Dockerfile

# Creating a python base with shared environment variables
FROM python:3.10.7 as base
ENV PIP_NO_CACHE_DIR=off \
    PIP_DEFAULT_TIMEOUT=100 \
    PIP_DISABLE_PIP_VERSION_CHECK=on \
    POETRY_HOME="/opt/poetry" \
    POETRY_NO_INTERACTION=1 \
    POETRY_VIRTUALENVS_IN_PROJECT=true \
    PYSETUP_PATH="/opt/pysetup"

ENV PATH="$POETRY_HOME/bin:$PATH"

# Install Poetry - respects $POETRY_VERSION & $POETRY_HOME
ENV POETRY_VERSION=1.1.14
RUN curl -sSL https://install.python-poetry.org | python3 -

# We copy our Python requirements here to cache them
# and install only runtime deps using poetry
WORKDIR $PYSETUP_PATH
COPY ./poetry.lock ./pyproject.toml ./
RUN poetry install --no-dev --no-root

# `production` stage uses the dependencies downloaded in the `base` stage
FROM python:3.10.7-slim as production
ENV PORT=8000 \
    PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    VIRTUAL_ENV=/opt/pysetup/.venv

ENV PATH="$VIRTUAL_ENV/bin:$PATH"

COPY --from=base $VIRTUAL_ENV $VIRTUAL_ENV

ARG userid=10001
ARG groupid=10001
RUN groupadd --gid $groupid app && \
    useradd -g app --uid $userid --shell /usr/sbin/nologin --create-home app
USER app

WORKDIR /app
COPY . .

EXPOSE $PORT
CMD ["python", "-m", "asgi"]