# A perfect way to Dockerize your Python application
# https://sourcery.ai/blog/python-docker/

FROM python:3.7-slim as base

# Setup env.
# Set environment variables that set the locale correctly, stop Python from
# generating .pyc files, and enable Python tracebacks on segfaults.
ENV LANG C.UTF-8
ENV LC_ALL C.UTF-8
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONFAULTHANDLER 1


FROM base AS python-deps

# Install pipenv and compilation dependencies
RUN pip install pipenv
RUN apt-get update && apt-get install -y --no-install-recommends gcc

# Install python dependencies in /.venv
COPY Pipfile .
COPY Pipfile.lock .
RUN PIPENV_VENV_IN_PROJECT=1 pipenv install --deploy


FROM base AS runtime

# Copy virtual env from python-deps stage.
COPY --from=python-deps /.venv /.venv
ENV PATH="/.venv/bin:$PATH"

# Create and switch to a new user.
# Running as the root user is a security risk, so we create a new user and use
# their home directory as the working directory:
RUN useradd --create-home appuser
WORKDIR /home/appuser
USER appuser

# Install application into container.
COPY . .

# Run the application.
ENTRYPOINT ["python", "-m", "http.server"]
CMD ["--directory", "directory", "8000"]