On the Google platform using Cloud SQL MySQL version 5.7, is it possible to setup Group Replication as defined in the MySQL documentation chapter 18 (https://dev.mysql.com/doc/refman/5.7/en/group-replication.html)?
I want to be able to setup 3 masters in a group. Each master would have at least 1 read only slave. The masters would be behind a load balance for writing. The slaves would be behind a load balance for reading.