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1590461887
- most nixos user only require time synchronisation, while ntpd implements a battery-included ntp server (1,215 LOCs of C-Code vs 64,302) - timesyncd support ntp server per interface (if configured through dhcp for instance) - timesyncd is already included in the systemd package, switching to it would save a little disk space (1,5M)
46 lines
1.1 KiB
Nix
46 lines
1.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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{
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options = {
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services.timesyncd = {
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enable = mkOption {
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default = !config.boot.isContainer;
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type = types.bool;
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description = ''
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Enables the systemd NTP client daemon.
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'';
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};
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servers = mkOption {
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default = config.networking.timeServers;
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description = ''
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The set of NTP servers from which to synchronise.
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'';
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};
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};
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};
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config = mkIf config.services.timesyncd.enable {
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systemd.additionalUpstreamSystemUnits = [ "systemd-timesyncd.service" ];
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systemd.services.systemd-timesyncd = {
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wantedBy = [ "sysinit.target" ];
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restartTriggers = [ config.environment.etc."systemd/timesyncd.conf".source ];
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};
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environment.etc."systemd/timesyncd.conf".text = ''
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[Time]
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NTP=${concatStringsSep " " config.services.ntp.servers}
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'';
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users.extraUsers.systemd-timesync.uid = config.ids.uids.systemd-timesync;
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users.extraGroups.systemd-timesync.gid = config.ids.gids.systemd-timesync;
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};
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}
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