Munin contributed plugins

#!/bin/sh

# -*- sh -*-

: << =cut

=head1 NAME

systemd - Plugin to monitor systemd units state

=head1 APPLICABLE SYSTEMS

Linux systems with systemd installed.

=head1 CONFIGURATION

None needed.

=head1 AUTHOR

Olivier Mehani <shtrom+munin@ssji.net>

=head1 LICENSE

GPLv2

=head1 MAGIC MARKERS

 #%# family=auto

 #%# capabilities=autoconf

=cut

states="active \

	reloading \

	inactive \

	failed \

	activating \

	deactivating"

autoconf() {

	which systemctl >/dev/null && \

	       systemctl  --state=failed --no-pager --no-legend	>/dev/null 2>&1 && echo yes || echo "no (No systemctl or error running it)"

}

config () {

	cat << EOF

graph_title Systemd units state

graph_args -l 0

graph_category system

graph_scale no

graph_vlabel units

EOF

	for state in $states; do

		echo "$state.label $state"

		echo "$state.draw AREASTACK"

		if [ $state = failed ]; then

			echo "$state.warning 0"

			echo "$state.critical 10"

		fi

	done

}

fetch () {

	case $1 in

		"units")

			tmp=`mktemp -t munin-systemd.XXXXXX`

			systemctl --no-pager --no-legend --all | awk '{print $1, $3}' > $tmp

			for state in \

				$states ; do

				echo -n "$state.value "

				grep $state$ $tmp | wc -l

				extinfo=`grep $state$ $tmp | cut -d " " -f 1`

				if [ "$extinfo" ]; then

					echo "$state.extinfo" $extinfo

				fi

			done

			rm $tmp

			;;

		"*")

			echo "$0: unknown mode '$1'" >&2

			exit 1

	esac

}

# mode=`echo $0 | sed 's/.*_//'`

mode=units

case $1 in

	"autoconf")

		autoconf

		;;

	"config")

		config $mode

		;;

	*)

		fetch $mode

		;;

esac