DELETE FROM mysql.user WHERE user NOT IN ('mysql.sys', 'mysqlxsys', 'root') OR host NOT IN ('localhost');
GRANT ALL ON *.* TO root@localhost WITH GRANT OPTION;
DROP DATABASE IF EXISTS test;

CREATE DATABASE IF NOT EXISTS $DB_NAME CHARACTER SET utf8 COLLATE utf8_general_ci;
GRANT ALL ON $DB_NAME.* TO '$DB_USER'@localhost IDENTIFIED BY '$DB_PASSWD';