Alerting: State Manager takes screenshots. (#49338)

The State Manager will now take screenshots when an alert instance
switches to an Alerting or Resolved state.

Signed-off-by: Joe Blubaugh joe.blubaugh@grafana.com

pkg/services/ngalert/models/alert_rule.go

@@ -81,6 +81,10 @@ const (
 	// Annotations are actually a set of labels, so technically this is the label name of an annotation.
 	DashboardUIDAnnotation = "__dashboardUid__"
 	PanelIDAnnotation      = "__panelId__"
+
+	// This isn't a hard-coded secret token, hence the nolint.
+	//nolint:gosec
+	ScreenshotTokenAnnotation = "__alertScreenshotToken__"
 )
 
 var (
@@ -89,7 +93,11 @@ var (
 		RuleUIDLabel:      {},
 		NamespaceUIDLabel: {},
 	}
-	InternalAnnotationNameSet = map[string]struct{}{}
+	InternalAnnotationNameSet = map[string]struct{}{
+		DashboardUIDAnnotation:    {},
+		PanelIDAnnotation:         {},
+		ScreenshotTokenAnnotation: {},
+	}
 )
 
 // AlertRule is the model for alert rules in unified alerting.