tianzichenone / merge-tree

Merge Tree Project

used to learn how overlayfs metadata merge, include handing docker oci and overlayfs whiteout file

run test, we should create overlayfs whiteout file

make gen_overlayfs_test or next steps

cargo test overlayfs whiteout

mkdir -p ./example7/upper-dir/a mkdir -p ./example7/upper-dir/b

cd ./example7/upper-dir/a mknod file1 c 0 0

cd ./example7/upper-dir/b mknod file2 c 0 0

cargo test overlayfs opaque

mkdir -p ./example8/upper-dir/a mkdir -p ./example8/upper-dir/b mkdir -p ./example8/upper-dir/c

cd ./example8/upper-dir/a mknod file1 c 0 0

cd ./example8/upper-dir/b mknod file2 c 0 0

cd ./example8/upper-dir/ setfattr -n "trusted.overlay.opaque" -v y c/

build

make docker_static_release

test

make test

make docker_test

use

oci whiteout

merge-tree -b ./base -u ./upper1 -u ./upper2 -u ./upper3

overlay whiteout

merge-tree -b ./base -u ./upper1 -u ./upper2 -u ./upper3 -w 1