dockerfiles/scrapyd/onbuild/Dockerfile

#
# Dockerfile for scrapyd-onbuild (python3)
#

FROM vimagick/scrapyd:py3
MAINTAINER EasyPi Software Foundation

ONBUILD ADD ./*.txt /etc/scrapyd/
ONBUILD RUN cd /etc/scrapyd; \
            [ -f packages.txt -o -f dependencies.txt ] && apt-get update; \
            [ -f packages.txt ] && xargs -r apt-get install -y < packages.txt; \
            [ -f dependencies.txt ] && xargs -r apt-get install -y < dependencies.txt; \
            [ -f requirements.txt ] && pip install --no-cache-dir -r requirements.txt; \
            [ -f dependencies.txt ] && xargs -r apt-get purge -y --auto-remove < dependencies.txt; \
            [ -f packages.txt -o -f dependencies.txt ] && rm -rf /var/lib/apt/lists/*
add scrapyd-onbuild 2015-06-01 01:08:57 +00:00			`#`
update scrapyd 2020-05-29 04:11:32 +00:00			`# Dockerfile for scrapyd-onbuild (python3)`
add scrapyd-onbuild 2015-06-01 01:08:57 +00:00			`#`

update scrapyd 2020-05-29 04:11:32 +00:00			`FROM vimagick/scrapyd:py3`
			`MAINTAINER EasyPi Software Foundation`
add scrapyd-onbuild 2015-06-01 01:08:57 +00:00
			`ONBUILD ADD ./*.txt /etc/scrapyd/`
fix 2015-06-01 03:42:11 +00:00			`ONBUILD RUN cd /etc/scrapyd; \`
			`[ -f packages.txt -o -f dependencies.txt ] && apt-get update; \`
			`[ -f packages.txt ] && xargs -r apt-get install -y < packages.txt; \`
			`[ -f dependencies.txt ] && xargs -r apt-get install -y < dependencies.txt; \`
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> 2021-07-01 19:32:49 +00:00			`[ -f requirements.txt ] && pip install --no-cache-dir -r requirements.txt; \`
fix 2015-06-01 03:42:11 +00:00			`[ -f dependencies.txt ] && xargs -r apt-get purge -y --auto-remove < dependencies.txt; \`
			`[ -f packages.txt -o -f dependencies.txt ] && rm -rf /var/lib/apt/lists/*`