Folder datasource fixes

- Make the nested folders tests run in OSS, not in the cloud instance
- Build the folder datasource from the folder resource's schema, rather than duplicating things
- (bugfix) Use the search API rather than the get folders API, it seems that the latter does not return nested folders

docker-compose.yml

@@ -30,6 +30,7 @@ services:
       - GF_SERVER_ROOT_URL=${GRAFANA_URL}
       - GF_ENTERPRISE_LICENSE_TEXT=${GF_ENTERPRISE_LICENSE_TEXT:-}
       - GF_SERVER_SERVE_FROM_SUB_PATH=${GF_SERVER_SERVE_FROM_SUB_PATH:-}
+      - GF_FEATURE_TOGGLES_ENABLE=nestedFolders
     healthcheck:
       test: wget --no-verbose --tries=1 --spider http://0.0.0.0:3000/api/health || exit 1 # Use wget because older versions of Grafana don't have curl
       interval: 10s

docs/data-sources/folder.md

@@ -29,14 +29,15 @@ data "grafana_folder" "from_title" {
 
 ### Required
 
-- `title` (String) The name of the Grafana folder.
+- `title` (String) The title of the folder.
 
 ### Optional
 
 - `org_id` (String) The Organization ID. If not set, the Org ID defined in the provider block will be used.
 
 ### Read-Only
 
-- `id` (Number) The numerical ID of the Grafana folder.
-- `uid` (String) The uid of the Grafana folder.
+- `id` (String) The ID of this resource.
+- `parent_folder_uid` (String) The uid of the parent folder. If set, the folder will be nested. If not set, the folder will be created in the root folder. Note: This requires the nestedFolders feature flag to be enabled on your Grafana instance.
+- `uid` (String) Unique identifier.
 - `url` (String) The full URL of the folder.

internal/resources/grafana/data_source_folder.go

@@ -3,11 +3,9 @@ package grafana
 import (
 	"context"
 	"fmt"
-	"strconv"
 
 	goapi "github.com/grafana/grafana-openapi-client-go/client"
-	"github.com/grafana/grafana-openapi-client-go/client/folders"
-	"github.com/grafana/grafana-openapi-client-go/models"
+	"github.com/grafana/grafana-openapi-client-go/client/search"
 	"github.com/grafana/terraform-provider-grafana/internal/common"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
@@ -20,53 +18,35 @@ func DatasourceFolder() *schema.Resource {
 * [HTTP API](https://grafana.com/docs/grafana/latest/developers/http_api/folder/)
 `,
 		ReadContext: dataSourceFolderRead,
-		Schema: map[string]*schema.Schema{
+		Schema: common.CloneResourceSchemaForDatasource(ResourceFolder(), map[string]*schema.Schema{
 			"org_id": orgIDAttribute(),
 			"title": {
 				Type:        schema.TypeString,
 				Required:    true,
-				Description: "The name of the Grafana folder.",
+				Description: "The title of the folder.",
 			},
-			"id": {
-				Type:        schema.TypeInt,
-				Computed:    true,
-				Description: "The numerical ID of the Grafana folder.",
-			},
-			"uid": {
-				Type:        schema.TypeString,
-				Computed:    true,
-				Description: "The uid of the Grafana folder.",
-			},
-			"url": {
-				Type:        schema.TypeString,
-				Computed:    true,
-				Description: "The full URL of the folder.",
-			},
-		},
+			"prevent_destroy_if_not_empty": nil,
+		}),
 	}
 }
 
-func findFolderWithTitle(client *goapi.GrafanaHTTPAPI, title string) (*models.Folder, error) {
+func findFolderWithTitle(client *goapi.GrafanaHTTPAPI, title string) (string, error) {
 	var page int64 = 1
 
 	for {
-		params := folders.NewGetFoldersParams().WithPage(&page)
-		resp, err := client.Folders.GetFolders(params)
+		params := search.NewSearchParams().WithType(common.Ref("dash-folder")).WithPage(&page)
+		resp, err := client.Search.Search(params)
 		if err != nil {
-			return nil, err
+			return "", err
 		}
 
 		if len(resp.Payload) == 0 {
-			return nil, fmt.Errorf("folder with title %s not found", title)
+			return "", fmt.Errorf("folder with title %s not found", title)
 		}
 
 		for _, folder := range resp.Payload {
 			if folder.Title == title {
-				resp, err := client.Folders.GetFolderByUID(folder.UID)
-				if err != nil {
-					return nil, err
-				}
-				return resp.Payload, nil
+				return folder.UID, nil
 			}
 		}
 
