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

       }