143 lines
2.8 KiB
Bash
Executable File
143 lines
2.8 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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munin_events - Plugin to monitor munin updates
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=head1 APPLICABLE SYSTEMS
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All systems with "bash", "logtail" and "munin"
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=head1 CONFIGURATION
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The following is the default configuration
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[munin_events]
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user munin
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env.muninupdate /var/log/munin/munin-update.log
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env.logtail2 /usr/sbin/logtail2
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You could trigger alerts on update failures
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[munin_events]
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env.munin_fatal_critical 0
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env.munin_error_critical 0
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env.munin_warning_warning 0
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env.munin_warning_critical 5
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=head1 INTERPRETATION
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This plugin shows a graph with one line per munin state:
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INFO, WARNING, ERROR, FATAL.
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=head1 MAGIC MARKERS
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#%# family=auto
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#%# capabilities=autoconf
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=head1 VERSION
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1.2.20160514
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=head1 AUTHOR
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Viktor Szépe <viktor@szepe.net>
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=head1 LICENSE
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GPLv2
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=cut
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##############################
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# Includes
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# shellcheck disable=SC1090
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. "$MUNIN_LIBDIR/plugins/plugin.sh"
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##############################
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# Configurable variables
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muninupdate=${muninupdate:-/var/log/munin/munin-update.log}
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logtail_bin=${logtail_bin:-/usr/sbin/logtail2}
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##############################
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# Functions
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# Print one value
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do_value() {
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FIELD="$1"
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EVENT_LABEL="$2"
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EVENT_COUNT="$("$logtail_bin" -t "$muninupdate" 2> /dev/null | grep -c '^[0-9/: ]\{19\} \['"${EVENT_LABEL}"'\]')"
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if echo "$EVENT_COUNT" | grep -q "[^0-9]"; then
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echo "Cannot determine event count" 1>&2
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exit 10
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fi
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echo "${FIELD}.value ${EVENT_COUNT}"
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}
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# Print the munin values
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values() {
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do_value 'munin_info' 'INFO'
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do_value 'munin_warning' 'WARNING'
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do_value 'munin_error' 'ERROR'
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do_value 'munin_fatal' 'FATAL'
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# Set offset
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"$logtail_bin" "$muninupdate" > /dev/null 1>&2
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chmod 640 "${muninupdate}.offset"
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}
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# Print the munin config
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config() {
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echo 'graph_title Munin update events groupped by log levels'
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echo 'graph_info This graph shows INFO, WARNING, ERROR and FATAL events'
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echo 'graph_category munin'
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echo 'graph_vlabel Number of events'
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echo 'graph_args --base 1000 -l 0'
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echo 'graph_total total'
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echo 'graph_printf %6.0lf'
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echo 'munin_info.label INFO'
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print_warning munin_info
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print_critical munin_info
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echo 'munin_warning.label WARNING'
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print_warning munin_warning
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print_critical munin_warning
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echo 'munin_error.label ERROR'
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print_warning munin_error
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print_critical munin_error
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echo 'munin_fatal.label FATAL'
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print_warning munin_fatal
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print_critical munin_fatal
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}
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# Print autoconfiguration hint
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autoconf() {
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if [ -r "${muninupdate}" ] && [ -x "$logtail_bin" ]; then
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echo "yes"
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else
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echo "missing (${muninupdate} or (${logtail_bin})"
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fi
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exit
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}
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##############################
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# Main
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case "$1" in
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config)
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config
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;;
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autoconf)
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autoconf
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;;
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*)
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values
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;;
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esac
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