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02.Version cache - docker cache build framework (#12001)

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During docker build, host files can be passed to the docker build through
docker context files. But there is no straightforward way to transfer
the files from docker build to host.

This feature provides a tricky way to pass the cache contents from docker
build to host. It tar's the cached content and encodes them as base64 format
and passes it through a log file with a special tag as 'VCSTART and VCENT'.

Slave.mk in the host, it extracts the cache contents from the log and stores them
in the cache folder. Cache contents are encoded as base64 format for
easy passing.

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This commit is contained in:
Kalimuthu-Velappan
2022-12-02 05:58:45 +05:30
committed by GitHub
parent 7a0152ad15
commit aaeafa8411
11 changed files with 82 additions and 16 deletions
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4
scripts/collect_host_image_version_files.sh
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@@ -3,11 +3,13 @@
TARGET=$1
FILESYSTEM_ROOT=$2
VERSIONS_PATH=$TARGET/versions/host-image
IMAGENAME="host-image"
[ -d $VERSIONS_PATH ] && sudo rm -rf $VERSIONS_PATH
mkdir -p $VERSIONS_PATH
sudo LANG=C chroot $FILESYSTEM_ROOT post_run_buildinfo
mkdir -p target/vcache/${IMAGENAME}
sudo LANG=C chroot $FILESYSTEM_ROOT post_run_buildinfo ${IMAGENAME}
cp -r $FILESYSTEM_ROOT/usr/local/share/buildinfo/pre-versions $VERSIONS_PATH/
cp -r $FILESYSTEM_ROOT/usr/local/share/buildinfo/post-versions $VERSIONS_PATH/