Set `UsernsMode="host"` only when the daemon is running in userns-remapping mode.
Fix issue 561
The issue will be also fixed in moby/moby PR 43084 (Docker 20.10.13).
This buildx PR helps users of old releases of Docker.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
(cherry picked from commit 5f8600f09865ece328641f965e1e8af65dd37ba1)
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
This allows the parent cgroup to be customised, which allows resource
limits to be imposed on build containers separately from "user"
containers.
Signed-off-by: David Scott <dave@recoil.org>
