Hi everyone, I’m having some difficulty with GitHub storage in a KubernetesJob. I’m trying to use our existing app base docker images with Prefect installed on top so I have my dependencies preinstalled, then GitHub storage for the flow code. But when I try and run the Jobs I see this error

/usr/local/bin/python: Error while finding module specification for 'prefect.engine' (ModuleNotFoundError: No module named 'prefect')

Our base image has a non-standard

WORKDIR

at

/home/app

but setting

PREFECT_HOME

on the container doesn’t seem to fix it. Any help would be greatly appreciated.

That's strange. Python is saying it doesn't think Prefect is installed at all. Perhaps try open a shell in the image locally by running something like

docker run -it my-image:latest bash

. Once you're in, try running

python -m prefect.engine

and see if you get the same error message. If so, run

pip list

to see what Python actually thinks is installed.

Ah that’s helped, turns out the base image installs all the dependencies with Poetry, so the other Pods all start up with commands like

poetry run my-web-app

So what is the command/entrypoint that Prefect runs on the start up of a

KubernetesJob

? Is there some way to override it?