nagios 网卡流量报警插件
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一个简单的监控插件
#!/bin/bash
##########################################################
#2016-01-13@get network_info #
#by@xbzy #
# #
##########################################################
set -o nounset
set -o errexit
Traffic_OK=0
Traffic_WARNING=1
Traffic_CRITICAL=2
Traffic_UNKNOWN=3
if [ $# -ne 4 ];then
echo "Usage:sh $0 -w 0.8 -c 0.9"
exit $Traffic_UNKNOWN
fi
Net_dev=$(ifconfig |grep -E "(eth|em)"|awk '{print $1}')
#Net_dev=$1
Net_dev_num=$(ifconfig |grep -E "(eth|em)"|awk '{print $1}'|wc -l)
One_Net_dev=$(ifconfig |grep -E "(eth|em)"|awk '{print $1}'|head -1)
#Max_speed=$(ethtool $One_Net_dev|grep Speed|grep-oE"+")
Max_speed="1000"
Warng_threshold=$2
#Warng_threshold="0.8"
Critical_threshold=$4
#Critical_threshold="0.9"
Warng_speed=$(echo $Max_speed | awk '{print $1*Warng_threshold*1024*1024/8}' Warng_threshold=$Warng_threshold)
Critical_speed=$(echo $Max_speed | awk '{print $1*Critical_threshold*1024*1024/8}' Critical_threshold=$Critical_threshold)
Sleep_count=2
function Get_netinfo()
{
local net_device=$1
#Max_speed=$(ethtool $net_device |grep Speed|grep-oE"+")
#echo-e"\t RX `date +%k:%M:%S` TX"
Count=1
while [ "$Count" -gt 0 ]
do
RXpre=$(cat /proc/net/dev | grep "\<$net_device\>" | tr : " " | awk '{print $2}')
TXpre=$(cat /proc/net/dev | grep "\<$net_device\>" | tr : " " | awk '{print $10}')
sleep ${Sleep_count}
#set -x
RXnext=$(cat /proc/net/dev | grep "\<$net_device\>" | tr : " " | awk '{print $2}')
TXnext=$(cat /proc/net/dev | grep "\<$net_device\>" | tr : " " | awk '{print $10}')
#clear
#echo "$TXnext"
#RX=$
#TX=$
RX=$((${RXnext}-${RXpre}))
TX=$((${TXnext}-${TXpre}))
#RX_k=$(echo ${RX} |awk '{print $1*8/2/1024/1024}')
RX_k=$((${RX}/${Sleep_count}))
TX_k=$((${TX}/${Sleep_count}))
if [[ $RX_k -gt $Warng_speed ]] && [[ $RX_k -lt $Critical_speed ]] || [[ $TX_k -gt $Warng_speed ]] && [[ $TX_k -lt $Critical_speed ]];then
echo"Traffic_WARNING $net_device : recv $(echo ${RX_k}|awk '{printf "%2.2f\n",$1/1024}')kB;send $(echo ${TX_k}|awk '{printf "%2.2f\n",$1/1024}')kB"
exit $Traffic_WARNING
elif [[ $RX_k -gt $Critical_speed ]] || [[ $TX_k -gt $Critical_speed ]] ; then
echo"Traffic_CRITICAL $net_device : recv $(echo ${RX_k}|awk '{printf "%2.2f\n",$1/1024}')kB;send $(echo ${TX_k}|awk '{printf "%2.2f\n",$1/1024}')kB"
exit $Traffic_CRITICAL
else
echo"Traffic_OK $net_device : recv $(echo ${RX_k}|awk '{printf "%2.2f\n",$1/1024}')kB;send $(echo ${TX_k}|awk '{printf "%2.2f\n",$1/1024}')kB"
exit$Traffic_OK
fi
let "Count -=1"
done
}
#J=0
if [ "$1" = "-w" ] && [ $3 = "-c" ];then
if [ $Net_dev_num -eq 0 ];then
echo "No device found"
exit $Traffic_UNKNOWN
elif [ $Net_dev_num -eq 1 ];then
Get_netinfo $Net_dev
else
echo "net_device > 1"
exit$Traffic_UNKNOWN
fi
else
echo "Usage:sh $0 -w 0.8 -c 0.9"
exit $Traffic_UNKNOWN
fi
# for i in $Net_dev
# do
# Arr_info[$J]=$(Get_netinfo $i)
# let "J +=1"
# done
#echo "${Arr_info[@]}"|awk 'BEGIN{OFS=";"}{NF=NF;print $0}'
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