[full-ci] experimental search backport (#5221)

* experimental search backport
fix basic extractor resource name
move escapeQuery regex into global variable
minor pr review changes
rename DebounceDuration env variable
add document title and content when rebuilding bleve resource

Co-authored-by: David Christofas <dchristofas@owncloud.com>

services/search/pkg/command/server.go

@@ -50,13 +50,18 @@ func Server(cfg *config.Config) *cli.Command {
 			mtrcs := metrics.New()
 			mtrcs.BuildInfo.WithLabelValues(version.GetString()).Set(1)
 
-			grpcServer := grpc.Server(
+			grpcServer, teardown, err := grpc.Server(
 				grpc.Config(cfg),
 				grpc.Logger(logger),
 				grpc.Name(cfg.Service.Name),
 				grpc.Context(ctx),
 				grpc.Metrics(mtrcs),
 			)
+			defer teardown()
+			if err != nil {
+				logger.Info().Err(err).Str("transport", "grpc").Msg("Failed to initialize server")
+				return err
+			}
 
 			gr.Add(grpcServer.Run, func(_ error) {
 				logger.Error().
@@ -71,7 +76,6 @@ func Server(cfg *config.Config) *cli.Command {
 				debug.Context(ctx),
 				debug.Config(cfg),
 			)
-
 			if err != nil {
 				logger.Info().Err(err).Str("transport", "debug").Msg("Failed to initialize server")
 				return err