Voir :

• https://github.com/centreon/centreon-plugins
• https://docs-older.centreon.com/docs/centreon-plugins/en/latest/user/guide.html
• https://archives.sugarbug.fr/atelier/techniques/plugins/plugins_centreon/

Configure those extra SNMP options in the host/host template configuration in the SNMPEXTRAOPTIONS macro.

On lance une fois cpan pour le configurer

cpan
 
# On ferme la session puis on la reouvre pour sourcer le .bashrc
exit
 
# Ou
source ~/.bashrc

cpan common/sense.pm
cpan Types/Serialiser.pm
cpan JSON
 
# Pour la commande net-snmp-config necessaire à cpan SNMP
#sudo apt-get install libsnmp-dev
#sudo yum install net-snmp
 
cpan SNMP

Le plugin a besoin de pouvoir écrire

mkdir -p /var/lib/centreon/centplugins
chown nagios: /var/lib/centreon/ /var/lib/centreon/centplugins/
chmod 1777 /var/lib/centreon/centplugins/

./centreon_plugins.pl --list-plugin
./centreon_plugins.pl --list-plugin | grep ^PLUGIN | grep -i snmp | grep -i linux 
 
./centreon_plugins.pl --plugin os::linux::snmp::plugin
./centreon_plugins.pl --plugin os::linux::snmp::plugin --help
./centreon_plugins.pl --plugin os::linux::snmp::plugin --list-mode
./centreon_plugins.pl --plugin os::linux::snmp::plugin --memory
./centreon_plugins.pl --plugin os::linux::snmp::plugin --mode memory
./centreon_plugins.pl --plugin os::linux::snmp::plugin --mode memory --hostname localhost
./centreon_plugins.pl --plugin os::linux::snmp::plugin --mode memory --hostname localhost --help

./centreon_plugins.pl --plugin os::linux::snmp::plugin --mode memory --hostname localhost --snmp-version='3' --authpassphrase P@ssw0rd --snmp-username nagios --authprotocol MD5
OK: Ram Total: 15.25 GB Used (-buffers/cache): 1.95 GB (12.81%) Free: 13.30 GB (87.19%), Buffer: 94.79 MB, Cached: 2.05 GB, Shared: 555.96 MB | 'used'=2097471488B;;;0;16376958976 'free'=14279487488B;;;0;16376958976 'used_prct'=12.81%;;;0;100 'buffer'=99397632B;;;0; 'cached'=2202296320B;;;0; 'shared'=582967296B;;;0;

Exemple avec Fortigate

src/centreon_plugins.pl --plugin=network::fortinet::fortigate::snmp::plugin --mode=cluster-status --hostname=firewall --snmp-version='2c' --snmp-community='public'  --warning-status='%{role} !~ /master|slave/' --critical-status='%{sync_status} !~ /^synchronized/' --opt-exit warning --verbose --critical-total-nodes=2

Exemple conf Nagios

commands.cfg

define command{
        command_name    check_centreon_snmp_linux_disk_all
        command_line    $USER1$/centreon_plugins --plugin=os::linux::snmp::plugin --mode=storage --hostname=$HOSTADDRESS$ --snmp-version=3 --snmp-username "$USER6$" --authprotocol MD5 --authpassphrase "$USER7$" --filter-storage-type=hrStorageFixedDisk --add-access --critical-access=readOnly --warning-usage $ARG1$ --critical-usage $ARG2$ --name --regexp --storage='^((?!cdrom).)*$'
        }

mode multi

./centreon_plugins.pl --plugin=os::linux::snmp::plugin --hostname=localhost --snmp-version=3 --snmp-username "nagios" --authprotocol MD5 --authpassphrase "P@ssw0rd" --mode multi --modes-exec 'uptime,memory,swap,cpu'

Dans notre cas les plugins sont tous dans /usr/local/nagios/libexec/ mais si on fait un lien symbolique ln -s /usr/local/nagios/libexec/centreon-plugins-develop/src/centreon_plugins /usr/local/nagios/libexec/ ça ne fonctionne pas.

D'où ce petit wrapper.

centreon_plugins

#! /bin/bash
set -euo pipefail
 
SCRIPT_DIR=$(readlink -m "$(dirname "$0")")
cd "${SCRIPT_DIR}/centreon-plugins-develop/src/" || exit 2
 
export PERL5LIB="/usr/local/nagios/lib/perl5/site_perl/5.8.8:/usr/local/nagios/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi"
exec perl ./centreon_plugins.pl "$@"

Exemple :

$CENTREONPLUGINS$/centreon_plugins --plugin=network::fortinet::fortigate::snmp::plugin --hostname=$HOSTADDRESS$ --snmp-version='$_HOSTSNMPVERSION$' --snmp-community='$_HOSTSNMPCOMMUNITY$' --mode=cluster-status --warning-status='%{role} !~ /master|slave/' --critical-status='%{sync_status} !~ /^synchronized/' --opt-exit warning --critical-total-nodes=2 $_HOSTSNMPEXTRAOPTIONS$

$ rpm -qf /usr/lib/centreon/plugins/centreon_linux_snmp.pl
centreon-plugin-Operatingsystems-Linux-Snmp-20241107-152627.el8.noarch

/usr/lib/centreon/plugins/centreon_linux_snmp.pl --plugin=os::linux::snmp::plugin --mode=memory --hostname=127.0.0.1 --snmp-version=3 --snmp-username=nagios --authprotocol=MD5 --authpassphrase='P@ssw0rd' --warning-usage=80 --critical-usage=90

ILO

/usr/lib/centreon/plugins/centreon_hp_ilo_restapi.pl --plugin=hardware::server::hp::ilo::restapi::plugin --mode=hardware --hostname='192.168.1.101' --api-username='sup_ro' --api-password='P@ssw0rd12345678'  --component='.*' --verbose --insecure