run python function as command line when django is runing under docker

Question

I am working on a django docker image and I want to execute a function ussing command line, I know that I can enter to shell python docker container and run a function like this :

docker container ls to find the container id and use in the next command
docker container exec -it <container_id> python3 manage.py shell Then:

[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>>
>>> from xx import foo 
>>> foo()  # foo() has been excecuted

However, i was wondering if i can use something similar like python flag -c which help to run small piece of python code as command line like this:

python3 -c "from xx import foo; foo()"

I tried to insert a cmd with linux tubes : echo 'from xx import foo; foo()' | docker container exec -it <container_id> python3 manage.py shell, However it doesn't work.

I'd appreciate any advice, thanks for your time.

You could call the function from a custom management command? docs.djangoproject.com/en/3.0/howto/custom-management-commands — Iain Shelvington
– Iain Shelvington, Commented Mar 27, 2020 at 2:05

ruddra · Accepted Answer · 2020-03-27 04:29:22Z

3

You can do it like this:

docker exec -it <container id> python3 manage.py shell --command="import foo;foo()"

More information can be found in documentation.

answered Mar 27, 2020 at 4:29

ruddra

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