fix: correct create_customer script

create_customer

@@ -26,7 +26,7 @@ echo "CREATE DATABASE "$MARIADB_CUSTOMER_DBNAME";" >> tmp
 echo "GRANT ALL PRIVILEGES ON "$MARIADB_CUSTOMER_DBNAME".* To '"$MARIADB_CUSTOMER_NAME"'@'%' IDENTIFIED BY '"$MARIADB_CUSTOMER_PASSWORD"';" >> tmp
 echo "FLUSH PRIVILEGES;" >> tmp
 
-cat tmp | docker exec -i postgres mysql -uroot -p$MARIADB_ROOT_PASSWORD
+cat tmp | docker exec -i mariadb mysql -uroot -p$MARIADB_ROOT_PASSWORD
 
 rm -f tmp