docker build --cgroup-parent=/foo doesn't work #34469
Description
Docker version 17.05
--cgroup-parent only works in docker run, not in docker build
My dockerfile
FROM ubuntu:16.04`
docker build -t my_test --cgroup-parent=/foo
docker run -it my_test cat /proc/self/cgroup
...
2:memory:/docker/f0d6c251b55ac04d5f83473d93d4fb1184c94894f133f7568a8b9657adeaf413
1:name=systemd:/docker/f0d6c251b55ac04d5f83473d93d4fb1184c94894f133f7568a8b9657adeaf413docker run -it --cgroup-parent=/bar my_test cat /proc/self/cgroup
...
2:memory:/bar/bc2132fec04b3968deb6360f65e8867c25c58a6abdfc7e648f7f2898363fd436
1:name=systemd:/bar/bc2132fec04b3968deb6360f65e8867c25c58a6abdfc7e648f7f2898363fd436