| 12345678910111213141516171819202122232425 | FROM gcr.io/google-appengine/python# Create a virtualenv for dependencies. This isolates these packages from# system-level packages.# Use -p python3 or -p python3.7 to select python version. Default is version 2.RUN virtualenv /env -p python3# Setting these environment variables are the same as running# source /env/bin/activate.ENV VIRTUAL_ENV /envENV PATH /env/bin:$PATHRUN apt-get update && apt-get install -y python-opencv# Copy the application's requirements.txt and run pip to install all# dependencies into the virtualenv.ADD requirements.txt /app/requirements.txtRUN pip install -r /app/requirements.txt# Add the application source code.ADD . /app# Run a WSGI server to serve the application. gunicorn must be declared as# a dependency in requirements.txt.CMD gunicorn -b :$PORT main:app
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