Question 285209 in Docker Question posted in
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How can I specify user inputs to a shell script that is being run while building a Docker image

I am currently using a Dockerfile to run 2 shell scripts when building a Docker image. If I don’t run either shell script while building the image, but instead start up a container and then run the first shell script, it will ask for two inputs. If I specify the first one as ‘root’ and the second as ‘/root’, then the various files installed by the first shell script are exactly where the second shell script wants them to be.

How can I write my Dockerfile so that if I attempt to run the first shell script using:

   RUN instal_script1.sh

It will give ‘root’ as the response to the first query and ‘/root’ as the response to the second query?

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2

Answers


  1. 0

    Try passing the arguments (separated by n) to the script using a pipe, like this

    RUN printf 'rootn/rootn' | instal_script1.sh
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  2. 0

    To automatically run the script instal_script1.sh in the Dockerfile with predefined responses to the prompts, you can use the "echo" command in combination with pipes "|"

    RUN echo -e "rootn/root" | instal_script1.sh
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