!include include/default_mysqld.cnf [mysqld.1] log-slave-updates innodb gtid_domain_id=0 [mysqld.2] log-slave-updates innodb gtid_domain_id=1 [mysqld.3] log-slave-updates innodb gtid_domain_id=2 [ENV] SERVER_MYPORT_1= @mysqld.1.port SERVER_MYPORT_2= @mysqld.2.port SERVER_MYPORT_3= @mysqld.3.port