Search: Use new folder when creating a bleve index (#98260)

pkg/storage/unified/sql/server.go

@@ -4,11 +4,13 @@ import (
 	"context"
 	"log/slog"
 	"os"
+	"path/filepath"
 	"strings"
 
-	"github.com/grafana/grafana/pkg/storage/unified/search"
 	"github.com/prometheus/client_golang/prometheus"
 
+	"github.com/grafana/grafana/pkg/storage/unified/search"
+
 	infraDB "github.com/grafana/grafana/pkg/infra/db"
 	"github.com/grafana/grafana/pkg/infra/tracing"
 	"github.com/grafana/grafana/pkg/services/authz"
@@ -57,12 +59,25 @@ func NewResourceServer(ctx context.Context, db infraDB.DB, cfg *setting.Cfg,
 
 	// Setup the search server
 	if features.IsEnabledGlobally(featuremgmt.FlagUnifiedStorageSearch) {
+		root := cfg.IndexPath
+		if root == "" {
+			root = filepath.Join(cfg.DataPath, "unified-search", "bleve")
+		}
+		err = os.MkdirAll(root, 0750)
+		if err != nil {
+			return nil, err
+		}
+		bleve, err := search.NewBleveBackend(search.BleveOptions{
+			Root:          root,
+			FileThreshold: int64(cfg.IndexFileThreshold), // fewer than X items will use a memory index
+			BatchSize:     cfg.IndexMaxBatchSize,         // This is the batch size for how many objects to add to the index at once
+		}, tracer)
+		if err != nil {
+			return nil, err
+		}
+
 		opts.Search = resource.SearchOptions{
-			Backend: search.NewBleveBackend(search.BleveOptions{
-				Root:          cfg.IndexPath,
-				FileThreshold: int64(cfg.IndexFileThreshold), // fewer than X items will use a memory index
-				BatchSize:     cfg.IndexMaxBatchSize,         // This is the batch size for how many objects to add to the index at once
-			}, tracer),
+			Backend:       bleve,
 			Resources:     docs,
 			WorkerThreads: cfg.IndexWorkers,
 			InitMinCount:  cfg.IndexMinCount,