MySQL Shell 8.4
When you create a cluster and add instances to it, values such
as the group name and the local address are configured
automatically by AdminAPI. The default values are recommended
for most deployments, but advanced users can override the
defaults by passing the following options to the
dba.createCluster() and
Cluster.addInstance()
Pass the groupName option to the
dba.createCluster() command to customize
the name of the replication group created by
InnoDB Cluster. This sets the
group_replication_group_name
system variable. The name must be a valid UUID.
Pass the localAddress option to the
dba.createCluster() and
cluster.addInstance() commands to
customize the address which an instance provides for
connections from other instances. Specify the address in the
format
host:portgroup_replication_local_address
system variable on the instance. The address must be
accessible to all instances in the cluster, and must be
reserved for internal cluster communication only. In other
words, do not use this address for communication with the
instance.
For more information see the documentation of the system variables configured by these AdminAPI options.