updating database datasource to include tags

Author: rcohenma

docs/database/databases.md

@@ -25,6 +25,8 @@ The following attributes are exported:
 * `db_name` - The database name.
 * `db_unique_name` - A system-generated name for the database to ensure uniqueness within an Oracle Data Guard group (a primary database and its standby databases). The unique name cannot be changed. 
 * `db_workload` - Database workload type.
+* `defined_tags` - Defined tags for this resource. Each key is predefined and scoped to a namespace. For more information, see [Resource Tags](https://docs.us-phoenix-1.oraclecloud.com/Content/General/Concepts/resourcetags.htm).  Example: `{"Operations.CostCenter": "42"}` 
+* `freeform_tags` - Free-form tags for this resource. Each tag is a simple key-value pair with no predefined name, type, or namespace. For more information, see [Resource Tags](https://docs.us-phoenix-1.oraclecloud.com/Content/General/Concepts/resourcetags.htm).  Example: `{"Department": "Finance"}` 
 * `id` - The OCID of the database.
 * `lifecycle_details` - Additional information about the current lifecycleState.
 * `ncharacter_set` - The national character set for the database.
@@ -41,7 +43,6 @@ data "oci_database_database" "test_database" {
 }
 ```
 
-
 # oci_database_databases
 
 ## Database DataSource

provider/database_database_data_source.go

@@ -34,6 +34,12 @@ func DatabaseDataSource() *schema.Resource {
 				Type:     schema.TypeString,
 				Computed: true,
 			},
+			"defined_tags": {
+				Type:             schema.TypeMap,
+				Computed:         true,
+				DiffSuppressFunc: definedTagsDiffSuppressFunction,
+				Elem:             schema.TypeString,
+			},
 			"db_backup_config": {
 				Type:     schema.TypeList,
 				Computed: true,
@@ -69,6 +75,11 @@ func DatabaseDataSource() *schema.Resource {
 				Type:     schema.TypeString,
 				Computed: true,
 			},
+			"freeform_tags": {
+				Type:     schema.TypeMap,
+				Computed: true,
+				Elem:     schema.TypeString,
+			},
 			"id": {
 				Type:     schema.TypeString,
 				Computed: true,
@@ -159,6 +170,12 @@ func (s *DatabaseDataSourceCrud) SetData() {
 		s.D.Set("db_workload", *s.Res.DbWorkload)
 	}
 
+	if s.Res.DefinedTags != nil {
+		s.D.Set("defined_tags", definedTagsToMap(s.Res.DefinedTags))
+	}
+
+	s.D.Set("freeform_tags", s.Res.FreeformTags)
+
 	if s.Res.Id != nil {
 		s.D.Set("id", *s.Res.Id)
 	}

provider/database_databases_data_source.go

@@ -138,6 +138,12 @@ func (s *DatabasesDataSourceCrud) SetData() {
 			database["db_workload"] = *r.DbWorkload
 		}
 
+		if r.DefinedTags != nil {
+			database["defined_tags"] = definedTagsToMap(r.DefinedTags)
+		}
+
+		database["freeform_tags"] = r.FreeformTags
+
 		if r.Id != nil {
 			database["id"] = *r.Id
 		}