MQTT Communication established

mqttclient/Dockerfile

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+FROM python:3.9 
+# Add sourcecode files
+ADD fanATserial2mqtt.py /root/
+# handle dependencies
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir paho-mqtt pyserial
+CMD ["python", "/root/fanATserial2mqtt.py"] 
+# Or enter the name of your unique directory and parameter set.