We need to add delegate yes to docker's service file so that it can
manage the cgroups of the processes that it launches without systemd
interfering with them and moving the processes after it is reloaded.
Delegate=
Turns on delegation of further resource control partitioning to
processes of the unit. For unprivileged services (i.e. those
using the User= setting), this allows processes to create a
subhierarchy beneath its control group path. For privileged
services and scopes, this ensures the processes will have all
control group controllers enabled.
This is the proper fix for issue moby/moby#20152
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit e134e666a585b1f13e9e5e371dd93e5ce04a4b34)
Signed-off-by: Eli Uriegas <eli.uriegas@docker.com>
Upstream-commit: 1120496ca0492d29731befd1460a934ac115e7f8
Component: packaging
32fc71f155