How to get environment variables from a non-executable script in a docker container?

Question

I have a Dockerfile:

### everything, that was commented out with '#' was tried to no avail
FROM ubuntu
#RUN echo "!#/bin/sh" > do.sh
RUN echo "export A=A" >> do.sh

### please run script do.sh
#SHELL ["/bin/bash" ,"-c", "source /do.sh"]
#RUN source /do.sh
#ENTRYPOINT /do.sh

And I build it with a Makefile:

all: build run
build:
    echo build|figlet
    docker build -t test .
run:
    echo run|figlet
    docker run -it test

I just want to have the environment variable from the script do.sh when I enter the interactive terminal.

This is a recreation of a problem from another context. That is why I do not want to make the script executable. My original context is: I want to call a script in catkin_ws/devel . ~/catkin_ws/devel/setup.bash . ~/catkin_ws/devel/setup.bash from this tutorial http://wiki.ros.org/ROS/Tutorials/CreatingPackage .

Answer 1

Try "--env-file=" option with docker run

RUN echo "export A=A" >> ~/.bash_profile

all: build run
build:
    echo build|figlet
    docker build -t test .
run:
    echo run|figlet
    docker run -it test /bin/bash -l