CODEWITHSUNDEEP
dockerdockerfile
DHEXX
DHEXX

Reputation: 25

How do i pass arguments to a python script in a container

My python script needs two arguments to run --manual, --ckl and an optional --output. manual and ckl are just files used as to create an output file. I use argparse in the script.

When i try to run docker run test --manual test.xml --ckl rhel7.ckl

I get this error

docker: Error response from daemon: OCI runtime create failed: container_linux.go:380: starting container process caused: exec: "--manual": executable file not found in $PATH: unknown.

FROM python:3.10
WORKDIR /home/johnb
RUN pip install pandas 
ADD manual_into_ckl.py .
#command to run 
CMD [ "python", "manual_into_ckl.py"]

i'm new to this and im not sure how to configure the dockerfile correctly. I've tryed using the full path in the docker run command and that doesn't change anything

Upvotes: 2

Views: 1544

Answers (1)

franklinsijo
franklinsijo

Reputation: 18290

If you want arguments to be passed to the container, then use ENTRYPOINT instruction in exec form instead of CMD in your Dockerfile.

FROM python:3.10
WORKDIR /home/johnb
RUN pip install pandas 
ADD manual_into_ckl.py .
#command to run 
ENTRYPOINT [ "python", "manual_into_ckl.py"]

Then run the container as

docker run test --manual test.xml --ckl rhel7.ckl

The additional arguments passed to docker run will be passed as args to the entrypoint specified in the dockerfile. The resulting command would look like

python manual_into_ckl.py --manual test.xml --ckl rhel7.ckl

Upvotes: 2

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