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+{{tag> nagios kvm}}
+====== KVM-Hosts in Nagios anzeigen (über Nagios-nrpe) ======
+{{:anwenderwiki:nagios:nagios-kvm.jpg|}}
+Neues plugin **''check_kvm''**, Original von Karl Rink: [[http://exchange.nagios.org/directory/Plugins/Operating-Systems/*-Virtual-Environments/Others/check_kvm/details| download]]\\
+Muss zunächst auf deutsche Textausgabe angepasst werden.
+<code text check_kvm>
+#!/bin/sh
+# check_kvm - Check that a virtual machine is running.
+# Written by Karl Rink <krink@csun.edu>
+#
+#----------------------------------------------------------------------
+# COPYRIGHT    : 12.2010 California State University, Northridge
+#
+# AUTHOR       : Karl Rink
+#
+# BELONGS TO   : Qemu/Kvm Nagios Integration
+#
+# DESCRIPTION  : Runs "virsh list" and returns the available vms
+#
+# $Revision: 1.0 $
+#
+# Permission to use, copy, modify, distribute, and sell this software
+# and its documentation for any purpose is hereby granted without fee,
+# provided that the above copyright notice appear in all copies and that
+# both that copyright notice and this permission notice appear in
+# supporting documentation.
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHOR OR SUSE BE LIABLE FOR ANY CLAIM, DAMAGES
+# OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+# THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#----------------------------------------------------------------------
+# Install:  Put this script in nagios client directory libexec/check_kvm
+# As a nagios nrpe plugin, add the following line to your client nrpe.cfg
+# command[virt_check_kvm]=/opt/nagios/libexec/check_kvm
+# No sudo is necessary if you simply add nagios user to the libvirt group
+# libvirtd:x:118:nagios
+PATH=/bin:/usr/bin:/sbin:/usr/sbin
+export PATH
+LIST=$(virsh list --all | sed '1,2d' | sed '/^$/d'| awk '{print $2":"$3}')
+if [ ! "$LIST" ]; then
+  EXITVAL=3 #Status 3 = UNKNOWN (orange)
+  echo "Unknown guests"
+  exit $EXITVAL
+fi
+OK=0
+WARN=0
+CRIT=0
+NUM=0
+for host in $(echo $LIST)
+do
+  name=$(echo $host | awk -F: '{print $1}')
+  state=$(echo $host | awk -F: '{print $2}')
+  NUM=$(expr $NUM + 1)
+  case "$state" in
+    laufend) OK=$(expr $OK + 1) ;;
+    Ausgeschaltet) WARN=$(expr $WARN + 1) ;;
+    shutdown|shut*|crashed) CRIT=$(expr $CRIT + 1) ;;
+    *) CRIT=$(expr $CRIT + 1) ;;
+  esac
+done
+EXITVAL=0
+#if [ "$NUM" -eq "$OK" ]; then
+# EXITVAL=0 #Status 0 = OK (green)
+#fi
+#
+#if [ "$WARN" -gt 0 ]; then
+#  EXITVAL=1 #Status 1 = WARNING (yellow)
+#fi
+if [ "$CRIT" -gt 0 ]; then
+  EXITVAL=2 #Status 2 = CRITICAL (red)
+fi
+echo Hosts:$NUM Laufend:$OK Aus:$WARN CRIT:$CRIT - $LIST
+exit $EXITVAL
+</code>
+Das Plugin in **''/opt/nagios''** ablegen und die Befehlszeile in **''/etc/nagios/nrpe_local.cfg''** einfügen.
+  command[check_kvm]=sudo /opt/nagios/check_kvm
+Schließlich für sudo eine Datei anlegen: **''/etc/sudoers.d/nagios-kvm-suid''**:
+<code text nagios-kvm-suid>
+# /etc/sudoers.d/nagios-kvm-suid
+# MR 27.05.2013
+#
+Cmnd_Alias  NAGIOS_CHECKS2=/opt/nagios/check_kvm
+nagios ALL=NOPASSWD: NAGIOS_CHECKS2
+</code>
+Ggf. noch mit "visudo" das includedir aktivieren.

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