1
0
mirror of https://github.com/systemd/systemd.git synced 2024-10-31 16:21:26 +03:00
systemd/units/systemd-networkd.service.in
Zbigniew Jędrzejewski-Szmek 21d0dd5a89 meson: allow WatchdogSec= in services to be configured
As discussed on systemd-devel [1], in Fedora we get lots of abrt reports
about the watchdog firing [2], but 100% of them seem to be caused by resource
starvation in the machine, and never actual deadlocks in the services being
monitored. Killing the services not only does not improve anything, but it
makes the resource starvation worse, because the service needs cycles to restart,
and coredump processing is also fairly expensive. This adds a configuration option
to allow the value to be changed. If the setting is not set, there is no change.

My plan is to set it to some ridiculusly high value, maybe 1h, to catch cases
where a service is actually hanging.

[1] https://lists.freedesktop.org/archives/systemd-devel/2019-October/043618.html
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1300212
2019-10-25 17:20:24 +02:00

59 lines
1.9 KiB
SYSTEMD

# SPDX-License-Identifier: LGPL-2.1+
#
# 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=Network Service
Documentation=man:systemd-networkd.service(8)
ConditionCapability=CAP_NET_ADMIN
DefaultDependencies=no
# systemd-udevd.service can be dropped once tuntap is moved to netlink
After=systemd-udevd.service network-pre.target systemd-sysusers.service systemd-sysctl.service
Before=network.target multi-user.target shutdown.target
Conflicts=shutdown.target
Wants=network.target
[Service]
AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE CAP_NET_BROADCAST CAP_NET_RAW
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE CAP_NET_BROADCAST CAP_NET_RAW
DeviceAllow=char-* rw
ExecStart=!!@rootlibexecdir@/systemd-networkd
LockPersonality=yes
MemoryDenyWriteExecute=yes
NoNewPrivileges=yes
ProtectControlGroups=yes
ProtectHome=yes
ProtectKernelModules=yes
ProtectSystem=strict
Restart=on-failure
RestartSec=0
RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6 AF_PACKET
RestrictNamespaces=yes
RestrictRealtime=yes
RestrictSUIDSGID=yes
RuntimeDirectory=systemd/netif
RuntimeDirectoryPreserve=yes
SystemCallArchitectures=native
SystemCallErrorNumber=EPERM
SystemCallFilter=@system-service
Type=notify
RestartKillSignal=SIGUSR2
User=systemd-network
@SERVICE_WATCHDOG@
[Install]
WantedBy=multi-user.target
Also=systemd-networkd.socket
Alias=dbus-org.freedesktop.network1.service
# We want to enable systemd-networkd-wait-online.service whenever this service
# is enabled. systemd-networkd-wait-online.service has
# WantedBy=network-online.target, so enabling it only has an effect if
# network-online.target itself is enabled or pulled in by some other unit.
Also=systemd-networkd-wait-online.service