Docker: Set timeout and Exit with Error Code

Question

How can make a Docker container exit with an error code after a timeout?

I have a Dockerfile which uses the ubuntu image and copies the script file from my directory to image and finally exectues the script in a container.

FROM ubuntu
WORKDIR /usr/bin/
COPY ./example.py .
RUN chmod +x example.py
ENTRYPOINT ["python3", "example.py"]

Then I run the build command:

docker build -t demo .

run the container:

docker run -it --rm demo

I'm not sure how long does it take to successfully execute the example.py script but I want to exit the container after 1 hour. If the example.py script executed successfully within 1 hour then it's ok otherwise I want to exit with error code.

norbjd · Accepted Answer · 2022-02-02 12:05:42Z

1

You can use the timeout command like this :

ENTRYPOINT ["timeout", "3600", "python3", "example.py"]

If python3 example.py takes more than 1 hour (3'600 seconds), an error will be returned (exit code 124).

edited Feb 2, 2022 at 12:05

answered Sep 18, 2020 at 11:03

norbjd

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2 Comments

Rukender Over a year ago

Sure, let me try this. Thanks for your reply

norbjd Over a year ago

@RedwolfPrograms you're right, thanks for the catch :) I'll update my answer !

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