通过Shell脚本批量创建服务器上的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(3306 或 3307) ##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
总结
以上所述是小编给大家介绍的通过Shell脚本批量创建服务器上的MySQL数据库账号 ,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对安科网网站的支持!
如果你觉得本文对你有帮助,欢迎转载,烦请注明出处,谢谢!