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Windows docker: Invalid reference format – Nginx

Following is my docker file content:

FROM ubuntu:18.04

MAINTAINER Amazon AI <[email protected]>


RUN apt-get -y update && apt-get install -y --no-install-recommends 
         wget 
         python3-pip 
         python3-setuptools 
         nginx 
         ca-certificates 
    && rm -rf /var/lib/apt/lists/*

RUN ln -s /usr/bin/python3 /usr/bin/python
RUN ln -s /usr/bin/pip3 /usr/bin/pip

RUN pip --no-cache-dir install numpy==1.16.2 scipy==1.2.1 scikit-learn==0.20.2 pandas flask gunicorn

ENV PYTHONUNBUFFERED=TRUE
ENV PYTHONDONTWRITEBYTECODE=TRUE
ENV PATH="/opt/program:${PATH}"

COPY decision_trees /opt/program
WORKDIR /opt/program

I built the docker image in windows power-shell with command docker build -t tree-model .

Now when I am trying to run the command:

docker run —rm -v $(pwd)/local_test/test_dir:/opt/ml tree-model train

It gives me the following error:

docker: invalid reference format.
See 'docker run --help'.

I tried following options:

  1. Instead of $(pwd)/local_test/test_dir I tried putting complete path: D:/Sample/local_test/test_dir:/opt/ml. It didn’t work
  2. Instead of $(pwd) I tried ${pwd} it didn’t work. (By the way $(pwd) prints the correct current directory, I tested it)
  3. All combination with back and forward slash. Still no success.
  4. All possible combinations with single and double quote on path. No success.

I am new to docker and never mounted a volume before. I tried other answers on stackoverflow but no success. Need help on this.

Tags:

2

Answers


  1. 0

    $(pwd) is a Linux thing. On Windows, you can use %cd%, so you’d write

    docker run --rm -v %cd%/local_test/test_dir:/opt/ml tree-model train
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  2. 0

    Are you running with git bash by any chance? If so, try giving in pure Windows format but double the backslashes. For example, I use something like C:\dkrshare:/dkrshare. Seems git bash environment rewrites the paths given but docker does not like the rewrite.

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