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Every package manager should clean up after themselves in order to keep docker layers neat and tiny: apt (Debian/Ubuntu package manager): - unneeded dependencies are cleared (autoremove) - caches are cleaned (clean) - package lists are deleted yum (CentOS package manager), zypper (OpenSuse package manager) - should clear caches after installing dependencies pip (Python package manager), apk (Alpine package manager) - should use no cache for installing dependencies
8 lines
213 B
Text
8 lines
213 B
Text
FROM ruby:2.4-alpine
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RUN apk add --update --no-cache build-base cmake git openssh-client
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# Set UTF-8 http://jaredmarkell.com/docker-and-locales/
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ENV LANG en_US.UTF-8
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ENV LANGUAGE en_US:en
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ENV LC_ALL en_US.UTF-8
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