تصحيح أخطاء الحاويات

في هذا الدرس

find out why a container misbehaves.

الموضوعات المخطط لها

• docker logs -f NAME shows the output of the app.
• docker exec -it NAME sh opens a shell inside a running container.
• docker inspect NAME shows environment, mounts, network, and exit code.
• docker ps -a shows stopped containers; check their exit code (137 often means killed, for example out of memory).
• Check the simple things first: wrong port, wrong env var, wrong hostname.