I have created a Docker image with for a Flask app. Inside my Flask app, this is how I specify the file paths.
dPath = os.getcwd() + "\\data\\distanceMatrixv2.csv"
This should ideally resolve in a filepath similar to
app/data/distanceMatrixv2.csv. This works when I do a
py main.py run in the CMD. After making sure I am in the same directory, creating the image and running the Docker image via
docker run -it -d -p 5000:5000 flaskapp, it throws me the error below when I try to do any processing.
FileNotFoundError: /backend\data\distanceMatrixv2.csv not found.
I believe this is due to how Docker resolves file paths but I am a bit lost on how to "fix" this. I am using Windows while my Docker image is built with
node:lts-alpine is based on Alpine which is a Linux distro. So your python program runs under Linux and should use Linux file paths, i.e. forward slashes like
dPath = os.getcwd() + "/data/distanceMatrixv2.csv"
It looks like
/backend. So the full path becomes
Answered By – Hans Kilian