updated Docker build

Dockerfile

@@ -0,0 +1,34 @@
+FROM alpine:latest AS base
+LABEL org.opencontainers.image.authors=oggioni.walter@gmail.com
+RUN --mount=type=cache,target=/var/cache/apk apk update
+RUN --mount=type=cache,target=/var/cache/apk apk add python3 py3-pip uwsgi uwsgi-python3 graphviz uwsgi-gevent3
+
+FROM base AS build
+RUN adduser -D luser
+USER luser
+WORKDIR /home/luser
+COPY --chown=luser:users ./requirements-dev.txt ./md2html/requirements-dev.txt
+COPY --chown=luser:users ./src ./md2html/src
+COPY --chown=luser:users ./pyproject.toml ./md2html/pyproject.toml
+WORKDIR /home/luser/md2html
+RUN python -m venv venv
+RUN --mount=type=cache,target=/home/luser/.cache/pip,uid=1000,gid=1000 venv/bin/pip install -r requirements-dev.txt
+RUN --mount=type=cache,target=/home/luser/.cache/pip,uid=1000,gid=1000 venv/bin/python -m build
+
+FROM base AS release
+RUN mkdir /srv/http
+RUN adduser -D -h /var/md2html -u 1000 md2html
+USER md2html
+WORKDIR /var/md2html
+RUN python -m venv venv
+RUN --mount=type=cache,target=/var/md2html/.cache/pip,uid=1000,gid=1000 --mount=type=cache,ro,from=build,source=/home/luser/md2html/dist,target=/dist venv/bin/pip install /dist/*.whl
+COPY --chown=md2html:users conf/uwsgi.ini /var/md2html/
+
+VOLUME /srv/http
+WORKDIR /srv/http
+ENTRYPOINT ["uwsgi"]
+EXPOSE 1910/tcp
+EXPOSE 1910/udp
+CMD [ "--ini", "/var/md2html/uwsgi.ini" ]
+
+