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'apt-get clean' doesn't clear out /var/lib/apt/lists. It removes cached downloaded debs from /var/cacpt/apt but you'll still have hundreds of MiB of package lis

• e12e 4y ago
  Yes, but apt-get clean is still redundant [ed: because the upstream Debian/Ubuntu images automatically runs apt-clean via how dpkg/apt is configured - and your image should inherit this behavior]. Personally I'm not a fan of deleting random files like man pages and documentation - so instead of: RUN apt-get update -qq && \ apt-get install -y build-essential libvips && \ apt-get clean && \ rm -rf /var/lib/apt/lists/* /usr/share/doc /usr/share/man I'd do: RUN apt-get update -qq && \ apt-get install -y build-essential libvips && \ rm -rf /var/lib/apt/lists/*
  • cvccvroomvroom 4y ago
    Not a fan of violently modifying the system outside of the package manager either. rm -rf isn't configuration management, it's system entropy increasing leaving users scrambling to reinstall the world. If people don't want docs, then distro vendors should package them separately and make them recommended packages.
    • e12e 4y ago
      Indeed. If you want a small image, there's "slim" and "alpine" variants.
• cvccvroomvroom 4y ago
  As I mentioned above, I recommend avoiding Ubuntu because it violates the principle of dev - prod parity. For any significant scale, Ubuntu will be left in the dust. Don't rely on system packages, build your own stream of minimal vendored (/opt/company) dependencies and keep them current because defaults are always old and don't consistently apply necessary patches for bugfixes and functionality. https://quay.io/repository/centos/centos https://quay.io/repository/centos/centos
  • POPOSYS 4y ago
    Please explain "I recommend avoiding Ubuntu because it violates the principle of dev - prod parity." What exactly is the problem? Would you please like to provide sources to this issue / some explanation / any helpful content? THANKS!