[#373] blobstor: Add metrics

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

pkg/local_object_storage/blobstor/put.go

@@ -3,6 +3,7 @@ package blobstor
 import (
 	"context"
 	"fmt"
+	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
@@ -26,6 +27,15 @@ var ErrNoPlaceFound = logicerr.New("couldn't find a place to store an object")
 // Returns any error encountered that
 // did not allow to completely save the object.
 func (b *BlobStor) Put(ctx context.Context, prm common.PutPrm) (common.PutRes, error) {
+	var (
+		startedAt = time.Now()
+		success   = false
+		size      = 0
+	)
+	defer func() {
+		b.metrics.Put(time.Since(startedAt), size, success)
+	}()
+
 	ctx, span := tracing.StartSpanFromContext(ctx, "BlobStor.Put",
 		trace.WithAttributes(
 			attribute.String("address", prm.Address.EncodeToString()),
@@ -47,11 +57,13 @@ func (b *BlobStor) Put(ctx context.Context, prm common.PutPrm) (common.PutRes, e
 		}
 		prm.RawData = data
 	}
+	size = len(prm.RawData)
 
 	for i := range b.storage {
 		if b.storage[i].Policy == nil || b.storage[i].Policy(prm.Object, prm.RawData) {
 			res, err := b.storage[i].Storage.Put(ctx, prm)
 			if err == nil {
+				success = true
 				logOp(b.log, putOp, prm.Address, b.storage[i].Storage.Type(), res.StorageID)
 			}
 			return res, err