Dockerfile

FROM python:3.12-bullseye as builder

RUN pip install poetry==1.8.2

ENV POETRY_NO_INTERACTION=1 \
    POETRY_VIRTUALENVS_IN_PROJECT=1 \
    POETRY_VIRTUALENVS_CREATE=1 \
    POETRY_CACHE_DIR=/tmp/poetry_cache

COPY pyproject.toml poetry.lock /usr/src/app/
WORKDIR /usr/src/app

RUN poetry install --no-root && rm -rf $POETRY_CACHE_DIR

# The runtime image, used to just run the code provided its virtual environment
FROM python:3.12-slim-bullseye as runtime

RUN apt-get update && apt-get -y install --no-install-recommends libmagic1 && rm -rf /var/lib/apt/lists/*

ENV VIRTUAL_ENV=/usr/src/app/.venv \
    PATH="/usr/src/app/.venv/bin:$PATH"

COPY --from=builder ${VIRTUAL_ENV} ${VIRTUAL_ENV}
COPY . /usr/src/app
WORKDIR /usr/src/app