I use sandboxes instead of containers. If you can stick to using Java the JVM can hot-deploy code in real-time without any downtime. It leaks memory but if you

I use sandboxes instead of containers. If you can stick to using Java the JVM can hot-deploy code in real-time without any downtime. It leaks memory but if your systems are minimalist you don't need anything else than one JVM process per machine for everything!