From c5beecca19f02cc81408d2ed942d96f9724091d5 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 22 Mar 2018 21:41:54 +0100 Subject: [PATCH] units: document why systemd-time-wait-sync.service conditions on CAP_SYS_TIME (#8555) As requested by @evverx in https://github.com/systemd/systemd/pull/8537#issuecomment-375122615 --- units/systemd-time-wait-sync.service.in | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/units/systemd-time-wait-sync.service.in b/units/systemd-time-wait-sync.service.in index bed4177916..475182d6bc 100644 --- a/units/systemd-time-wait-sync.service.in +++ b/units/systemd-time-wait-sync.service.in @@ -10,8 +10,17 @@ [Unit] Description=Wait Until Kernel Time Synchronized Documentation=man:systemd-time-wait-sync.service(8) + +# Note that this tool doesn't need CAP_SYS_TIME itself, but it's primary +# usecase is to run in conjunction with a local NTP service such as +# systemd-timesyncd.service, which is conditioned this way. There might be +# niche usecases where running this service independently is desired, but let's +# make this all "just work" for the general case, and leave it to local +# modifications to make it work in the remaining cases. + ConditionCapability=CAP_SYS_TIME ConditionVirtualization=!container + DefaultDependencies=no Before=time-sync.target shutdown.target Wants=time-sync.target