第一天自动升级脚本部署

#!/bin/bash

#判断是否有备份文件夹，没有自动创建

for ((a = 1;a <=3; a++))
do
if [ ! -d "/home/rollback" ];then
    mkdir /home/rollback
    echo "create rollback folder"
    continue
    else
    echo "rollback already exists"
    break
    fi
done

if [ ! -d "/home/rollback" ];then
echo "The rollback folder cannot be created"
echo "NOW OUT update xxxx SHELL"
exit
fi

for ((b = 1 ;b <= 3 ;b++))
do
rm -rf /home/rollback/*
break
done

#判断并清空备份文件夹

if [ -d "/home/rollback/xxxx" ];then
echo "The rollback/xxxx folder is not empty"
echo "NOW OUT update xxxx SHELL"
exit
fi

if [ -f "/home/rollback/xxxx.tar" ];then
echo "/home/rollback/xxxx.tar already exists "
echo "NOW OUT update xxxx SHELL"
exit
fi

for ((d=1;d<=1;d++))
do

#正式升级过程，将原文件移动到备份文件夹，以备回滚版本
if [ ! -d "/home/rollback/xxxx" ];then
mv /home/xxxx* /home/rollback/
break
fi
done

#判断移动过程是否准确

if [ ! -d "/home/rollback/xxxx" ];then

   if [ ! -d "/home/xxxx" ];then
    echo "using xxxx is lost"
    echo "NOW OUT update xxxx SHELL"
    exit
    else
    echo "/home/xxxx can not move to /home/rollback/"
    echo "NOW OUT update xxxx SHELL"
    exit
   fi
fi

#判断是否有待升级工程文件

for ((e=1;e<=3;e++))
do
if [ ! -d /home/backup1/xxxx ];then
/home/getxxxx.sh
break
fi
done

#移动新版本到指定项目路径

if [ -d /home/backup1/xxxx ];then
echo "Get ready to start upgrading "
else
echo "The xxxx package does not exist before upgrading "
echo "NOW OUT update xxxx SHELL"
exit
fi

#循环杀死程序，直到杀死程序或停止升级

for ((f=1;f<=3;f++))
do
########################################################
num=`ps -ef |grep java|grep -v "grep"|grep -v "tomcat6.0.29_1"|awk '{print $2}'`
########################################################
if [ ! -n "$num" ];then
    kill -9 $num
   else
    echo "The xxxx process has been killed"
    break
fi
done

if [ ! -n "$num" ];then
echo "The xxxx process cannot be killed "
echo "NOW OUT update xxxx SHELL"
exit
fi

#判断是否新版本工程文件已在制定路径

for ((g=1;g<=3;g++))
do
if [ ! -d /home/xxxx ];then
   mv /home/backup1/* /home/
   else
   echo "The upgrade pack is ready ..."
   break
   fi
done
if [ ! -d /home/xxxx ];then
   echo "New upgrade pack has been lost"
   echo "NOW OUT update xxxx SHELL"
   exit
   fi

#清缓存

for ((h=1;h<=3;h++))
do
################################################
if [ -d $CATALINA_HOME/work/Catalina ];then
   cd $CATALINA_HOME/work/
#################################################
   rm -rf Catalina
   else
   echo "Cache cleared"
   break
   fi
done
##############################################
if [ -d $CATALINA_HOME/work/Catalina ];then
#############################################
   echo "Catalina can not remove"
   echo "NOW OUT update xxxx SHELL"
   exit
   fi
#########################################

#重新启动服务

startup.sh
########################################
sleep 20
########################################################
num=`ps -ef |grep java|grep -v "grep"|grep -v "tomcat6.0.29_1"|awk '{print $2}'`
########################################################

#判断是否重启成功

if [ -n "$num" ];then
   echo " The xxxx program is start "
   else
   echo "The xxxx program is not start"
   echo " MOW OUT xxxx update SHELL"
   break
fi

#升级完成
echo "The xxxx program has been successfully upgraded"

待改进：判断和循环重复出现，可改为函数调用。

第一天 自动升级脚本部署

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