@@ -75,19 +55,11 @@ func findFolderWithTitle(client *goapi.GrafanaHTTPAPI, title string) (*models.Fo
 }
 
 func dataSourceFolderRead(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
-	metaClient := meta.(*common.Client)
 	client, orgID := OAPIClientFromNewOrgResource(meta, d)
-
-	folder, err := findFolderWithTitle(client, d.Get("title").(string))
+	uid, err := findFolderWithTitle(client, d.Get("title").(string))
 	if err != nil {
 		return diag.FromErr(err)
 	}
-
-	d.SetId(strconv.FormatInt(folder.ID, 10))
-	d.Set("org_id", strconv.FormatInt(orgID, 10))
-	d.Set("uid", folder.UID)
-	d.Set("title", folder.Title)
-	d.Set("url", metaClient.GrafanaSubpath(folder.URL))
-
-	return nil
+	d.SetId(MakeOrgResourceID(orgID, uid))
+	return ReadFolder(ctx, d, meta)
 }

internal/resources/grafana/data_source_folder_test.go

@@ -1,13 +1,15 @@
 package grafana_test
 
 import (
+	"fmt"
 	"os"
 	"strings"
 	"testing"
 
 	"github.com/grafana/grafana-openapi-client-go/models"
 	"github.com/grafana/terraform-provider-grafana/internal/common"
 	"github.com/grafana/terraform-provider-grafana/internal/testutils"
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/acctest"
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
 )
 
@@ -42,3 +44,60 @@ func TestAccDatasourceFolder_basic(t *testing.T) {
 		},
 	})
 }
+
+func TestAccDatasourceFolder_nested(t *testing.T) {
+	testutils.CheckOSSTestsEnabled(t, ">=10.3.0")
+
+	var parent models.Folder
+	var child models.Folder
+	randomName := acctest.RandStringFromCharSet(6, acctest.CharSetAlpha)
+
+	resource.ParallelTest(t, resource.TestCase{
+		ProviderFactories: testutils.ProviderFactories,
+		CheckDestroy: resource.ComposeTestCheckFunc(
+			folderCheckExists.destroyed(&parent, nil),
+			folderCheckExists.destroyed(&child, nil),
+		),
+		Steps: []resource.TestStep{
+			{
+				Config: testNestedFolderData(randomName),
+				Check: resource.ComposeTestCheckFunc(
+					folderCheckExists.exists("grafana_folder.parent", &parent),
+					folderCheckExists.exists("grafana_folder.child", &child),
+					resource.TestCheckResourceAttr("data.grafana_folder.parent", "title", randomName),
+					resource.TestCheckResourceAttr("data.grafana_folder.parent", "uid", randomName),
+					resource.TestMatchResourceAttr("data.grafana_folder.parent", "id", defaultOrgIDRegexp),
+					resource.TestCheckResourceAttr("data.grafana_folder.parent", "parent_folder_uid", ""),
+
+					resource.TestCheckResourceAttr("data.grafana_folder.child", "title", randomName+"-child"),
+					resource.TestCheckResourceAttr("data.grafana_folder.child", "uid", randomName+"-child"),
+					resource.TestMatchResourceAttr("data.grafana_folder.child", "id", defaultOrgIDRegexp),
+					resource.TestCheckResourceAttr("data.grafana_folder.child", "parent_folder_uid", randomName),
+				),
+			},
+		},
+	})
+}
+
+func testNestedFolderData(name string) string {
+	return fmt.Sprintf(`
+resource "grafana_folder" "parent" {
+	title = "%[1]s"
+	uid   = "%[1]s"
+}
+	
+resource "grafana_folder" "child" {
+	title = "%[1]s-child"
+	uid   = "%[1]s-child"
+	parent_folder_uid = grafana_folder.parent.uid
+}
+	
+data "grafana_folder" "parent" {
+	title = grafana_folder.parent.title
+}
+	
+data "grafana_folder" "child" {
+	title = grafana_folder.child.title
+}
+`, name)
+}

internal/resources/grafana/resource_folder_test.go

@@ -98,7 +98,7 @@ func TestAccFolder_basic(t *testing.T) {
 }
 
 func TestAccFolder_nested(t *testing.T) {
-	testutils.CheckCloudInstanceTestsEnabled(t) // TODO: Switch to OSS once nested folders are enabled by default
+	testutils.CheckOSSTestsEnabled(t, ">=10.3.0")
 
 	var parentFolder models.Folder
 	var childFolder1 models.Folder