Template

Deploy a production-style two-AZ web tier on AWS using the CLI. You will create a VPC with public subnets, a launch template that boots a web server, an Application Load Balancer, and an Auto Scaling Group with a CPU-based scaling policy. Finally, you will observe load balancing across instances and verify self-healing when an instance is terminated.

You'll learn to:

• Create a launch template with user data that bootstraps a web server
• Deploy an Application Load Balancer spanning two Availability Zones
• Configure a target group with health checks
• Create an Auto Scaling Group with min/max/desired capacity
• Attach a target-tracking scaling policy based on CPU utilization
• Observe ALB traffic distribution and ASG self-healing behavior

Key Resources:

• AWS EC2 Auto Scaling Documentation
• AWS ALB Documentation
• AWS Launch Templates