86 lines
1.4 KiB
Bash
Executable File
86 lines
1.4 KiB
Bash
Executable File
#! /bin/sh
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# -*- sh -*-
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: <<=cut
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=head1 NAME
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ntp_drift - Munin plugin to monitor the NTP drift value.
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=head1 APPLICABLE SYSTEMS
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Any ntpd host.
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=head1 CONFIGURATION
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The following configuration parameters are used by this plugin:
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[ntp_drift]
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env.driftfile - Path to driftfile.
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=head2 DEFAULT CONFIGURATION
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[ntp_drift]
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env.driftfile "/var/lib/ntp/ntp.drift"
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=head1 USAGE
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Link this plugin to /etc/munin/plugins/ and restart the munin-node.
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=head1 AUTHOR
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HORINOUCHI Masato <thermes+github@confei.to> 2019-07-16
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=head1 LICENSE
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Same as munin.
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=head1 MAGIC MARKERS
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#%# family=auto
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#%# capabilities=autoconf
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=cut
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driftfile=${driftfile:-'/var/lib/ntp/ntp.drift'}
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do_autoconf () {
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if [ -r "$driftfile" ]; then
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echo "yes"
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else
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echo "no (could not read driftfile '$driftfile'.)"
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fi
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}
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do_config () {
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cat <<'EOM'
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graph_title NTP drift
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graph_args --base 1000
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graph_vlabel Parts Per Million
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graph_category time
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drift.label Frequency Offset
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graph_info The frequency of the local clock oscillator. A single floating point number, which records the frequency offset measured in parts-per-million (PPM).
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EOM
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}
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do_ () {
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if [ -r "$driftfile" ]; then
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echo "drift.value $(cat "$driftfile")"
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else
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echo "drift.value U"
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fi
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}
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case $1 in
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autoconf|config|'')
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do_"$1"
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;;
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*)
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echo "Don't know how to do that" >&2
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exit 1
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;;
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esac
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