How to pass a json-like environment variable to docker run

Question

I'm trying to pass this variable : REGION={'code': 44, 'name': 'grand_est', 'pretty_name': 'Grand Est'} to docker run.

The exact command is:

docker run \
 -e "REGION={'code': 44, 'name': 'grand_est', 'pretty_name': 'Grand Est'}" \
 meteocovid

But I get the error:

docker: invalid reference format.

I can't split the variable REGION into separated variable because the docker container needs it in this exact format and I can't rebuild the variable within the container.

Does anyone have an idea?

Answer 1

Try this instead:

docker run \
 -e REGION="{'code': 44, 'name': 'grand_est', 'pretty_name': 'Grand Est'}" \
 meteocovid

You are now passing a string of the "object" which you can then parse in whatever language you're using.