使用python编写nagios脚本监控伺服器/交换机网卡状态

【转载】http://blog.chinaunix.net/uid-26978448-id-3389951.html

 

 

#cat check_snmp_int.py

 

#! / usr/ bin/ python

#_* _coding: utf- 8_* _

 '' '
Create date: 2012-10-29
Last update: 2012-10-29
Version: 1.0
Description: Monitor interface status
Author: Victor
QQ:1409175531
'''

 import sys
 import netsnmp

 def help( ) :
  print '' 'Usage:
sys.argv[0] <Community> <Host> <interface>'''

 try :
  session = netsnmp. Session( Version= 2, Community= sys. argv[ 1] , DestHost= sys. argv[ 2] )
 except IndexError :
  help( )
  sys. exit( )

oid01 = netsnmp. Varbind( 'ifOperStatus' )
oid02 = netsnmp. Varbind( 'ifDescr' )
oidlist01 = netsnmp. VarList( oid01)
oidlist02 = netsnmp. VarList( oid02)
rl01 = session. walk( oidlist01)
rl02 = session. walk( oidlist02)

 '' '1=>UP,2=>DOWN,3=>TESTING,4=>UNKNOWN,5=>DORMANT,6=>NotPresent,7=>lowerLayerDown' ''

 try :

  status = dict( zip( rl02, rl01) ) [ sys. argv[ 3] ]

  if status = = '1' :
    print '%s is UP ' % ( sys. argv[ 3] )
    sys. exit( 0)
  elif status = = '2' :
    print '%s is DOWN' % ( sys. argv[ 3] )
    sys. exit( 2)
  elif status = = '3' :
    print '%s is TESTING' % ( sys. argv[ 3] )
    sys. exit( 1)
  elif status = = '4' :
    print '%s is UNKNOWN' % ( sys. argv[ 3] )
    sys. exit( 1)
  elif status = = '5' :
    print '%s is DORMANT' % ( sys. argv[ 3] )
    sys. exit( 1)
  elif status = = '6' :
    print '%s is NotPresent' % ( sys. argv[ 3] )
    sys. exit( 1)
  elif status = = '7' :
    print '%s is lowerLayerDown' % ( sys. argv[ 3] )
    sys. exit( 1)
  else :
    print 'UNKNOWN'
    sys. exit( 3)

 except :
  sys. exit( )

命令行执行脚本如下：

# python check_snmp_int.py public localhost etho

eth0 is UP    //脚本执行完后的输出内容；

将check_snmp_int.py放在/usr/local/nagios/libexec目录，给执行权限。

commands.cfg配置如下：

    define command{

        command_name check_snmp_int

        command_line $USER1$/check_snmp_int.py  $ARG1$ $HOSTADDRESS$ $ARG2$

    }

host.cfg配置如下：

    define service{

         use                               service

         host_name                   test

         service_description     eth0

         check_command         check_snmp_int!public!eth0   // 如果监控的是交换机端口，这里需要写全称，如GigabitEthernet0/20

       }