From 520ed18f40df20ab2014fbbfb411e2641ed58345 Mon Sep 17 00:00:00 2001
From: Andreas Kempe <kempe@lysator.liu.se>
Date: Thu, 14 Apr 2022 19:15:34 +0200
Subject: [PATCH] ntp_server: add class for configuring the NTP server
Configures chrony and gpsd to use the GPS on /dev/ttyS0 and the PPS on
/dev/pps0.
---
files/chrony/chrony.conf | 26 ++++++++++++++++++++++++++
files/gpsd/conf | 3 +++
manifests/ntp_server.pp | 39 +++++++++++++++++++++++++++++++++++++++
3 files changed, 68 insertions(+)
create mode 100644 files/chrony/chrony.conf
create mode 100644 files/gpsd/conf
create mode 100644 manifests/ntp_server.pp
diff --git a/files/chrony/chrony.conf b/files/chrony/chrony.conf
new file mode 100644
index 0000000..00ea774
--- /dev/null
+++ b/files/chrony/chrony.conf
@@ -0,0 +1,26 @@
+# NOTE: This file is managed by the timehost::ntp_server puppet class.
+# Use public NTP servers from the pool.ntp.org project.
+#pool pool.ntp.org iburst
+
+# Backup ntp.se Stockholm servers.
+server sth1.ntp.se
+server sth2.ntp.se
+server sth3.ntp.se
+server sth4.ntp.se
+
+# Record the rate at which the system clock gains/losses time.
+driftfile /var/lib/chrony/drift
+
+# Allow the system clock to be stepped in the first three updates
+# if its offset is larger than 1 second.
+makestep 1.0 3
+
+# Enable kernel synchronization of the real-time clock (RTC).
+rtcsync
+
+bindaddress 130.236.254.17
+bindaddress 2001:6b0:17:f0a0::11
+allow
+
+refclock SHM 0 refid GPS precision 1e-1 offset 0.9999
+refclock SHM 2 refid PPS precision 1e-7
diff --git a/files/gpsd/conf b/files/gpsd/conf
new file mode 100644
index 0000000..156d25b
--- /dev/null
+++ b/files/gpsd/conf
@@ -0,0 +1,3 @@
+# NOTE: This file is managed by the timehost::ntp_server class.
+DEV="/dev/ttyS0 /dev/pps0"
+OPTS="-n"
diff --git a/manifests/ntp_server.pp b/manifests/ntp_server.pp
new file mode 100644
index 0000000..5f0bb21
--- /dev/null
+++ b/manifests/ntp_server.pp
@@ -0,0 +1,39 @@
+# NTP server configuration.
+class timehost::ntp_server {
+ package {
+ [
+ 'chrony',
+ 'gpsd',
+ ]:
+ ensure => installed,
+ }
+
+ service { 'gpsd':
+ ensure => running,
+ enable => true,
+ }
+
+ file { '/etc/sv/gpsd/conf':
+ ensure => present,
+ source => 'puppet:///modules/timehost/gpsd/conf',
+ owner => 'root',
+ group => 'root',
+ mode => '0644',
+ notify => Service['gpsd'],
+ }
+
+ service { 'chronyd':
+ ensure => running,
+ enable => true,
+ notify => Service['gpsd'],
+ }
+
+ file { '/etc/chrony.conf':
+ ensure => present,
+ source => 'puppet:///modules/timehost/chrony/chrony.conf',
+ owner => 'root',
+ group => 'root',
+ mode => '0644',
+ notify => Service['chronyd'],
+ }
+}
--
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