Switch from pipenv to poetry

Dockerfile

@@ -1,6 +1,8 @@
 ARG DEBIAN_RELEASE=buster
-FROM debian:$DEBIAN_RELEASE
-LABEL maintainer="Jan Dittberner <jan@dittberner.info>"
+FROM debian:$DEBIAN_RELEASE AS builder
+
+ARG GVAAPP=gvaweb
+ARG POETRY_VERSION=1.3.1
 
 ENV LC_ALL=C.UTF-8
 ENV LANG=C.UTF-8
@@ -8,38 +10,51 @@ ENV LANG=C.UTF-8
 RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
     build-essential \
-    dumb-init \
-    gettext \
+    curl \
     git \
     python3-dev \
-    python3-pip \
     python3-setuptools \
     python3-virtualenv \
-    python3-wheel \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*.*
+    python3-wheel
 
-RUN python3 -m pip install --prefix=/usr/local pipenv
-
-ARG GVAGID=2000
-ARG GVAUID=2000
-
-ARG GVAAPP=gvaweb
+RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/root/.local POETRY_VERSION=$POETRY_VERSION python3 - \
+    && /root/.local/bin/poetry config virtualenvs.in-project true
 
 WORKDIR /srv/$GVAAPP
 
-COPY Pipfile Pipfile.lock /srv/$GVAAPP/
+COPY poetry.lock pyproject.toml /srv/$GVAAPP/
+
+RUN /root/.local/bin/poetry install --only=main
+
+FROM debian:$DEBIAN_RELEASE
+LABEL maintainer="Jan Dittberner <jan@dittberner.info>"
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+       ca-certificates \
+       dumb-init \
+       gettext \
+       python3 \
+       python3-pip \
+       python3-wheel \
+    && apt-get clean \
+    && rm -rf /var/cache/apt/archives /var/lib/apt/lists/*
+
+ARG GVAAPP=gvaweb
+ARG GVAGID=2000
+ARG GVAUID=2000
+
+WORKDIR /srv/$GVAAPP
 
 RUN addgroup --gid $GVAGID $GVAAPP ; \
     adduser --home /home/$GVAAPP --shell /bin/bash --uid $GVAUID --gid $GVAGID --disabled-password --gecos "User for gnuviechadmin component $GVAAPP" $GVAAPP
 
+COPY --chown=$GVAAPP:$GVAAPP --from=builder /srv/$GVAAPP/.venv /srv/$GVAAPP/.venv
+
 USER $GVAAPP
-RUN python3 -m virtualenv --python=python3 /home/$GVAAPP/$GVAAPP-venv ; \
-    /home/$GVAAPP/$GVAAPP-venv/bin/python3 -m pip install -U pip ; \
-    VIRTUAL_ENV=/home/$GVAAPP/$GVAAPP-venv pipenv install --deploy --ignore-pipfile --dev
 
 VOLUME /srv/$GVAAPP
 
-COPY gvaweb.sh /srv/
+COPY ${GVAAPP}.sh /srv/
 
-ENTRYPOINT ["dumb-init", "/srv/gvaweb.sh"]
+ENTRYPOINT ["dumb-init", "/srv/${GVAAPP}.sh"]