通过Shell脚本来创建批量服务器上的MySQL数据库账号

 1.项目背景

因监控需要,我们需要在既有的每个MySQL实例上创建一个账号。公司有数百台 MySQL 实例,如果手动登入来创建账号很麻烦,也不现实。所以,我们写了一个简单的shell脚本,用来创建批量服务器的mysql 账号。

 2.执行脚本内容;

#!/bin/bash
## 此段shell 脚本的主要功能是实现在多个SQL Server IP实例上,创建账号。输入参数是两个,第一个是数据库所在的IPs,即多个Server IP构成的字符串,IP间用逗号隔开。第二个参数是 端口(33063307)
##MySQL程序所在路径--mysql bin 文件所在路径;如果由建立软连接,可直接是mysql
command_linebin="/data/mysql5720/bin/mysql"
##用来连接MySQ的账号和密码
username="DBA_MYSQLACC"
password="DBAACCTEST109211706DF"
## 新创建的账号和密码
createuid="testuid"
createpwd="testpwd"
##指定新创建的用户在那个主机上可以登录,如果是本地用户可用localhost;如果指定规则的可以使用通配符%
phost="177.177.%"

mysqlserverIPs=$1
echo $mysqlserverIPs
## 按“,”分割,将字符串转换为数组。
IParr=(${mysqlserverIPs//,/ })
echo $IParr

for ((i=0;i<${#IParr[@]};i++))
do
   IP=${IParr[$i]}
   echo "${IP}"
select_sql="select * from user where user=\"$createuid\""
msg=$(${command_linebin} -h ${IP}  -P $2 -u$username -p$password -s mysql -e "${select_sql}")

echo $msg

##创建账号前,先检查需要创建的账号是否已经存在,如果已经存在了,则直接退出。
if [[ $msg = "" ]] ;then
   echo $(date -d today +"%Y%m%d%H%M%S")  $mip  "The Condition is OK,permit to create UID."
else
    echo $(date -d today +"%Y%m%d%H%M%S")  $IP  "The UID you want create has been exited, please check it! The Act Quit!"
    exit
 fi

## 以下几行代码是创建的关键
${command_linebin} -h ${IP} -P $2  -u$username -p$password -s mysql <<EOF

CREATE USER '$createuid'@'$phost' IDENTIFIED BY '$createpwd';


GRANT Select,PROCESS ON *.* TO '$createuid'@'$phost';


flush privileges;


EOF

##创建后,再次检查账号看否已将存在。如果不存在,则说明创建失败,直接退出。
select_sql="select * from user where user=\"$createuid\""
msg=$(${command_linebin} -h ${IP}  -P $2 -u$username -p$password -s mysql -e "${select_sql}")
echo $msg


if [[ $msg = "" ]] ;then
   echo $(date -d today +"%Y%m%d%H%M%S")  ${IP}  "The action to create UID Error,Please Check it! The Act Quit! "
   exit
else
    echo $(date -d today +"%Y%m%d%H%M%S")  ${IP}  "Congratulation! Create UID successful"
 fi


done

3. 执行举例

Step 1 将代码放置到执行文件中,可执行文件命名为 mysql_CreateUIDMulti.sh

Step 2 请对此文件授予可执行权限,否则,提示以下错误。

Step 3 执行的具体命令(参数格式),例如 在 177.177.XXX.128,177.177.XXX.144 两个 3306的实例上创建账号

./mysql_CreateUIDMulti.sh 177.177.XXX.128,177.177.XXX.144 3306

Step 4 打印的执行结果如下

177.177.XXX.128,177.177.XXX.144
177.177.XXX.128
177.177.XXX.128
mysql: [Warning] Using a password on the command line interface can be insecure.

20180529171802 The Condition is OK,permit to create UID.
mysql: [Warning] Using a password on the command line interface can be insecure.
mysql: [Warning] Using a password on the command line interface can be insecure.
177.177.% testuid Y N N N N N N N Y N N N N N N N N N N N N N N N N N N N N 0 0 0 0 mysql_native_password *22CBF14EBDE8814586FF12332FA2B6023A7603BB N 2018-05-29 17:18:02 NULL N
20180529171802 177.177.XXX.128 Congratulation! Create UID successful
177.177.XXX.144
mysql: [Warning] Using a password on the command line interface can be insecure.
177.177.% testuid Y N N N N N N N Y N N N N N N N N N N N N N N N N N N N N 0 0 0 0 mysql_native_password *22CBF14EBDE8814586FF12332FA2B6023A7603BB N 2018-05-30 00:56:38 NULL N
20180529171802 177.177.XXX.144 The UID you want create has been exited, please check it! The Act Quit!

4.补充说明

如果创建一个服务器上的MySQL账号,可按照以下格式

./mysql_CreateUIDMulti.sh 177.177.XXX.128 3306

打印的Log 如下

177.177.XXX.128
177.177.XXX.128
177.177.XXX.128
mysql: [Warning] Using a password on the command line interface can be insecure.

20180529173517 The Condition is OK,permit to create UID.
mysql: [Warning] Using a password on the command line interface can be insecure.
mysql: [Warning] Using a password on the command line interface can be insecure.
177.177.% testuid Y N N N N N N N Y N N N N N N N N N N N N N N N N N N N N 0 0 0 0 mysql_native_password *22CBF14EBDE8814586FF12332FA2B6023A7603BB N 2018-07-29 17:35:17 NULL N
20180529173517 177.177.XXX.128 Congratulation! Create UID successful

 

 

本文版权归作者所有,未经作者同意不得转载,谢谢配合!!!

本文版权归作者所有,未经作者同意不得转载,谢谢配合!!!

本文版权归作者所有,未经作者同意不得转载,谢谢配合!!!

posted @ 2019-07-29 17:50  东山絮柳仔  阅读(1372)  评论(0编辑  收藏  举报