Question 108384 in Ubuntu Question posted in
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Ubuntu – Start service with Docker container & prevent container from quitting immediately

When my Ubuntu Docker container is started, I want SSH server to be running and the container should not quit immediately until I run docker stop $container_id

Is there any difference between these 3 ENTRYPOINT? Is there a better way to do it?

ENTRYPOINT service ssh restart && bash

ENTRYPOINT service ssh restart && tail -f /dev/null

ENTRYPOINT service ssh restart && sleep infinity
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2

Answers


  1. 0

    You can also start the ssh daemon to run in the background
    here is an example:

    RUN service ssh start 
CMD ["/usr/sbin/sshd", "-D"]

    this will start the ssh daemon in the container in a background mode

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  2. 0

    I believe, best entrypoint for a SSH container would be:

    ENTRYPOINT ["/usr/sbin/sshd","-eD"]
    • -D: to make it daemon mode(running in the background but using tty)
    • -e: log to stderr instead of log file. this way You can check ssh logs with docker logs <containerName>
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