MySQL 8 默认身份验证插件caching_sha2_password

root@da2ac5ce6f38:/# mysql -uroot -pdingjia --protocol=tcp  -hmysql80
Warning: Using a password on the command line interface can be insecure.
ERROR 2059 (HY000): Authentication plugin 'caching_sha2_password' cannot be loaded: /usr/lib/mysql/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory
root@da2ac5ce6f38:/# mysql -uscutech -pdingjia --protocol=tcp  -hmysql80
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 14
Server version: 8.0.19 MySQL Community Server - GPL
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mysql>

ALTER USER 'scutech'@'%' IDENTIFIED WITH mysql_native_password BY 'dingjia';
mysql> SELECT Host, User, plugin from mysql.user;
+-----------+------------------+-----------------------+
| Host      | User             | plugin                |
+-----------+------------------+-----------------------+
| %         | root             | caching_sha2_password |
| %         | scutech          | mysql_native_password |
| localhost | mysql.infoschema | caching_sha2_password |
| localhost | mysql.session    | caching_sha2_password |
| localhost | mysql.sys        | caching_sha2_password |
| localhost | root             | caching_sha2_password |
+-----------+------------------+-----------------------+