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dockerfiles/urlwatch/Dockerfile
Pratik raj b113da5d19 chore: Use --no-cache-dir flag to pip in Dockerfiles, to save space
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>
2021-07-02 01:02:49 +05:30

44 lines
1.4 KiB
Docker

#
# Dockerfile for urlwatch
#
FROM alpine:3
LABEL maintainer="EasyPi Software Foundation"
RUN set -xe \
&& apk add --no-cache ca-certificates \
build-base \
libffi-dev \
libxml2 \
libxml2-dev \
libxslt \
libxslt-dev \
openssl-dev \
py3-cryptography \
py3-pip \
python3 \
python3-dev \
&& pip3 install --no-cache-dir appdirs \
cssselect \
keyring \
lxml \
minidb \
pyyaml \
requests \
chump \
beautifulsoup4 \
pushbullet.py \
urlwatch \
&& apk del build-base \
libffi-dev \
libxml2-dev \
libxslt-dev \
openssl-dev \
python3-dev \
&& echo '*/30 * * * * cd /root/.urlwatch && urlwatch --urls urls.yaml --config urlwatch.yaml --hooks hooks.py --cache cache.db' | crontab -
VOLUME /root/.urlwatch
WORKDIR /root/.urlwatch
CMD ["crond", "-f", "-L", "/dev/stdout"]