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systemd/units/systemd-oomd.socket

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oom: Add support for user unit ManagedOOM property updates Compared to PID1 where systemd-oomd has to be the client to PID1 because PID1 is a more privileged process than systemd-oomd, systemd-oomd is the more privileged process compared to a user manager so we have user managers be the client whereas systemd-oomd is now the server. The same varlink protocol is used between user managers and systemd-oomd to deliver ManagedOOM property updates. systemd-oomd now sets up a varlink server that user managers connect to to send ManagedOOM property updates. We also add extra validation to make sure that non-root senders don't send updates for cgroups they don't own. The integration test was extended to repeat the chill/bloat test using a user manager instead of PID1.
2021-09-09 16:12:55 +01:00
# 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
unit: add conditions and deps to make oomd.socket and .service consistent Fixes #27690.
2023-05-19 04:47:34 +09:00
Before=sockets.target shutdown.target
Conflicts=shutdown.target
ConditionControlGroupController=v2
ConditionControlGroupController=memory
ConditionPathExists=/proc/pressure/cpu
ConditionPathExists=/proc/pressure/io
ConditionPathExists=/proc/pressure/memory
oom: Add support for user unit ManagedOOM property updates Compared to PID1 where systemd-oomd has to be the client to PID1 because PID1 is a more privileged process than systemd-oomd, systemd-oomd is the more privileged process compared to a user manager so we have user managers be the client whereas systemd-oomd is now the server. The same varlink protocol is used between user managers and systemd-oomd to deliver ManagedOOM property updates. systemd-oomd now sets up a varlink server that user managers connect to to send ManagedOOM property updates. We also add extra validation to make sure that non-root senders don't send updates for cgroups they don't own. The integration test was extended to repeat the chill/bloat test using a user manager instead of PID1.
2021-09-09 16:12:55 +01:00
[Socket]
oomd: correct listening sockets So, unfortunately oomd uses "io.system." rather than "io.systemd." as prefix for its sockets. This is a mistake, and doesn't match the Varlink interface naming or anything else in oomd. hence, let's fix that. Given that this is an internal protocol between PID1 and oomd let's simply change this without retaining compat.
2023-09-25 18:10:50 +02:00
ListenStream=/run/systemd/oom/io.systemd.ManagedOOM
oom: Add support for user unit ManagedOOM property updates Compared to PID1 where systemd-oomd has to be the client to PID1 because PID1 is a more privileged process than systemd-oomd, systemd-oomd is the more privileged process compared to a user manager so we have user managers be the client whereas systemd-oomd is now the server. The same varlink protocol is used between user managers and systemd-oomd to deliver ManagedOOM property updates. systemd-oomd now sets up a varlink server that user managers connect to to send ManagedOOM property updates. We also add extra validation to make sure that non-root senders don't send updates for cgroups they don't own. The integration test was extended to repeat the chill/bloat test using a user manager instead of PID1.
2021-09-09 16:12:55 +01:00
SocketMode=0666
[Install]
WantedBy=sockets.target
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