检查服务器主从状态的脚本-check_server_state.sh

时间:2022-01-16 12:44:31

分别检查服务器在Master/Slave状态下,各项服务是否正常,否则报警;

原来使用keepalived每隔1分钟调用,由于执行结果对keepalived的weight参数有影响,所以移动到外部,使用supervisord进行管理;

运行在后台,作为守护进程;

#!/bin/bash

htname=$(hostname)
vip="10.108.144.5"
epg01="10.108.144.1"
epg02="10.108.144.2"
error_number=0

function send_warn()
{
  echo "Begin to send email......"
  if [ $(ip addr | grep $epg01 | wc -l) -eq 1 ];then
  #EPG-01
    if [ -f /sunlight/python/slt_send_mail.py ];then
      if [ $(ping -w 1 -c 1 baidu.com | grep ttl | wc -l) -eq 1 ];then
        python /sunlight/python/slt_send_mail.py "$1"
      fi
    fi
  else
  #EPG-02
    ssh -p 2222 -i /usr/local/sunlight/sshkeys/init.pk -o StrictHostKeyChecking=no $epg01 "ping -w 1 -c 1 baidu.com"
    if [ $? -eq 0 ];then
      ssh -p 2222 -i /usr/local/sunlight/sshkeys/init.pk -o StrictHostKeyChecking=no $epg01 "python /sunlight/python/slt_send_mail.py \"$1\""
    fi
  fi
  echo "Send mail end......"
}

while true
do
  event_string="<p><span style='color:#FF0000'>发现运行时错误!</span></p>"
  error_number=0
  check_vip=$(ip addr | grep $vip | wc -l)
  check_cron=$(ls -l /etc/cron.d |grep "^-" | wc -l)
  check_smon=$(ps -ef | grep /usr/local/sunlight/smon | grep -v grep | wc -l)
  check_route=$(ip route | grep $vip | wc -l)
  check_ip_conflict=$(ps -ef | grep "check_server_ip_conflict.sh" | grep -v grep | wc -l)

  #master
  if [ $check_vip -eq 1 ];then
  echo "[ info ] `date "+%Y%m%d %H:%M:%S"` Server is in Master State!"
  echo "check cron......"
  echo "$check_cron"
  if [ $check_cron -lt 1 ];then
    error_number=1
    event_string="${event_string}<p>错误描述:服务器在Master状态下,/etc/cron.d/目录下定时任务文件不存在,请登录检查!</p>"
  fi
  echo "check smon......"
  echo "$check_smon"
  if [ $check_smon -ne 1 ];then
    error_number=1
    event_string="${event_string}<p>错误描述:服务器在Master状态下,smon进程不为1,请登录检查!</p>"
  fi
  echo "check route......"
  echo "$check_route"
  if [ $check_route -ne 1 ];then
    error_number=1
    event_string="${event_string}<p>错误描述:服务器在Master状态下,虚拟路由地址没有正确设置,请登录检查!</p>"
  fi
  echo "check_ip_conflict......"
  echo "$check_ip_conflict"
  if [[ $check_ip_conflict -ne 1 && $check_ip_conflict -ne 2 ]];then
    error_number=1
    event_string="${event_string}<p>错误描述:服务器在Master状态下,检测IP地址冲突的脚本没有正确运行,请登录检查!</p>"
  fi
fi

#slave
if [ $check_vip -ne 1 ];then
  echo "[ info ] `date "+%Y%m%d %H:%M:%S"` Server is in Slave State!"
  echo "check cron......"
  echo "$check_cron"
  if [ $check_cron -gt 0 ];then
    error_number=1
    event_string="${event_string}<p>错误描述:服务器在Slave状态下,/etc/cron.d/目录下定存在定时任务文件,请登录检查!</p>"
  fi

  echo "check smon......"
  echo "$check_smon"
  if [ $check_smon -ne 1 ];then
    error_number=1
    event_string="${event_string}<p>错误描述:服务器在Slave状态下,smon进程不为1,请登录检查!</p>"
  fi

  echo "check route......"
  echo "$check_route"
  if [ $check_route -eq 1 ];then
    error_number=1
    event_string="${event_string}<p>错误描述:服务器在Slave状态下,存在虚拟路由地址,请登录检查!</p>"
  fi

  echo "check_ip_conflict......"
  echo "$check_ip_conflict"
  if [[ $check_ip_conflict -ne 1 && $check_ip_conflict -ne 2 ]];then
    error_number=1
  event_string="${event_string}<p>错误描述:服务器在Slave状态下,检测IP地址冲突的脚本没有正确运行,请登录检查!</p>"
  fi
fi

event_string="${event_string}<p>消息来源:海南-三亚-亚特兰蒂斯酒店</p>"
event_string="${event_string}<p>hostname: ${htname}</p>"

if [ $error_number -eq 1 ];then
  echo $event_string
  send_warn "$event_string"
fi
sleep 60
done