Refactoring to serverless doesn't have to be just a thousands of lines of code, or heavy duty lambda functions. You can leverage on resources that AWS already offers. This is a real project example of going serverless the robust and upgrade-unfriendly application running on EC2 and S3 - to a modern, serverless, containerized, CICD automated and ops ready using AWS Network Firewall, ECS/Fargate and instance store.