How to see what a container is doing — docker stats and docker top

Something is slow or a container looks hung: check its resource usage and whether your app is actually running inside.

docker stats --no-stream       # one snapshot (script-friendly); drop the flag for live view
docker top web                # is your app actually running in there?

Docker Cheatsheet one-page card — commands that actually work — The full one-page card — Docker Cheatsheet. Get the complete cheatsheet on GitHub