How to set bash aliases for docker containers in Dockerfile?

I am new to docker. I found that we can set environment variables using ENV instruction in the Dockerfile. But how does one set bash aliases for long commands in Dockerfile?

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  • 2 Solutions collect form web for “How to set bash aliases for docker containers in Dockerfile?”

    Basically like you always do, by adding it to the users .bashrc:

    FROM foo
    RUN echo 'alias hi="echo hello"' >> ~/.bashrc
    

    As usual this will only work for interactive shells:

    docker build -t test .
    docker run -it --rm --entrypoint /bin/bash test hi
    /bin/bash: hi: No such file or directory
    docker run -it --rm test bash
    $ hi
    hello
    

    For non-interactive shells you should create a small script and put it in your path, i.e.:

    echo '#!/bin/bash\necho hello' > /usr/bin/hi
    chmod +x /usr/bin/hi
    

    You can use entrypoint, but it will not work for alias, in your Dockerfile:

    ADD dev/entrypoint.sh /opt/entrypoint.sh
    ENTRYPOINT ["/opt/entrypoint.sh"]
    

    Your entrypoint.sh

    #!/bin/bash
    set -e
    
    function dev_run()
    {
    
    }
    
    export -f dev_run
    
    exec "$@"
    

    (Quick copy/paste, sorry)

    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.