Workaround to docker run “--env-file” supplied file not being evaluated as expected

Question

My current setup for running a docker container is on the lines of this:

1. I\'ve got a main.env file:

# Main
export PRIVATE_IP=\\`echo          


        

Answer 1

creating an ENV file that is nothing more than key/value pairs can be processed in normal shell commands and appended to the environment. Look at the bash -a pragma.