PERF: Reduce compressed base image size by ~68MB (~5%) - #1116
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PERF: Reduce compressed base image size by ~68MB (~5%)#1116davidtaylorhq wants to merge 1 commit into
davidtaylorhq wants to merge 1 commit into
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- ~19MB - Mount tmpfs when installing nginx. Matches other apt steps in the docker file - Same for postgres/redis, so that the 19MB doesn't move to their layer - ~6MB - Mount tmpfs over /root/.cache when installing pups. `gem fetch` downloads the whole RubyGems spec index - ~43MB - Set `install_extension_in_lib: false` in gemrc. By default RubyGems stores every compiled gem extension twice: once in extensions/ and again in the gem's own lib/. The extensions/ copy is the one that is actually used. This is planned to become the RubyGems 4 default: ruby/rubygems#8921 - Pass `--package-import-method hardlink` to pnpm install. This does not change the size of our CI builds, which already hardlink. But it stops pnpm using reflinks on supported filesystems (btrfs, XFS, OrbStack). If reflinks are used, they are lost during the packaging process, so we silently double the cost of node_modules.
davidtaylorhq
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August 20, 2026 08:24
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~19MB - Mount tmpfs when installing nginx. Matches other apt steps in the docker file
Same for postgres/redis, so that the 19MB doesn't move to their layer
~6MB - Mount tmpfs over /root/.cache when installing pups.
gem fetchdownloads the whole RubyGems spec index~43MB - Set
install_extension_in_lib: falsein gemrc. By default RubyGems stores every compiled gem extension twice: once in extensions/ and again in the gem's own lib/. The extensions/ copy is the one that is actually used. This is planned to become the RubyGems 4 default: Road to RubyGems 4 ruby/rubygems#8921Pass
--package-import-method hardlinkto pnpm install. This does not change the size of our CI builds, which already hardlink. But it stops pnpm using reflinks on supported filesystems (btrfs, XFS, OrbStack). If reflinks are used, they are lost during the packaging process, so we silently double the cost of node_modules.