实现远程服务器操作

当存在多台实例时，出现问题后，无法确认具体哪个实例让有异常信息，因此，才有该查询日志脚本。

使用前，需要在部署脚本的服务器上安装expect。可以通过yum install expect安装

将两个脚本上传至已安装了expect的服务器上，修改logSearch.sh脚本中各个模块对应的实例信息

logSearch.sh

#!/usr/bin/expect
if [ $# -ne 2 ];
then
  echo "sh logSearch.sh serviceName "grep --color 'ERROR' service.log""
  exit 1
fi
declare -A serviceMap
#依次添加需要的服务与对应的实例关系
serviceMap["serviceName"]="172.16.xx.xx,172.16.xx.xx"

serviceName=$1
filter=$2
hostnameStr=${serviceMap[$serviceName]}
hostnameArray=(${hostnameStr//,/ })
echo $hostnameStr
for hostname in ${hostnameArray[@]}
do
     echo $hostname  $serviceName $filter
     expect login.exp $hostname $serviceName "${filter}"
done

login.exp

#!/usr/bin/expect
set hostname [lindex $argv 0]
set serviceName [lindex $argv 1]
set command [lindex $argv 2]
# 非root用户登录的话，这里改为其他用户
spawn  ssh root@$hostname
expect  {
   "yes/no"
      {send "yes
";}
#{send "yes
"; exp_continue;}
   "password:"
      {exp_send  "password
";} #这里是你要输入的密码
}
expect "#"
send "cd /home/work/${serviceName}/orp/logs 
"  #这里需要调整为对应的服务路径
#expect "#"
send "${command}
"
#expect "#"
send "exit
"
expect eof

CASE1：查询日志

sh logSearch.sh serviceName "grep --color 'ERROR' service.log" 

CASE2：删除日志

sh logSearch.sh serviceName  "rm service.log"

CASE3：查询磁盘使用情况

sh logSearch.sh serviceName  "df -h"