Introduction In the previous article , I showed how to build a production-ready Docker image for Laravel & Filament. But in real-world applications, a single container is never enough. Running a production application means dealing with multiple concerns: web server PHP runtime database cache background workers scheduled jobs And this is where things usually start to get messy. The problem with "simple" setups Most Docker Compose examples look like this: one container maybe a database everything else mixed together It works. Until it doesn’t. From my experience, this approach quickly leads to: poor observability difficult debugging no real scaling strategy fragile deployments A simple rule I follow Over time, I ended up following one principle: 👉 one container = one responsibility It sounds simple, but it completely changes how you design your architecture.…