Mount Type Cache in Dockerfile

FROM python:3.11-buster as builder

RUN pip install poetry==1.3.2

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

RUN rm -rf /var/lib/apt/lists/*

WORKDIR /src

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:3.11-buster as runtime

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

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

WORKDIR /src
COPY . ./

RUN chmod +x /src/bin/run

CMD ["/src/bin/run"]

FROM python:3.11-buster as builder

RUN pip install poetry==1.3.2

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

RUN rm -rf /var/lib/apt/lists/*

WORKDIR /src

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:3.11-buster as runtime

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

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

WORKDIR /src
COPY . ./

RUN chmod +x /src/bin/run

CMD ["/src/bin/run"]