azurerm_cosmosdb_cassandra_datacenter - expose seed_node_ip_addresses property

internal/services/cosmos/cosmosdb_cassandra_datacenter_resource.go

@@ -109,6 +109,15 @@ func resourceCassandraDatacenter() *pluginsdk.Resource {
 				Optional: true,
 				Default:  true,
 			},
+
+			"seed_node_ip_addresses": {
+				Type:     pluginsdk.TypeList,
+				Computed: true,
+				Elem: &pluginsdk.Schema{
+					Type:         pluginsdk.TypeString,
+					ValidateFunc: validation.IsIPv4Address,
+				},
+			},
 		},
 	}
 
@@ -226,6 +235,10 @@ func resourceCassandraDatacenterRead(d *pluginsdk.ResourceData, meta interface{}
 			d.Set("disk_sku", props.DiskSku)
 			d.Set("sku_name", props.Sku)
 			d.Set("availability_zones_enabled", props.AvailabilityZone)
+
+			if err := d.Set("seed_node_ip_addresses", flattenCassandraDatacenterSeedNodes(props.SeedNodes)); err != nil {
+				return fmt.Errorf("setting `seed_node_ip_addresses`: %+v", err)
+			}
 		}
 	}
 	return nil
@@ -319,3 +332,18 @@ func cassandraDatacenterStateRefreshFunc(ctx context.Context, client *managedcas
 		return nil, "", fmt.Errorf("unable to read provisioning state")
 	}
 }
+
+func flattenCassandraDatacenterSeedNodes(input *[]managedcassandras.SeedNode) []interface{} {
+	results := make([]interface{}, 0)
+	if input == nil {
+		return results
+	}
+
+	for _, item := range *input {
+		if item.IPAddress != nil {
+			results = append(results, item.IPAddress)
+		}
+	}
+
+	return results
+}

website/docs/r/cosmosdb_cassandra_datacenter.html.markdown

@@ -112,6 +112,8 @@ In addition to the Arguments listed above - the following Attributes are exporte
 
 * `id` - The ID of the Cassandra Datacenter.
 
+* `seed_node_ip_address` - A list of IP Address for the seed nodes in this Cassandra Datacenter. 
+
 ## Timeouts
 
 The `timeouts` block allows you to specify [timeouts](https://www.terraform.io/language/resources/syntax#operation-timeouts) for certain actions: