I Built a Multi-Service Kubernetes App and Here's What Actually Broke

I Built a Multi-Service Kubernetes App and Here's What Actually Broke The Goal This wasn't a "follow the tutorial" project. The goal was simple: understand how real distributed systems actually work inside Kubernetes. Not just "deploy containers," but truly understand: How services discover each other How internal networking routes traffic How ingress exposes applications externally How TLS termination works at the edge How secrets and configs propagate How rolling updates affect uptime The difference between stateful and stateless workloads How DNS resolution works across namespaces How to debug when things inevitably break The result is a multi-service voting application that mirrors real production microservices architecture. The Architecture Five independent services, each with a specific role: Voting Frontend - Stateless web UI where users cast votes Results Frontend - Stateless web UI displaying real-time results Redis - Message queue for asynchronous processing PostgreSQL - Pers