Dockfile

FROM python:3.10
WORKDIR /app
COPY . .

# https://stackoverflow.com/questions/32727594/how-to-pass-arguments-to-shell-script-through-docker-run
#ENTRYPOINT ["/bin/bash", "entrypoint.sh"]
#ENTRYPOINT  ["sh", "-c", "/app/entrypoint.sh \"$@\"", "--"]
CMD ["sh", "-c", "/app/entrypoint.sh \"$@\"", "--"]

#!bin/bash
echo $@

Both the line starting with ENTRYPOINT is correct. The line starting with CMD is wrong. The answer is in https://stackoverflow.com/questions/32727594/how-to-pass-arguments-to-shell-script-through-docker-run

docker run your_image arg1 arg2 will replace the value of CMD with arg1 arg2. That’s a full replacement of the CMD, not appending more values to it. This is why you often see docker run some_image /bin/bash to run a bash shell in the container.