[20.10 backport] hack/dind: fix cgroup v2 evacuation with docker run --init#42342
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Evacuate all the processes in `/sys/fs/cgroup/cgroup.procs`, not just PID 1. Before: ```console $ docker run --rm --privileged --init $(docker build -q .) cat /sys/fs/cgroup/cgroup.subtree_control sed: couldn't flush stdout: Device or resource busy ``` After: ```console $ docker run --rm --privileged --init $(docker build -q .) cat /sys/fs/cgroup/cgroup.subtree_control cpuset cpu io memory hugetlb pids rdma ``` Fix docker-library/docker issue 308 Signed-off-by: Akihiro Suda <[email protected]> (cherry picked from commit 42b1175) Signed-off-by: Akihiro Suda <[email protected]>
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Cherry-pick #42331
- What I did
Fix docker-library/docker#308
- How I did it
Evacuate all the processes in
/sys/fs/cgroup/cgroup.procs, not just PID 1.- How to verify it
Before:
After: