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							- FROM python:3.9.2-alpine3.12
 
- COPY requirements.txt dht22mqtt.py gpiomapping.py ./
 
- RUN apk add gcc musl-dev && \
 
-     pip3 install -r requirements.txt --no-cache-dir && \
 
-     pip3 cache purge && \
 
-     apk del gcc musl-dev && \
 
-     rm -rf /var/lib/apk/lists/* && \
 
-     mkdir log && chmod 777 log/
 
- CMD [ "python3", "-u", "dht22mqtt.py" ]
 
 
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