systemd/units/systemd-oomd.socket

#  SPDX-License-Identifier: LGPL-2.1-or-later
#
#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.

[Unit]
Description=Userspace Out-Of-Memory (OOM) Killer Socket
Documentation=man:systemd-oomd.service(8)
DefaultDependencies=no
Before=sockets.target shutdown.target
Conflicts=shutdown.target
ConditionControlGroupController=v2
ConditionControlGroupController=memory
ConditionPathExists=/proc/pressure/cpu
ConditionPathExists=/proc/pressure/io
ConditionPathExists=/proc/pressure/memory

[Socket]
ListenStream=/run/systemd/oom/io.system.ManagedOOM
SocketMode=0666

[Install]
WantedBy=sockets.target