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how to pass command line arguments to a python script running in docker

I have a python file called perf_alarm_checker.py, this python file requires two command line arguments: python perf_alarm_checker.py -t something -d something, the Dockerfile looks like this:

# Base image
FROM some base image

ADD perf_alarm_checker.py /perf-test/

CMD python perf_alarm_checker.py

How to pass the two command line arguments, -t and -d to docker run? I tried docker run -w /perf-test alarm-checker -t something -d something but doesn't work.

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Use an ENTRYPOINT instead of CMD and then you can use command line options in the docker run like in your example.

ENTRYPOINT ["python", "perf_alarm_checker.py"]


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