[#373] metrics: Move labels to consts

To unify label naming all lable keys and other consts are moved to
one file.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

pkg/metrics/consts.go

@@ -1,20 +1,45 @@
 package metrics
 
 const (
+	namespace          = "frostfs_node"
+	innerRingNamespace = "frostfs_ir"
+
 	fstreeSubSystem         = "fstree"
 	blobstoreSubSystem      = "blobstore"
 	blobovnizaTreeSubSystem = "blobovniza_tree"
 	metabaseSubSystem       = "metabase"
 	piloramaSubSystem       = "pilorama"
+	engineSubsystem         = "engine"
+	gcSubsystem             = "garbage_collector"
+	innerRingSubsystem      = "ir"
+	morphSubsystem          = "morph"
+	morphCacheSubsystem     = "morphcache"
+	objectSubsystem         = "object"
+	replicatorSubsystem     = "replicator"
+	stateSubsystem          = "state"
+	treeServiceSubsystem    = "treeservice"
+	writeCacheSubsystem     = "writecache"
 
-	successLabel       = "success"
-	shardIDLabel       = "shardID"
-	modeLabel          = "mode"
-	pathLabel          = "path"
-	methodLabel        = "method"
-	withStorageIDLabel = "withStorageID"
+	successLabel          = "success"
+	shardIDLabel          = "shard_id"
+	modeLabel             = "mode"
+	pathLabel             = "path"
+	methodLabel           = "method"
+	withStorageIDLabel    = "with_storage_id"
+	statusLabel           = "status"
+	objectTypeLabel       = "object_type"
+	typeLabel             = "type"
+	notificationTypeLabel = "notification_type"
+	invokeTypeLabel       = "invoke_type"
+	contractLabel         = "contract"
+	containerIDLabelKey   = "cid"
+	storageLabel          = "storage"
+	operationLabel        = "operation"
 
 	readWriteMode = "READ_WRITE"
 	readOnlyMode  = "READ_ONLY"
 	closedMode    = "CLOSED"
+
+	failedToDeleteStatus = "failed_to_delete"
+	deletedStatus        = "deleted"
 )