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A tool for cleaning up temp and cache directories to make docker images smaller

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docker-cleanimage

A tool for cleaning up temp and cache directories to make docker images smaller

Installation procedures can produce a lot of logs and other cached files. This script attemts to clean up these files to make docker images a lot smaller.

Usage in Dockerfile

Download and install

ENV CLEANIMAGE_VERSION 2.0
ENV CLEANIMAGE_URL https://raw.githubusercontent.com/LolHens/docker-cleanimage/$CLEANIMAGE_VERSION/cleanimage

ADD ["$CLEANIMAGE_URL", "/usr/local/bin/"]
RUN chmod +x "/usr/local/bin/cleanimage"

Execute after each layer where necessary

RUN apt-get install -y \
      python3 \
 && cleanimage

Supported Applications

  • apt
  • yum
  • apk
  • pip

Commands

  • apt-get -y --purge autoremove
  • apt-get -y clean
  • yum clean all

Directories

  • /tmp/*
  • /var/cache/apk/*
  • /var/tmp/*
  • /var/lib/apt/lists/*
  • /var/log/alternatives.log
  • /var/log/apt/
  • /var/log/bootstrap.log
  • /var/log/btmp
  • /var/log/dpkg.log
  • /var/log/faillog
  • /var/log/fsck/
  • /var/log/lastlog
  • /var/log/wtmp
  • ~/.cache/pip
  • Files in /var/cache/

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A tool for cleaning up temp and cache directories to make docker images smaller

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