Dockerfile using python poetry

Dockerfile

ARG IMAGE_TAG="3.8.12-alpine3.15@sha256:ae21a996ebe902ddc73cff020202d94cb539c8c4426f67636374b32a6f9c3d22"
FROM python:${IMAGE_TAG} AS builder

ARG POETRY_VERSION=1.1.12

# hadolint ignore=DL3013,DL3018
RUN apk add --no-cache \
        gcc \
        libffi-dev \
        musl-dev && \
    pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir poetry==${POETRY_VERSION}

WORKDIR /build
COPY . ./
RUN poetry config virtualenvs.create false && \
    poetry build


FROM python:${IMAGE_TAG} AS runtime

ARG PACKAGE_NAME_PATTERN="ssh_tunnel-*-py3-none-any.whl"

COPY --from=builder /build/dist/*.whl /tmp/

# hadolint ignore=DL3013
RUN apk add --no-cache bash=5.1.8-r0 && \
    pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir /tmp/${PACKAGE_NAME_PATTERN} && \
    rm -f /tmp/${PACKAGE_NAME_PATTERN}

CMD [ "/bin/bash" ]