AWS day 3 lab: Unlock 'seamless' scaling with 20 config steps, a bash script, and 10 minutes of CPU torture

Amazon Web Services (AWS) users participated in a hands-on lab on monitoring and scaling EC2 instances using an Application Load Balancer (ALB), an Auto Scaling Group, and CloudWatch. The lab involved creating a launch template for the Auto Scaling Group with Amazon Linux 2023 and installing nginx. A security group for the ALB was configured to allow HTTP traffic from anywhere, while the security group for EC2 allowed HTTP traffic from the ALB security group. The lab demonstrated how to scale EC2 instances based on CPU usage, with a dynamic scaling policy created to automatically adjust the number of instances. The exercise also highlighted the importance of proper resource cleanup to avoid dependency failures. Key takeaways included the differences between ALB and Network Load Balancer (NLB), as well as scaling strategies for EC2, Lambda, and ECS/EKS resources, showcasing AWS's capabilities in managing and scaling cloud resources efficiently.