Prometheus: Enable prometheusDataplane by default (#67100)

* Prometheus: Enable prometheusDataplane by default
and related mitigation toggle dataplaneFrontendFallback
original PRs with the toggles:
 - https://github.com/grafana/grafana/pull/65237
 - https://github.com/grafana/grafana/pull/62694

pkg/services/featuremgmt/registry.go

@@ -429,7 +429,8 @@ var (
 		{
 			Name:        "prometheusDataplane",
 			Description: "Changes responses to from Prometheus to be compliant with the dataplane specification. In particular it sets the numeric Field.Name from 'Value' to the value of the `__name__` label when present.",
-			State:       FeatureStateAlpha,
+			Expression:  "true",
+			State:       FeatureStateStable,
 			Owner:       grafanaObservabilityMetricsSquad,
 		},
 		{
@@ -438,6 +439,20 @@ var (
 			State:       FeatureStateAlpha,
 			Owner:       grafanaObservabilityLogsSquad,
 		},
+		{
+			Name:         "dataplaneFrontendFallback",
+			Description:  "Support dataplane contract field name change for transformations and field name matchers where the name is different",
+			State:        FeatureStateStable,
+			FrontendOnly: true,
+			Expression:   "true",
+			Owner:        grafanaObservabilityMetricsSquad,
+		},
+		{
+			Name:        "disableSSEDataplane",
+			Description: "Disables dataplane specific processing in server side expressions.",
+			State:       FeatureStateAlpha,
+			Owner:       grafanaObservabilityMetricsSquad,
+		},
 		{
 			Name:        "alertStateHistoryLokiSecondary",
 			Description: "Enable Grafana to write alert state history to an external Loki instance in addition to Grafana annotations.",
@@ -456,12 +471,6 @@ var (
 			State:       FeatureStateAlpha,
 			Owner:       grafanaAlertingSquad,
 		},
-		{
-			Name:        "disableSSEDataplane",
-			Description: "Disables dataplane specific processing in server side expressions.",
-			State:       FeatureStateAlpha,
-			Owner:       grafanaObservabilityMetricsSquad,
-		},
 		{
 			Name:        "unifiedRequestLog",
 			Description: "Writes error logs to the request logger",
@@ -487,13 +496,6 @@ var (
 			RequiresDevMode: true,
 			Owner:           grafanaAuthnzSquad,
 		},
-		{
-			Name:         "dataplaneFrontendFallback",
-			Description:  "Support dataplane contract field name change for transformations and field name matchers where the name is different",
-			State:        FeatureStateAlpha,
-			FrontendOnly: true,
-			Owner:        grafanaObservabilityMetricsSquad,
-		},
 		{
 			Name:            "useCachingService",
 			Description:     "When turned on, the new query and resource caching implementation using a wire service inject will be used in place of the previous middleware implementation",

pkg/services/featuremgmt/toggles_gen.csv

@@ -62,17 +62,17 @@ timeSeriesTable,alpha,@grafana/app-o11y,false,false,false,true
 prometheusResourceBrowserCache,alpha,@grafana/observability-metrics,false,false,false,true
 influxdbBackendMigration,alpha,@grafana/observability-metrics,false,false,false,true
 clientTokenRotation,alpha,@grafana/grafana-authnz-team,false,false,false,false
-prometheusDataplane,alpha,@grafana/observability-metrics,false,false,false,false
+prometheusDataplane,stable,@grafana/observability-metrics,false,false,false,false
 lokiMetricDataplane,alpha,@grafana/observability-logs,false,false,false,false
+dataplaneFrontendFallback,stable,@grafana/observability-metrics,false,false,false,true
+disableSSEDataplane,alpha,@grafana/observability-metrics,false,false,false,false
 alertStateHistoryLokiSecondary,alpha,@grafana/alerting-squad,false,false,false,false
 alertStateHistoryLokiPrimary,alpha,@grafana/alerting-squad,false,false,false,false
 alertStateHistoryLokiOnly,alpha,@grafana/alerting-squad,false,false,false,false
-disableSSEDataplane,alpha,@grafana/observability-metrics,false,false,false,false
 unifiedRequestLog,alpha,@grafana/backend-platform,false,false,false,false
 renderAuthJWT,beta,@grafana/grafana-as-code,false,false,false,false
 pyroscopeFlameGraph,alpha,@grafana/observability-traces-and-profiling,false,false,false,false
 externalServiceAuth,alpha,@grafana/grafana-authnz-team,true,false,false,false
-dataplaneFrontendFallback,alpha,@grafana/observability-metrics,false,false,false,true
 useCachingService,stable,@grafana/grafana-operator-experience-squad,false,false,true,false
 enableElasticsearchBackendQuerying,beta,@grafana/observability-logs,false,false,false,false
 authenticationConfigUI,alpha,@grafana/grafana-authnz-team,false,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -267,6 +267,14 @@ const (
 	// Changes responses from Loki to be compliant with the dataplane specification.
 	FlagLokiMetricDataplane = "lokiMetricDataplane"
 
+	// FlagDataplaneFrontendFallback
+	// Support dataplane contract field name change for transformations and field name matchers where the name is different
+	FlagDataplaneFrontendFallback = "dataplaneFrontendFallback"
+
+	// FlagDisableSSEDataplane
+	// Disables dataplane specific processing in server side expressions.
+	FlagDisableSSEDataplane = "disableSSEDataplane"
+
 	// FlagAlertStateHistoryLokiSecondary
 	// Enable Grafana to write alert state history to an external Loki instance in addition to Grafana annotations.
 	FlagAlertStateHistoryLokiSecondary = "alertStateHistoryLokiSecondary"
@@ -279,10 +287,6 @@ const (
 	// Disable Grafana alerts from emitting annotations when a remote Loki instance is available.
 	FlagAlertStateHistoryLokiOnly = "alertStateHistoryLokiOnly"
 
-	// FlagDisableSSEDataplane
-	// Disables dataplane specific processing in server side expressions.
-	FlagDisableSSEDataplane = "disableSSEDataplane"
-
 	// FlagUnifiedRequestLog
 	// Writes error logs to the request logger
 	FlagUnifiedRequestLog = "unifiedRequestLog"
@@ -299,10 +303,6 @@ const (
 	// Starts an OAuth2 authentication provider for external services
 	FlagExternalServiceAuth = "externalServiceAuth"
 
-	// FlagDataplaneFrontendFallback
-	// Support dataplane contract field name change for transformations and field name matchers where the name is different
-	FlagDataplaneFrontendFallback = "dataplaneFrontendFallback"
-
 	// FlagUseCachingService
 	// When turned on, the new query and resource caching implementation using a wire service inject will be used in place of the previous middleware implementation
 	FlagUseCachingService = "useCachingService"