通用巡检脚本

#CPU、内存、硬盘部分，部分awk取值需要根据实际情况修改
#进程需要选择要关注的进程
#数据库部分，如无巡检备机状态需要，可修改为 mysql -u -p -h [备机ip] 来远程检查
#会在指定位置生成一个当日的.log文件，内部有命令执行的结果部分

 1 #!/bin/bash
 2 
 3 . /etc/init.d/functions
 4 
 5 LINE="\e[1;37m+-----------------------------------------------------------------+\e[0m"
 6 LOG=/opt/log/`date +%Y%m%d`.log
 7 [ -f /opt/log ] || mkdir -p /opt/log
 8 
 9 M="172.31.112.173"
10 S="10.1.193.97"
11 IP=`ifconfig |awk -F '[ :]+' 'NR==10{print $3}'`
12 
13 CPU_MEM_DISK(){
14   echo -e ${LINE}
15   echo -e "CPU、内存、硬盘"
16 
17   CPUS=`top -n1|awk -F "," 'NR==3{print $4}'`
18   MEM=`free -m|awk -v OFS="/" 'NR==2{print $2,($3+$7)}'`
19   DISK=`df|awk '{if(NR>1){print $4}}'|sort -nr|tail -n1`
20   DISK2=`df|awk '{if(NR>1){print $5}}'|sort -nr|head -n1`
21   
22   top -n1|head -n 4 >> ${LOG}
23   free -m >> ${LOG}
24   df -h >> ${LOG}
25 
26   echo -e "CPU 未使用百分比为 ${CPUS} ;\n内存总空间与剩余空间为 {MEN};\n磁盘最小剩余空间为`expr ${DISK} / 1024`M;最高使用率为 ${DISK2}\n"
27   echo -e ${LINE}
28 }
29 
30 PORTS_CHECK(){
31   echo -e ${LINE}
32   echo -e "端口状态："
33   
34 PORTS="
35 80
36 443
37 22
38 "
39 
40 for i in ${PORTS};do
41   netstat -anoplt|grep ${i} >> ${LOG} && action ${i} || action "${i} is not work !!!" /bin/false
42 done
43 }
44 
45 PROCESS_CHECK(){
46 PORCESS="
47 docker
48 sshd
49 "
50 echo -e ${LINE}
51 echo -e "进程状态："
52 
53 J=0
54 for i in ${PORCESS};do 
55   ps -ef |grep ${i}|grep -v grep >> ${LOG} &&action ${i};let J=J+1 ||action ${i} /bin/false
56 done
57   echo -e "目标进程存活${J}个"
58 }
59 
60 MYSQL_CHECK(){
61 echo -e ${LINE}
62 echo -e "数据库主从状态："
63 
64 if [[ ${IP} == ${M} ]];then 
65   mysql -uroot -p123456 -e "show master status;"
66 elif [[ ${IP} == ${S} ]];then
67    mysql -uroot -p123456 -e "show slave status\G;" |grep -E "Master_Log_File|Read_Master_Log_Pos|Slave_IO_Running|Last_Err|Seconds_Behind_Master"
68 else 
69   echo "IP设置有问题"
70 fi
71 }
72 
73 if [[ ${IP} == ${M} ]];then
74 CPU_MEM_DISK
75 PORTS_CHECK
76 PROCESS_CHECK
77 MYSQL_CHECK
78 echo -e ${LINE}
79 elif [[ ${IP} == ${S} ]];then
80 CPU_MEM_DISK
81 MYSQL_CHECK
82 echo -e ${LINE}
83 else
84   echo "未取到设置的IP"
85 fi
86 
87 echo -e "\e[?25h"
88 echo -e "\e[?25h" >> ${LOG}
89 echo -e ${LINE} >> ${LOG}