shell实现端口监控、日志清理、服务监控

1.通用类脚本

#!/bin/bash
#by wangcc
#2019/0307 14:31

date=`date +%Y%m%d`
Now=`date +%Y/%m/%d-%H:%M`
dir=/root/wangcc/monitor/log
mobile=150xxxx5210,183xxxx0681,138xxxx5964

#日志 
function writeLog(){
        Now=`date +%Y%m%d-%H:%M`
        echo "${Now}:$*" >> ${dir}/monitor_${date}.log
        chmod 757 ${dir}/monitor_${date}.log
}

#sms
function sms_send(){
    mobile_one=`echo ${mobile}|sed 's/,/ /g'`
    for sms in ${mobile_one}
    do
        smswarn ${sms} $1
        echo "${Now}:$*,sms_send to [$sms]" >> ${dir}/sms_${date}.log
    done
}

2.端口监控脚本

#!/bin/bash
#by wangcc

date=`date +%Y%m%d`
Now=`date +%Y/%m/%d-%H:%M`
dir=/root/wangcc/monitor/log

. ~/monitor/monitor_mobile.sh

#检查端口连接数 
function connection_number(){
        port_number_one=`netstat -nat | grep -i ${1} |grep  ESTABLISHED | wc -l`
    pid=`netstat -tlnp|grep dbproxy|awk -F'[:| |/]+' '{if($5=='$1')print $(NF-2)}'`
    cpu=`top -b -n 1 |grep dbproxy |grep ${pid}  |awk '{print $9}'`
    echo "当前端口>>:[ ${1} ] 连接数 >>:[ ${port_number_one} ] CPU 负载 >>:[ ${cpu} ]">>${dir}/monitor_${date}.log        
        if  [[ ${port_number_one} -gt 80 ]] || [[ ${cpu%.*} -gt 85 ]]
        then 
                sms_send "${Now}-->port:[${1}]  number:[${port_number_one}] CPU>>:[${cpu}]"
        fi
}

port_number=`cat /root/wangcc/monitor/port| wc -l`
host_dbpproxy=`ps -ef | grep -v grep | grep /data/dbsec/dbproxy/bin/dbproxy |wc -l`

for i in `cat port`
do
    connection_number ${i}
    sleep 1 
done    

if [[ ${port_number} -eq ${host_dbpproxy} ]]
    then
    writeLog "当前脱敏端口数量 >>>>>>   25  <<<<<"
elif [[ ${port_number} -ne ${host_dbpproxy} ]]
    then
    for i in `cat /root/wangcc/monitor/port`
    do
                writeLog  "当前检查 端口  ${i} "
        netstat -tlnp| grep ${i}
        if [[ $? -eq 0 ]]
            then
            echo "${i} existence !!" >/dev/null
        else
            writeLog "-------->>>   ${i} is not existence !!     <-------------"
            sms_send "!!!!!----->port:[${i}] is not existence !!!!!   "
        fi
    done
    sh /data/dbsec/dbproxy/script/restart.sh restart
    sleep 1
    sms_send "${Now}----->restart all port "
        echo "`date +%Y/%m/%d-%H:%M`:   -------->   restart all port    <--------" >>/root/wangcc/monitor/port_1.log
        writeLog "-------->>>      restart all port      <-------------"    
fi

3.主机状态监控

#!/bin/bash
#by wangcc

date=`date +%Y%m%d`
dir=/root/wangcc/monitor/log

. ~/monitor/monitor_mobile.sh

writeLog "========================================================================="
#check port
cd  /root/wangcc/monitor/ && ./monitor_port.sh 

#获取磁盘使用率
data_name="/data"
diskUsage=`df -h | grep $data_name | awk -F '[ %]+'    '{print $0}'`

  
#获取内存情况
mem_used=`free -m`

writeLog "-------------------------获取磁盘使用率-------------------------"
writeLog  ${diskUsage}
writeLog "-------------------------获取内存情况-------------------------"
writeLog  ${mem_used}

4. 日志清理压缩脚本

#!/bin/bash
#by wangcc

yesterday=`date -d "1 day ago" +"%Y%m%d"`
dir_log='~/monitor/log'

function writeLog(){
        Now=`date +%Y%m%d-%H:%M`
        echo "${Now}-->$*" >> ${dir_log}/bak.txt
}

function check_excute(){
        if [[ $? -ne 0 ]];then
                writeLog "${1} file tar -->  fail  <--"
                exit
        else
                writeLog "${1} file tar -->  success && rm -rf ${1} <--"
        fi
}

function tar_clear(){
    for file in `ls ${1}`
    do
        if [[ ${file} =~ "tar.gz" ]];then
            writeLog "${file} unwantend tar !! "
        else
                writeLog "  ------->   `du -sh ${file}`   <--------  "  
            tar -zcf ${file}_${yesterday}.tar.gz ${file}
            check_excute ${file}
            rm -rf ${file}
            mv ${file}_${yesterday}.tar.gz  old_file
            writeLog  "mv   ${file}_${yesterday}.tar.gz  --->  old_file"
        fi
    done
}


function main(){
    cd   /root/wangcc/monitor/log
    tar_clear "monitor_${yesterday}.log"
    sleep 20
        tar_clear "sms_${yesterday}.log"
    sleep 20
    cd /data/dbsec/dbproxy/log
    tar_clear "errlog_*.${yesterday}*"
    sleep 20
    tar_clear "errlog.${yesterday}"
    writeLog " ==========  ${yesterday} file cleaned up !!   =========  "
}

main