use CREATE USER to define account authentication characteristics

mysql/startup

@@ -1,4 +1,4 @@
-DROP USER IF EXISTS 'MYSQL_USER'; 
+DROP USER IF EXISTS 'MYSQL_USER' IDENTIFIED BY 'MYSQL_PASSWORD'; 
 CREATE USER 'MYSQL_USER'@'%'; 
 CREATE DATABASE IF NOT EXISTS MYSQL_DATABASE; 
-GRANT ALL ON MYSQL_DATABASE.* TO 'MYSQL_USER'@'%' IDENTIFIED BY 'MYSQL_PASSWORD';
+GRANT ALL ON MYSQL_DATABASE.* TO 'MYSQL_USER'@'%';