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Using "--no-cache-dir" flag in pip install ,make sure dowloaded packages by pip don't cached on system . This is a best practise which make sure to fetch ftom repo instead of using local cached one . Further , in case of Docker Containers , by restricing caching , we can reduce image size. In term of stats , it depends upon the number of python packages multiplied by their respective size . e.g for heavy packages with a lot of dependencies it reduce a lot by don't caching pip packages. Further , more detail information can be found at https://medium.com/sciforce/strategies-of-docker-images-optimization-2ca9cc5719b6 Signed-off-by: Pratik Raj <rajpratik71@gmail.com>
16 lines
412 B
Docker
16 lines
412 B
Docker
#
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# Dockerfile for slacker
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#
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FROM python:3.9-alpine
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MAINTAINER EasyPi Software Foundation
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RUN set -xe \
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&& apk add --no-cache curl \
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&& pip install --no-cache-dir aiosmtpd atpublic pyslack pyyaml requests \
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&& cd /usr/local/lib/python3.9/site-packages/ \
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&& wget https://github.com/ont/slacker/raw/master/handler.py
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EXPOSE 8025
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CMD ["aiosmtpd", "-n", "-l", "0.0.0.0:8025", "-c", "handler.MessageHandler"]
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