[systemd-devel] How to ensure a systemd unit waits for ntpd to sync before starting?

[Debraj Manna]

I do see a ntp-wait <goog_627709103>.
<https://linux.die.net/man/8/ntp-wait> Can
some one let me know what corresponding condition I should place in my
service unit file to wait for this?

On Tue, Apr 2, 2019 at 2:47 PM Debraj Manna <subharaj.manna at gmail.com>
wrote:

> Thanks for replying. Below is the service file for ntpd
>
> support at vrni-platform:/etc/init.d$ sudo systemctl cat ntp.service
> # /run/systemd/generator.late/ntp.service
> # Automatically generated by systemd-sysv-generator
>
> [Unit]
> Documentation=man:systemd-sysv-generator(8)
> SourcePath=/etc/init.d/ntp
> Description=LSB: Start NTP daemon
> Before=multi-user.target
> Before=multi-user.target
> Before=multi-user.target
> Before=graphical.target
> After=network-online.target
> After=remote-fs.target
> After=systemd-journald-dev-log.socket
> Wants=network-online.target
>
> [Service]
> Type=forking
> Restart=no
> TimeoutSec=5min
> IgnoreSIGPIPE=no
> KillMode=process
> GuessMainPID=no
> RemainAfterExit=yes
> ExecStart=/etc/init.d/ntp start
> ExecStop=/etc/init.d/ntp stop
>
>
>
> On Tue, Apr 2, 2019 at 1:48 PM Lennart Poettering <lennart at poettering.net>
> wrote:
>
>> On Di, 02.04.19 10:05, Reindl Harald (h.reindl at thelounge.net) wrote:
>>
>> > Am 02.04.19 um 09:44 schrieb Debraj Manna:
>> > >
>> > >   We have a service that starts at boot. We need to ensure it doesn't
>> > >   start until the system clock has been synchronized via ntp. The
>> > >   machines are using |ntpd|
>> >
>> > After=ntpd.service
>> > Wants=ntpd.service
>>
>> I don't know ntpd. But I surely hope that just starting ntpd will
>> delay boot-up until a sync is reached. If it does, then this would be
>> a bug and a misdesign in the ntpd unit files.
>>
>> (See my other mail how ntpd should do this correctly.)
>>
>> Lennart
>>
>> --
>> Lennart Poettering, Berlin
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>> systemd-devel at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/systemd-devel
>
>
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