Alerting: Keep the latest version of deleted rule in version table (#101481)

* add feature toggle alertRuleRestore
* Update delete rule to require UserUID, remove all versions and create "delete" version that holds information about who and when deleted the rule

pkg/services/featuremgmt/registry.go

@@ -1782,6 +1782,13 @@ var (
 			Owner:        grafanaFrontendOpsWG,
 			FrontendOnly: true,
 		},
+		{
+			Name:        "alertRuleRestore",
+			Description: "Enables the alert rule restore feature",
+			Stage:       FeatureStagePublicPreview,
+			Owner:       grafanaAlertingSquad,
+			Expression:  "true", // enabled by default
+		},
 	}
 )
 

pkg/services/featuremgmt/toggles_gen.csv

@@ -236,3 +236,4 @@ alertingRuleVersionHistoryRestore,GA,@grafana/alerting-squad,false,false,true
 newShareReportDrawer,experimental,@grafana/sharing-squad,false,false,false
 rendererDisableAppPluginsPreload,experimental,@grafana/sharing-squad,false,false,true
 assetSriChecks,experimental,@grafana/frontend-ops,false,false,true
+alertRuleRestore,preview,@grafana/alerting-squad,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -954,4 +954,8 @@ const (
 	// FlagAssetSriChecks
 	// Enables SRI checks for Grafana JavaScript assets
 	FlagAssetSriChecks = "assetSriChecks"
+
+	// FlagAlertRuleRestore
+	// Enables the alert rule restore feature
+	FlagAlertRuleRestore = "alertRuleRestore"
 )

pkg/services/featuremgmt/toggles_gen.json

@@ -108,6 +108,22 @@
         "frontend": true
       }
     },
+    {
+      "metadata": {
+        "name": "alertRuleRestore",
+        "resourceVersion": "1741127758142",
+        "creationTimestamp": "2025-03-04T22:29:36Z",
+        "annotations": {
+          "grafana.app/updatedTimestamp": "2025-03-04 22:35:58.1421143 +0000 UTC"
+        }
+      },
+      "spec": {
+        "description": "Enables the alert rule restore feature",
+        "stage": "preview",
+        "codeowner": "@grafana/alerting-squad",
+        "expression": "true"
+      }
+    },
     {
       "metadata": {
         "name": "alertStateHistoryLokiOnly",