Fix #3 add dockerfile

docker/image/Dockerfile

@@ -0,0 +1,82 @@
+#
+# Copyright (C) 2022 Sebastian Thomschke and contributors
+# SPDX-License-Identifier: AGPL-3.0-or-later
+#
+
+######################
+# runtime image base
+######################
+FROM python:3-slim as runtime-base-image
+
+LABEL maintainer="Sebastian Thomschke"
+
+ARG DEBIAN_FRONTEND=noninteractive
+ARG LC_ALL=C
+
+RUN set -eu \
+ #
+ && apt-get update -y \
+ && echo "#################################################" \
+ && echo "Install Chromium + Driver..." \
+ && echo "#################################################" \
+ && apt-get install --no-install-recommends -y chromium chromium-driver \
+ #
+ && rm -rf \
+    /var/cache/{apt,debconf} \
+    /var/lib/apt/lists/* \
+    /var/log/{apt,alternatives.log,bootstrap.log,dpkg.log} \
+    /tmp/* /var/tmp/*
+
+
+######################
+# build image
+######################
+
+# https://hub.docker.com/_/python?tab=tags&name=3-slim
+FROM python:3-slim AS build-image
+
+RUN apt-get update \
+ && apt-get install --no-install-recommends -y git \
+ && python -m pip install --upgrade pip
+
+COPY kleinanzeigen_bot /opt/app/kleinanzeigen_bot
+COPY .git /opt/app/.git
+COPY *.py *.txt *.toml /opt/app/
+
+RUN cd /opt/app \
+ && ls -la . \
+ && pip install --user . \
+ # generates version.py
+ && python setup.py --version
+
+
+######################
+# final image
+######################
+FROM runtime-base-image
+COPY --from=build-image /root/.local /root/.local
+
+ARG BUILD_DATE
+ARG GIT_COMMIT_HASH
+ARG GIT_COMMIT_DATE
+ARG GIT_REPO_URL
+
+LABEL \
+  org.label-schema.schema-version="1.0" \
+  org.label-schema.build-date=$BUILD_DATE \
+  org.label-schema.vcs-ref=$GIT_COMMIT_HASH \
+  org.label-schema.vcs-url=$GIT_REPO_URL
+
+# https://stackoverflow.com/a/59812588/5116073
+ENV PYTHONUNBUFFERED=1
+ENV DISPLAY=0:0
+
+ENTRYPOINT ["/bin/bash", "/opt/run.sh"]
+
+ENV \
+  INIT_SH_FILE='' \
+  CONFIG_FILE=/mnt/data/config.yaml
+
+COPY docker/image/run.sh /opt/run.sh
+
+VOLUME /mnt/data