feat: put big files in own layers

Author: renner0e

build_files/base/20-layer-definitions.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/bash
+
+echo "::group:: ===$(basename "$0")==="
+
+# to reduce the indiviual layer size we put big files that are not shipped with RPMs in their own layers
+# See: https://coreos.github.io/rpm-ostree/build-chunked-oci/
+
+setfattr -n user.component -v "homebrew" /usr/share/homebrew.tar.zst
+setfattr -n user.component -v "starship" /usr/bin/starship
+setfattr -n user.component -v "nerd-fonts" /usr/share/fonts/nerd-fonts
+
+echo "::endgroup::"

build_files/base/20-tests.sh build_files/base/21-tests.shbuild_files/base/20-tests.sh renamed to build_files/base/21-tests.sh

@@ -63,5 +63,8 @@ fi
 # Clean Up
 /ctx/build_files/shared/clean-stage.sh
 
+# Set filesystem properties for rechunker
+/ctx/build_files/base/20-layer-definitions.sh
+
 # Simple Tests
-/ctx/build_files/base/20-tests.sh
+/ctx/build_files/base/21-tests.sh