InfluxDB: SQL Support (#72167)

* Add influxdbSqlSupport feature toggle

* Add SQL option to the config page

* Add SQL backend

* Add metadata support in config page

* Implement unified querying

* Fix healthcheck query

* fsql tests

* secure grpc by default

* code cleanup

* Query handing for sql mode

* Implement a placeholder sql editor

* Fix query language dropdown

* go mod updates

* make lint-go

* more make lint-go

* remove unused runQuery

* switch statements with default case

* linting again

pkg/services/featuremgmt/registry.go

@@ -683,5 +683,13 @@ var (
 			RequiresRestart: true,
 			HideFromDocs:    true,
 		},
+		{
+			Name:            "influxdbSqlSupport",
+			Description:     "Enable InfluxDB SQL query language support with new querying UI",
+			Stage:           FeatureStageExperimental,
+			FrontendOnly:    false,
+			Owner:           grafanaObservabilityMetricsSquad,
+			RequiresRestart: false,
+		},
 	}
 )

pkg/services/featuremgmt/toggles_gen.csv

@@ -98,3 +98,4 @@ azureMonitorDataplane,GA,@grafana/partner-datasources,false,false,false,false
 permissionsFilterRemoveSubquery,experimental,@grafana/backend-platform,false,false,false,false
 prometheusConfigOverhaulAuth,experimental,@grafana/observability-metrics,false,false,false,false
 configurableSchedulerTick,experimental,@grafana/alerting-squad,false,false,true,false
+influxdbSqlSupport,experimental,@grafana/observability-metrics,false,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -402,4 +402,8 @@ const (
 	// FlagConfigurableSchedulerTick
 	// Enable changing the scheduler base interval via configuration option unified_alerting.scheduler_tick_interval
 	FlagConfigurableSchedulerTick = "configurableSchedulerTick"
+
+	// FlagInfluxdbSqlSupport
+	// Enable InfluxDB SQL query language support with new querying UI
+	FlagInfluxdbSqlSupport = "influxdbSqlSupport"
 )