`DOCKER_BUILDKIT=1 docker build --target=runtime -t myapp .`

Dockerfile

FROM python:3.10.12 as builder

RUN pip install poetry==1.4.2

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

WORKDIR /app

COPY pyproject.toml poetry.lock ./
RUN touch README.md

RUN --mount=type=cache,target=$POETRY_CACHE_DIR poetry install --without dev --no-root


FROM python:3.10.12 as runtime

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

ENV PYTHONPATH=/src

COPY --from=builder ${VIRTUAL_ENV} ${VIRTUAL_ENV}

RUN pip install pysqlite3-binary

COPY src ./src
COPY .env .

ENTRYPOINT ["python", "-m", "src.main"]