Influxdb: Re-introduce backend migration feature toggle (#64829)

* Revert "Influxdb: Remove backend migration feature toggle (#61308)"

This reverts commit 67c02f66

* Put feature toggle back

pkg/services/featuremgmt/registry.go

@@ -265,7 +265,7 @@ var (
 			Name:        "cloudWatchCrossAccountQuerying",
 			Description: "Enables cross-account querying in CloudWatch datasources",
 			State:       FeatureStateStable,
-			Expression:  "true", //enabled by default
+			Expression:  "true", // enabled by default
 			Owner:       awsPluginsSquad,
 		},
 		{
@@ -382,7 +382,7 @@ var (
 			Name:         "logsSampleInExplore",
 			Description:  "Enables access to the logs sample feature in Explore",
 			State:        FeatureStateStable,
-			Expression:   "true", //turned on by default
+			Expression:   "true", // turned on by default
 			FrontendOnly: true,
 			Owner:        grafanaObservabilityLogsSquad,
 		},
@@ -434,5 +434,12 @@ var (
 			FrontendOnly: true,
 			Owner:        appO11ySquad,
 		},
+		{
+			Name:         "influxdbBackendMigration",
+			Description:  "Query InfluxDB InfluxQL without the proxy",
+			State:        FeatureStateAlpha,
+			FrontendOnly: true,
+			Owner:        grafanaObservabilityMetricsSquad,
+		},
 	}
 )

pkg/services/featuremgmt/toggles_gen.csv

@@ -64,3 +64,4 @@ drawerDataSourcePicker,alpha,@grafana/grafana-bi-squad,false,false,false,true
 traceqlSearch,alpha,@grafana/observability-traces-and-profiling,false,false,false,true
 prometheusMetricEncyclopedia,alpha,@grafana/observability-metrics,false,false,false,true
 timeSeriesTable,alpha,@grafana/app-o11y,false,false,false,true
+influxdbBackendMigration,alpha,@grafana/observability-metrics,false,false,false,true

pkg/services/featuremgmt/toggles_gen.go

@@ -266,4 +266,8 @@ const (
 	// FlagTimeSeriesTable
 	// Enable time series table transformer & sparkline cell type
 	FlagTimeSeriesTable = "timeSeriesTable"
+
+	// FlagInfluxdbBackendMigration
+	// Query InfluxDB InfluxQL without the proxy
+	FlagInfluxdbBackendMigration = "influxdbBackendMigration"
 )