vellankikoti/docker-k8s-zero-to-hero ? reverse-engineered prompt

Build me a beginner friendly hands on learning repo for Docker and Kubernetes that takes someone from zero to hero. I want a fun live voting app, like cats versus dogs, that runs locally and is used throughout the lessons so people can actually see containers, pods, scaling, self healing, rollouts, storage, and networking in action. Include clear step by step labs for Docker first, then Kubernetes, plus a troubleshooting mode with break and fix scenarios that deliberately cause common problems and then teach how to solve them. It should work on Docker Desktop, kind, minikube, or a browser based sandbox like Killercoda, with no cloud account needed. Also add simple cheat sheets, setup instructions for total beginners, and a showtime style guide for teaching it in front of a class. Keep the app small and simple, use plain Python and HTML if that fits, and look up current docs online if you need to.