Dockerfile CMD instruction will exit the container just after running it

Question

I want to setup some configuration when my container starts, for this I am using shell scripts. But my container will exits as soon as my scripts ends, I have tried with -d

Answer 1

Finally with some experiments I got my best result as below

There is nothing wrong with my Dockerfile as below it's correct.

FROM ubuntu:14.04

ADD shell.sh /usr/local/bin/shell.sh

RUN chmod 777 /usr/local/bin/shell.sh

CMD /usr/local/bin/shell.sh

What I do to get expected result is, I just add one more command(/bin/bash) in my shell script file as below and vola everything works in my best way.

#!/bin/bash

echo “Hello-docker” > /usr/hello.txt

/bin/bash