sourceIdentifier
The identifier of the event source to be added.
Constraints:
If the source type is a DB instance, a
DBInstanceIdentifiervalue must be supplied.If the source type is a DB cluster, a
DBClusterIdentifiervalue must be supplied.If the source type is a DB parameter group, a
DBParameterGroupNamevalue must be supplied.If the source type is a DB security group, a
DBSecurityGroupNamevalue must be supplied.If the source type is a DB snapshot, a
DBSnapshotIdentifiervalue must be supplied.If the source type is a DB cluster snapshot, a
DBClusterSnapshotIdentifiervalue must be supplied.If the source type is an RDS Proxy, a
DBProxyNamevalue must be supplied.