Terraform clobal databases

tf.plan

 # module.db_secondary_cluster.aws_rds_cluster.default[0] will be updated in-place
  ~ resource "aws_rds_cluster" "default" {
        apply_immediately                   = true
        arn                                 = "arn:aws:rds:us-west-2:1111111111111111:cluster:example-stage-dbsecondary"
        availability_zones                  = [
            "us-west-2a",
            "us-west-2b",
            "us-west-2c",
        ]
        backtrack_window                    = 0
        backup_retention_period             = 5
        cluster_identifier                  = "example-stage-dbsecondary"
        cluster_members                     = [
            "example-stage-dbsecondary-1",
            "example-stage-dbsecondary-2",
        ]
        cluster_resource_id                 = "cluster-AADFASDFLU42PQYAG2EVSIE2U"
        copy_tags_to_snapshot               = false
        database_name                       = "insight_dm"
        db_cluster_parameter_group_name     = "example-stage-dbsecondary"
        db_subnet_group_name                = "example-stage-dbsecondary"
        deletion_protection                 = false
        enabled_cloudwatch_logs_exports     = []
        endpoint                            = "example-stage-dbsecondary.cluster-cosranvrcqpl.us-west-2.rds.amazonaws.com"
        engine                              = "aurora"
        engine_mode                         = "global"
        engine_version                      = "5.6.10a"
        final_snapshot_identifier           = "example-stage-dbsecondary"
        global_cluster_identifier           = "db-global-cluster"
        hosted_zone_id                      = "Z1PVIF0B656C1W"
        iam_database_authentication_enabled = true
        iam_roles                           = []
        id                                  = "example-stage-dbsecondary"
        kms_key_id                          = "arn:aws:kms:us-west-2:1111111111111111:key/1111bce-523f-4fe6-af28-1c1e11f111f"
        master_username                     = "admin"
        port                                = 3306
        preferred_backup_window             = "07:00-09:00"
        preferred_maintenance_window        = "wed:03:00-wed:04:00"
        reader_endpoint                     = "example-stage-dbsecondary.cluster-ro-cosranvrcqpl.us-west-2.rds.amazonaws.com"
      - replication_source_identifier       = "arn:aws:rds:us-east-2:1111111111111111:cluster:main-stage-db" -> null
        skip_final_snapshot                 = true
        source_region                       = "us-east-2"
        storage_encrypted                   = true
        tags                                = {
            "Name"      = "example-stage-db-econdary"
            "Namespace" = "example"
            "Stage"     = "stage"
        }
        vpc_security_group_ids              = [
            "sg-0d580c50f111111",
        ]
    }