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I've installed Docker on Windows Server 2019 according to this manual but when I try to build my image it fails with errors:

Step 5/13 : RUN python3 -m venv /opt/venv ---> [Warning] The requested image's platform (linux/amd64) does not match the detected host platform (windows/amd64) and no specific platform was requested ---> Running in 6b034a5cbe59 The command '/bin/sh -c python3 -m venv /opt/venv' returned a non-zero code: 4294967295: failed to shutdown container: container 6b034a5cbe59b5aae61936320a216306c1722c2cccf63a93069ed5897940c290 encountered an error during hcsshim::System::waitBackground: failure in a Windows system call: The virtual machine or container with the specified identifier is not running. (0xc0370110): subsequent terminate failed container 6b034a5cbe59b5aae61936320a216306c1722c2cccf63a93069ed5897940c290 encountered an error during hcsshim::System::waitBackground: failure in a Windows system call: The virtual machine or container with the specified identifier is not running. (0xc0370110) ERROR: Service 'server' failed to build : Build failed 

Here is my Dockerfile:

FROM python:3.8-slim-buster ENV PYTHONUNBUFFERED 1 WORKDIR /app COPY requirements/ requirements/ RUN python3 -m venv /opt/venv RUN . ./opt/venv RUN pip install --no-cache-dir --upgrade pip RUN pip install --no-cache-dir --upgrade setuptools RUN pip install --no-cache-dir -r requirements/common.txt RUN pip install --no-cache-dir psycopg2-binary COPY . . RUN ["chmod", "+x", "/app/entrypoint.sh"] ENTRYPOINT ["/app/entrypoint.sh"] 

docker-compose.yml:

version: '3.9' services: server: build: context: . dockerfile: Dockerfile environment: - "SQLALCHEMY_DATABASE_URI=<DB_CONNECTION_STR>" - "RAW_DATA_DIR=/app/mydrive" restart: "always" volumes: - ${CONFIG_PATH}\companyLogo.png:/app/files/branding/companyLogo.png - mydrive:/app/mydrive networks: - internal ports: - '80:80' command: "server" volumes: mydrive: driver: local driver_opts: type: cifs o: 'username=<USERNAME>,password=<PASSWORD>,domain=<DOMAIN>,uid=5000,gid=6000' device: '<LINK_TO_MY_SERVER>' networks: internal: 

As it shown above there is a simple Docker image for Flask, and if I will run a pure python:3.8-slim-buster image and run all these commands manually then all works. However, docker build . and docker-compose build fail. I tried to google the error and error code but there is a nothing useful.

Why does it happen? How to fix it?

1 Answer 1

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I believe that you will need to use a Python image for Windows Server, as suggested here.

The official Docker images with Python over Windows are listed in the Docker Hub, marked with windowsservercore.

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Unfortunately, we use same builds on Linux and Windows servers, so we would wanted to keep a single platform for images

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