jenkins手动拉取代码，带有tag版本，可以回退

[root@nginx script]# cat autoci.sh 
#!/bin/bash
# 环境变量
# $WORKSPACE:JENKINS自带环境变量，在哪个任务下执行，WORKSAPCE就是哪个目录
# $tag_version:JENKINS任务里面git插件传过来的值，就是程序的tag版本
DATE=`date +%F-%H-%M-%S`
FILENAME="monitor-${tag_version}"
SDIR=$WORKSPACE
DDIR=/usr/local/nginx/html
OTHERIP="192.168.3.156 192.168.3.157"

#打包程序
archive_code(){
  cd $SDIR && tar zcf /script/${FILENAME}.tar.gz ./
}

#推送部署程序
deploy_code(){
  for IP in $OTHERIP
  do
    echo "正在传输文件到$IP"
    scp -rq /script/${FILENAME}.tar.gz root@$IP:/tmp/
    echo "$IP文件传输完成,正在部署"
    ssh root@$IP "mkdir $DDIR/$FILENAME &&                  tar xf /tmp/${FILENAME}.tar.gz -C $DDIR/$FILENAME &&                  rm -rf $DDIR/monitor &&                  ln -s $DDIR/$FILENAME $DDIR/monitor &&                  /usr/local/nginx/sbin/nginx -s reload"
    echo "$IP部署完成"
  done
}

#部署
deploy(){
  archive_code
  deploy_code
}

#回滚
back(){
  BACKFILE=$(ssh root@192.168.3.156 "find /usr/local/nginx/html/ -maxdepth 1 -name monitor-${tag_version}")
  if [[ $BACKFILE == "" ]];then
    echo "无法取到${tag_version}版本，请检查是否已经部署"
    exit 1
  fi
  for IP in $OTHERIP
  do
    echo "正在回滚$IP到$tag_version版本"
    ssh root@$IP "rm -rf $DDIR/monitor &&                  ln -s $BACKFILE $DDIR/monitor &&                  /usr/local/nginx/sbin/nginx -s reload"
    echo "$IP回滚完成"
  done
}
if [[ $SELECT == "DEPLOY" ]];then
  deploy
elif [[ $SELECT == "BACK" ]];then
  back
fi