--- /dev/null
+#!/bin/sh
+
+: <<=cut
+
+=head1 NAME
+
+parse Chrony Tracking output for timeserver status information
+
+=head1 APPLICABLE SYSTEMS
+
+Any system with a local chronyd service.
+
+=head1 CONFIGURATION
+
+No configuration.
+
+=head1 MAGIC MARKERS
+
+ #%# family=auto
+ #%# capabilities=autoconf
+
+=head1 VERSION
+
+Revision 0.1 2008/08/23 13:06:00 joti
+
+ First version only chronyc tracking, autodetection included.
+
+Revision 0.2 2008/10/11 16:09:00 joti
+
+ Added scaling of other values to match with frequency, added more description to fields
+
+Revision 0.3 2014/02/16 zjttoefs
+
+ reduce forking by using awk
+ do not limit output precision
+ add stratum monitoring
+ detect slow/fast time or freqency and adjust sign of value accordingly
+ remove commented out code
+
+Revision 0.4 2016/11/10 Lars Kruse
+
+ rewrite field handling
+ use "which" for "chronyc" location
+ switch from "bash" to "sh"
+ fix exit code of failing "autoconf"
+
+=head1 AUTHOR
+
+ joti
+ zjttoefs
+ Lars Kruse <devel@sumpfralle.de>
+
+=cut
+
+CHRONYC="$(which chronyc | head -1)"
+
+# Frequency has extremely higher values than other. Therefore they are fitted by scaling via suitable factors.
+# field definitions:
+# - munin fieldname
+# - factor for graph visualization (all values are supposed to reach a similar dimension)
+# - regular expression of the chrony output line (may not contain whitespace, case insensitive)
+# - label (may include "%d" for including the factor; may contain whitespace)
+fields="stratum 1 ^Stratum Stratum
+ systime 1000 ^System.time System Time (x%d)
+ frequency 1 ^Frequency Frequency (ppm)
+ residualfreq 100 ^Residual.freq Residual Freq (ppm, x%d)
+ skew 100 ^Skew Skew (ppm, x%d)
+ rootdelay 1000 ^Root.delay Root delay (seconds, x%d)
+ rootdispersion 1000 ^Root.dispersion Root dispersion (seconds, x%d)"
+
+# chrony example output (v2.4.1):
+# Reference ID : 131.188.3.221 (ntp1.rrze.uni-erlangen.de)
+# Stratum : 2
+# Ref time (UTC) : Thu Nov 10 22:39:50 2016
+# System time : 0.000503798 seconds slow of NTP time
+# Last offset : +0.000254355 seconds
+# RMS offset : 0.002186779 seconds
+# Frequency : 17.716 ppm slow
+# Residual freq : +0.066 ppm
+# Skew : 4.035 ppm
+# Root delay : 0.042980 seconds
+# Root dispersion : 0.005391 seconds
+# Update interval : 258.4 seconds
+# Leap status : Normal
+
+
+if [ "$1" = "autoconf" ]; then
+ if [ -n "$CHRONYC" ] && [ -x "$CHRONYC" ]; then
+ echo yes
+ else
+ echo "no (missing 'chronyc' executable)"
+ fi
+ exit 0
+fi
+
+if [ "$1" = "config" ]; then
+ echo 'graph_title Chrony Tracking Stats'
+ echo 'graph_args --base 1000 -l 0'
+ echo 'graph_vlabel (seconds,ppm)'
+ echo 'graph_category time'
+ echo "$fields" | while read fieldname factor regex label; do
+ # insert the factor, if "%d" is part of the label
+ printf "${fieldname}.label $label\n" "$factor"
+ echo "${fieldname}.type GAUGE"
+ done
+ exit 0
+fi
+
+chrony_status="$("$CHRONYC" tracking)"
+echo "$fields" | while read fieldname factor regex label; do
+ status_line="$(echo "$chrony_status" | grep -i -- "$regex " | cut -d ":" -f 2-)"
+ if [ -z "$status_line" ]; then
+ value="U"
+ else
+ # the keyword "slow" indicates negative values
+ value="$(echo "$status_line" | awk '{ /slow/ ? SIGN=-1 : SIGN=1; print $1 * SIGN * '"$factor"' }')"
+ fi
+ echo "${fieldname}.value $value"
+done
# See the License for the specific language governing permissions and
# limitations under the License.
-require "socket"
+service "ntp" do
+ action [:stop, :disable]
+end
+
+package "ntp" do
+ action :purge
+end
+
+package "ntpdate" do
+ action :purge
+end
+
+if File.directory?("/etc/munin/plugins")
+ Dir.new("/etc/munin/plugins").each do |plugin|
+ next unless plugin.match?(/^ntp_/)
+
+ munin_plugin plugin do
+ action :delete
+ end
+ end
+end
package %w[
- ntp
- ntpdate
+ chrony
tzdata
]
end
link "/etc/localtime" do
- to "/usr/share/zoneinfo/#{node[:tz]}"
+ to "/usr/share/zoneinfo/#{node[:ntp][:tz]}"
owner "root"
group "root"
notifies :run, "execute[dpkg-reconfigure-tzdata]", :immediately
end
-service "ntp" do
- action [:enable, :start]
- supports :status => true, :restart => true
-end
-
-template "/etc/ntp.conf" do
- source "ntp.conf.erb"
+template "/etc/chrony/chrony.conf" do
+ source "chrony.conf.erb"
owner "root"
group "root"
mode 0o644
- notifies :restart, "service[ntp]"
+ notifies :restart, "service[chrony]"
end
-munin_plugins = %w[ntp_kernel_err ntp_kernel_pll_freq ntp_kernel_pll_off ntp_offset]
-
-munin_plugin "ntp_kernel_err"
-munin_plugin "ntp_kernel_pll_freq"
-munin_plugin "ntp_kernel_pll_off"
-munin_plugin "ntp_offset"
-
-if File.directory?("/etc/munin/plugins")
- Dir.new("/etc/munin/plugins").each do |plugin|
- next unless plugin.match(/^ntp_/) && !munin_plugins.include?(plugin)
-
- munin_plugin plugin do
- action :delete
- end
- end
+service "chrony" do
+ action [:enable, :start]
end
+
+munin_plugin "chrony"
--- /dev/null
+# DO NOT EDIT - This file is being maintained by Chef
+
+# Servers
+<% node[:ntp][:servers].each do |server| -%>
+pool <%= server %> iburst
+<% end -%>
+
+# This directive specify the location of the file containing ID/key pairs for
+# NTP authentication.
+keyfile /etc/chrony/chrony.keys
+
+# This directive specify the file into which chronyd will store the rate
+# information.
+driftfile /var/lib/chrony/chrony.drift
+
+# Uncomment the following line to turn logging on.
+#log tracking measurements statistics
+
+# Log files location.
+logdir /var/log/chrony
+
+# Stop bad estimates upsetting machine clock.
+maxupdateskew 100.0
+
+# This directive enables kernel synchronisation (every 11 minutes) of the
+# real-time clock. Note that it can’t be used along with the 'rtcfile' directive.
+rtcsync
+
+# Step the system clock instead of slewing it if the adjustment is larger than
+# one second, but only in the first three clock updates.
+makestep 1 3
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