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systemd/units/systemd-timesyncd.service.in
Kay Sievers 4b16233e59 timesyncd: enable timesyncd in virtual machines
On Fri, Mar 13, 2015 at 8:25 PM, Michael Marineau <michael.marineau@coreos.com> wrote:
> Currently systemd-timesyncd.service includes
> ConditionVirtualization=no, disabling it in both containers and
> virtual machines. Each VM platform tends to deal with or ignore the
> time problem in their own special ways, KVM/QEMU has the kernel time
> source kvm-clock, Xen has had different schemes over the years, VMware
> expects a userspace daemon sync the clock, and other platforms are
> content to drift with the wind as far as I can tell.
>
> I don't know of a robust way to know if a platform needs a little
> extra help from userspace to keep the clock sane or not but it seems
> generally safer to try than to risk drifting. Does anyone know of a
> reason to leave timesyncd off by default? Otherwise switching to
> ConditionVirtualization=!container should be reasonable.
2015-03-15 19:44:59 +01:00

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SYSTEMD

# 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 Time Synchronization
Documentation=man:systemd-timesyncd.service(8)
ConditionCapability=CAP_SYS_TIME
ConditionVirtualization=!container
DefaultDependencies=no
RequiresMountsFor=/var/lib/systemd/clock
After=systemd-remount-fs.service systemd-tmpfiles-setup.service systemd-sysusers.service
Before=time-sync.target sysinit.target shutdown.target
Conflicts=shutdown.target
Wants=time-sync.target
[Service]
Type=notify
Restart=always
RestartSec=0
ExecStart=@rootlibexecdir@/systemd-timesyncd
CapabilityBoundingSet=CAP_SYS_TIME CAP_SETUID CAP_SETGID CAP_SETPCAP CAP_CHOWN CAP_DAC_OVERRIDE CAP_FOWNER
PrivateTmp=yes
PrivateDevices=yes
ProtectSystem=full
ProtectHome=yes
WatchdogSec=1min
[Install]
WantedBy=sysinit.target