Haven’t been able to find any info on this but I’m hoping it’s something simple. I’m trying to create a basic image that runs a python script by default. I’ve set the command line now to just “python --help” to remove any complexity around actually executing the script:
FROM python:3.5.2
WORKDIR /opt
COPY script.py .
CMD ["python", "--help"]
When I run the image like this:
docker run the-image python --help
It works just fine, the help text is printed out. When I run it without overriding the command I get this:
docker run the-image
standard_init_linux.go:175: exec user process caused "exec format error"
I’ve tried absolute paths and different variations, but the results are always the same: works fine if I manually enter the command line but fails with “exec format error” if I leave that blank to use the CMD directive.
This is on the latest Docker for Windows, running on Win10 x64