使用python编写nagios脚本监控伺服器/交换机网卡状态

蒦嗳伱

　　【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
  
• '''
  
• 
  
• importsys
  
• importnetsnmp
  
• 
  
• defhelp():
  
•   print'''Usage:
  
  
• sys.argv[0] <Community> <Host> <interface>'''
  
• 
  
• try:
  
•   session =netsnmp.Session(Version=2,Community=sys.argv[1],DestHost=sys.argv[2])
  
• exceptIndexError:
  
•   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]]
  
• 
  
•   ifstatus =='1':
  
•     print'%s is UP '%(sys.argv[3])
  
•     sys.exit(0)
  
•   elifstatus =='2':
  
•     print'%s is DOWN'%(sys.argv[3])
  
•     sys.exit(2)
  
•   elifstatus =='3':
  
•     print'%s is TESTING'%(sys.argv[3])
  
•     sys.exit(1)
  
•   elifstatus =='4':
  
•     print'%s is UNKNOWN'%(sys.argv[3])
  
•     sys.exit(1)
  
•   elifstatus =='5':
  
•     print'%s is DORMANT'%(sys.argv[3])
  
•     sys.exit(1)
  
•   elifstatus =='6':
  
•     print'%s is NotPresent'%(sys.argv[3])
  
•     sys.exit(1)
  
•   elifstatus =='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
       }