Container exits immediately in detached mode

Question

I suppose a docker container run at background could be held alive. But the truth is container always exists immediately in detached mode.

docker run -d busybox
ps -a
CONTAINER ID        IMAGE                      COMMAND             CREATED             STATUS                      PORTS               NAMES
42d4db933e8a        busybox:latest             /bin/sh             11 seconds ago      Exited (0) 11 seconds ago                       sharp_sammet

How to persist this session without faking doing some loop jobs to prevent being closed.

Answer 1

Just simply run docker run -dt busybox instead. The option "t" means tty(stdio/stdout) will be held and thing works as you expected.