I am using docker-compose to manage Docker. Now suppose I want to update a source code in one of the Docker containers.

Can I do it using the exec but then how to copy the code from host to running container ?

Or is there any better solution to do the above task ?

2 Answers 2


It's a bad practice. You need to use Continuous Integration rebuild docker image (see Dockerfile) every time when source code changed.

  • can you suggest some suitable CI/ CD lib or software for the same ? Commented Sep 28, 2018 at 8:46
  • 1
    Drone CI, Jenkins, Travis CI Commented Sep 28, 2018 at 10:58

In terms of doing it once to verify how this is done you can use the docker cp command from the host machine -> https://docs.docker.com/engine/reference/commandline/cp/

But I agree with Meiram, this is bad practice. You want to be able to have the ability to revert back to a previous version of not only the code but also the container.

There is a very good tutorial here integrating Docker/DockerHub with Github, Jenkins, and even Sonarqube.


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