Storage: Customise setting dual writing modes (#87668)

* Add feature toggles for mode 2 and 3 playlist dual writing
* Make current mode customised based on kind
* Check feature flags when initialising dual writer
* Fix linting
* Refactor NewDualWriter

pkg/services/featuremgmt/registry.go

@@ -228,6 +228,18 @@ var (
 			RequiresRestart: true, // new SQL tables created
 			Owner:           grafanaAppPlatformSquad,
 		},
+		{
+			Name:        "dualWritePlaylistsMode2",
+			Description: "Enables dual writing of playlists to both legacy and k8s storage in mode 2",
+			Stage:       FeatureStageExperimental,
+			Owner:       grafanaSearchAndStorageSquad,
+		},
+		{
+			Name:        "dualWritePlaylistsMode3",
+			Description: "Enables dual writing of playlists to both legacy and k8s storage in mode 3",
+			Stage:       FeatureStageExperimental,
+			Owner:       grafanaSearchAndStorageSquad,
+		},
 		{
 			Name:           "cloudWatchCrossAccountQuerying",
 			Description:    "Enables cross-account querying in CloudWatch datasources",

pkg/services/featuremgmt/toggles_gen.csv

@@ -28,6 +28,8 @@ topnav,deprecated,@grafana/grafana-frontend-platform,false,false,false
 returnToPrevious,GA,@grafana/grafana-frontend-platform,false,false,true
 grpcServer,preview,@grafana/grafana-app-platform-squad,false,false,false
 unifiedStorage,experimental,@grafana/grafana-app-platform-squad,false,true,false
+dualWritePlaylistsMode2,experimental,@grafana/search-and-storage,false,false,false
+dualWritePlaylistsMode3,experimental,@grafana/search-and-storage,false,false,false
 cloudWatchCrossAccountQuerying,GA,@grafana/aws-datasources,false,false,false
 showDashboardValidationWarnings,experimental,@grafana/dashboards-squad,false,false,false
 mysqlAnsiQuotes,experimental,@grafana/search-and-storage,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -123,6 +123,14 @@ const (
 	// SQL-based k8s storage
 	FlagUnifiedStorage = "unifiedStorage"
 
+	// FlagDualWritePlaylistsMode2
+	// Enables dual writing of playlists to both legacy and k8s storage in mode 2
+	FlagDualWritePlaylistsMode2 = "dualWritePlaylistsMode2"
+
+	// FlagDualWritePlaylistsMode3
+	// Enables dual writing of playlists to both legacy and k8s storage in mode 3
+	FlagDualWritePlaylistsMode3 = "dualWritePlaylistsMode3"
+
 	// FlagCloudWatchCrossAccountQuerying
 	// Enables cross-account querying in CloudWatch datasources
 	FlagCloudWatchCrossAccountQuerying = "cloudWatchCrossAccountQuerying"

pkg/services/featuremgmt/toggles_gen.json

@@ -2179,6 +2179,30 @@
         "stage": "experimental",
         "codeowner": "@grafana/grafana-frontend-platform"
       }
+    },
+    {
+      "metadata": {
+        "name": "dualWritePlaylistsMode2",
+        "resourceVersion": "1715369873132",
+        "creationTimestamp": "2024-05-10T19:37:53Z"
+      },
+      "spec": {
+        "description": "Enables dual writing of playlists to both legacy and k8s storage in mode 2",
+        "stage": "experimental",
+        "codeowner": "@grafana/search-and-storage"
+      }
+    },
+    {
+      "metadata": {
+        "name": "dualWritePlaylistsMode3",
+        "resourceVersion": "1715369873132",
+        "creationTimestamp": "2024-05-10T19:37:53Z"
+      },
+      "spec": {
+        "description": "Enables dual writing of playlists to both legacy and k8s storage in mode 3",
+        "stage": "experimental",
+        "codeowner": "@grafana/search-and-storage"
+      }
     }
   ]
 }