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anwenderwiki:nagios:nagios-kvm [2013/05/28 20:56] (aktuell)
Zeile 1: Zeile 1:
 +{{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.
 [[anwenderwiki:nagios:nagios-kvm]] anwenderwiki/nagios/nagios-kvm.txt · Zuletzt geändert: 2013/05/28 20:56 (Externe Bearbeitung)