Icinga2: added check for failed systemd units

icinga2/commands.d/check_systemd_units.conf

@@ -0,0 +1,12 @@
+object CheckCommand "systemd_units" {
+        import "plugin-check-command"
+
+        command = ["/usr/local/share/monitoring-plugins/check_systemd_units" ]
+
+        arguments = {
+                "-w" = {
+                        required = false
+                        value = "$whitelist$"
+                }
+        }
+}

icinga2/plugins/check_systemd_units

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Copyright (C) 2016 Mohamed El Morabity <melmorabity@fedoraproject.com>
+#
+# This module is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation, either version 3 of the License, or (at your option) any later
+# version.
+#
+# This software is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+PLUGINDIR=/usr/lib/nagios/plugins/
+. $PLUGINDIR/utils.sh
+
+
+status=$(systemctl list-units --failed --no-legend --plain | cut -f1 -d" " |xargs)
+r=$?
+
+while getopts "w" opt; do
+	case $opt in
+	w)
+		# Whitelist einlesen
+		readarray -t units < /etc/icinga2/service_whitelist
+	esac
+	status=( $(systemctl list-units --failed --no-legend --plain ${units[*]}| cut -f1 -d" " |xargs) )
+	r=$?
+done
+
+if [ $r -ne 0 ]; then
+	echo "UNKNOWN: Check command failed."
+	exit $STATE_UNKNOWN
+fi
+
+if [ -z "$status" ]; then
+	echo "OK: No Failed Units."
+	exit $STATE_OK
+else
+	echo "CRITICAL: Some units failed. ${status[*]}."
+	exit $STATE_CRITICAL
+fi
+
+echo "OK: service $service is running"
+exit $STATE_OK
+

icinga2/services/linux.conf

@@ -71,6 +71,23 @@ apply Service "load" {
 }
 
 
+apply Service "systemd_units" {
+	import "generic-service"
+
+	check_command = "systemd_units"
+
+	if (host.name != NodeName) {
+		command_endpoint = host.name
+	}
+
+	max_check_attempts = 5
+	retry_interval = 1m
+	check_interval = 5m
+
+	assign where host.address && host.vars.os == "Linux";
+}
+
+
 ################################################################################
 #               Checks for updates, newer kernels, libs, etc.                  #
 ################################################################################