Dockerize

Dockerfile

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+FROM python:3.7.9
+
+# based on https://github.com/pfichtner/docker-mqttwarn
+
+# install python libraries
+#RUN pip install -r requirements.txt
+
+RUN mkdir -p /opt/psmqtt
+WORKDIR /opt/psmqtt
+RUN mkdir -p /var/log/psmqtt
+
+COPY ./requirements.txt /opt/psmqtt
+RUN pip install -r /opt/psmqtt/requirements.txt
+
+# add user psmqtt to image
+RUN groupadd -r psmqtt && useradd -r -g psmqtt psmqtt
+RUN chown -R psmqtt:psmqtt /opt/psmqtt
+RUN chown -R psmqtt:psmqtt /var/log/psmqtt
+#RUN chown -R psmqtt /home/psmqtt
+
+# process run as psmqtt user
+USER psmqtt
+
+# conf file from host
+VOLUME ["/opt/psmqtt/conf"]
+
+# set conf path
+ENV PSMQTTCONFIG="/opt/psmqtt/conf/psmqtt.conf"
+
+# finally, copy the current code (ideally we'd copy only what we need, but it
+#  is not clear what that is, yet)
+COPY . /opt/psmqtt
+
+# run process
+CMD python psmqtt.py