Dockerfile

# `python-base` sets up all our shared environment variables
FROM python:3.11.6 as python-base

    # python
ENV PYTHONUNBUFFERED=1 \
    # prevents python creating .pyc files
    PYTHONDONTWRITEBYTECODE=1 \
    \
    # pip
    PIP_NO_CACHE_DIR=off \
    PIP_DISABLE_PIP_VERSION_CHECK=on \
    PIP_DEFAULT_TIMEOUT=100 \
    \
    # poetry
    # https://python-poetry.org/docs/configuration/#using-environment-variables
    POETRY_VERSION=1.8.5 \
    # make poetry install to this location
    POETRY_HOME="/opt/poetry" \
    # make poetry create the virtual environment in the project's root
    # it gets named `.venv`
    POETRY_VIRTUALENVS_IN_PROJECT=true \
    # do not ask any interactive question
    POETRY_NO_INTERACTION=1 \
    \
    # paths
    # this is where our requirements + virtual environment will live
    PYSETUP_PATH="/opt/pysetup" \
    VENV_PATH="/opt/pysetup/.venv"


# prepend poetry and venv to path
ENV PATH="$POETRY_HOME/bin:$VENV_PATH/bin:$PATH"

RUN pip install --upgrade pip wheel setuptools


# `builder-base` stage is used to build deps + create our virtual environment
FROM python-base as builder-base
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        # deps for installing poetry
        curl \
        ffmpeg \
        libmagic1 \
        # deps for building python deps \
        # deps for weasyprint
        libpango-1.0-0 \
        libpangoft2-1.0-0 \
        libjpeg-dev \
        libopenjp2-7-dev \
        libffi-dev \
        build-essential \
        fonts-wqy-microhei \
        fonts-wqy-zenhei \
        fonts-noto-cjk \
        fonts-noto-cjk-extra
# install poetry - respects $POETRY_VERSION & $POETRY_HOME
RUN curl -sSL https://install.python-poetry.org | python

# copy project requirement files here to ensure they will be cached.
WORKDIR $PYSETUP_PATH
COPY poetry.lock pyproject.toml ./

# install runtime deps - uses $POETRY_VIRTUALENVS_IN_PROJECT internally
RUN poetry install --without dev

# install the browser dependencies for playwright
RUN poetry run playwright install



# `production` image used for runtime
FROM python-base as production
ENV FASTAPI_ENV=production
ENV PYTHONPATH /app:$PYTHONPATH
RUN apt-get update \
    && apt-get install --no-install-recommends -y \
        # deps for installing poetry
        curl \
        ffmpeg \
        libmagic1 \
        # deps for building python deps \
        # deps for weasyprint
        libpango-1.0-0 \
        libpangoft2-1.0-0 \
        libjpeg-dev \
        libopenjp2-7-dev \
        libffi-dev \
        fonts-wqy-microhei \
        fonts-wqy-zenhei \
        fonts-noto-cjk \
        fonts-noto-cjk-extra \
        libnss3 \
        libnspr4 \
        libatk1.0-0 \
        libatk-bridge2.0-0 \
        libcups2 \
        libatspi2.0-0 \
        libxcomposite1 \
        libxdamage1
COPY --from=builder-base $PYSETUP_PATH $PYSETUP_PATH
COPY ./ /app
WORKDIR /app
RUN playwright install
CMD ["gunicorn", "-k", "uvicorn.workers.UvicornWorker", "app.main:app", "--preload"]