unified-storage: expose ring replication factor config (#106345)

* config ring replication factor

* change default

* rename

* fix test

* fix

pkg/setting/setting.go

@@ -576,6 +576,7 @@ type Cfg struct {
 	MemberlistJoinMember                       string
 	MemberlistClusterLabel                     string
 	MemberlistClusterLabelVerificationDisabled bool
+	SearchRingReplicationFactor                int
 	InstanceID                                 string
 	SprinklesApiServer                         string
 	SprinklesApiServerPageLimit                int

pkg/setting/setting_unified_storage.go

@@ -65,6 +65,7 @@ func (cfg *Cfg) setUnifiedStorageConfig() {
 	cfg.MemberlistJoinMember = section.Key("memberlist_join_member").String()
 	cfg.MemberlistClusterLabel = section.Key("memberlist_cluster_label").String()
 	cfg.MemberlistClusterLabelVerificationDisabled = section.Key("memberlist_cluster_label_verification_disabled").MustBool(false)
+	cfg.SearchRingReplicationFactor = section.Key("search_ring_replication_factor").MustInt(1)
 	cfg.InstanceID = section.Key("instance_id").String()
 	cfg.IndexFileThreshold = section.Key("index_file_threshold").MustInt(10)
 	cfg.IndexMinCount = section.Key("index_min_count").MustInt(1)