@@ -0,0 +7,4 @@
+)
+
+func TestCopiesNumberPicker(t *testing.T) {
+

@@ -154,0 +170,4 @@
+
+		if len(vector) == 0 {
+			l.Warn("skipping the empty vector of copies numbers", zap.Int("index", i))
+			continue

@@ -83,6 +83,7 @@ const ( // Settings.
 	// Policy.
 	cfgPolicyDefault       = "placement_policy.default"
 	cfgPolicyRegionMapFile = "placement_policy.region_mapping"
+	cfgCopiesNumbers       = "placement_policy.copies_numbers"

@@ -81,0 +110,4 @@
+	copiesNumbersSplit := strings.Split(copiesNumbersStr, ",")
+
+	for i := range copiesNumbersSplit {
+		item := strings.ReplaceAll(copiesNumbersSplit[i], " ", "")

@@ -0,0 +40,4 @@
+	})
+
+	t.Run("pick copies number from metadata", func(t *testing.T) {
+		metadata["frostfs-copies-number"] = "7, 8, 9"

@@ -32,6 +35,7 @@ type (
 		DefaultMaxAge              int
 		NotificatorEnabled         bool
 		CopiesNumber               uint32

@@ -150,3 +150,3 @@
 	}
 
-	p.CopiesNumber, err = getCopiesNumberOrDefault(p.Header, h.cfg.CopiesNumber)
+	copiesNumbers, err := h.pickCopiesNumbers(p.Header, bktInfo.LocationConstraint)

@@ -54,2 +52,4 @@
+		Reader:  r.Body,
 	}
 
+	copiesNumbers, err := h.pickCopiesNumbers(parseMetadata(r), bktInfo.LocationConstraint)

@@ -171,0 +177,4 @@
+		Encryption: encryptionParams,
+	}
+
+	copiesNumbers, err := h.pickCopiesNumbers(metadata, dstBktInfo.LocationConstraint)

@@ -121,3 +121,3 @@
-		CopiesNumber:  h.cfg.CopiesNumber,
 	}
 
+	copiesNumbers, err := h.pickCopiesNumbers(parseMetadata(r), bktInfo.LocationConstraint)

@@ -235,2 +227,4 @@
+		Encryption: encryptionParams,
 	}
 
+	copiesNumbers, err := h.pickCopiesNumbers(metadata, bktInfo.LocationConstraint)

@@ -146,3 +146,3 @@
-		CopiesNumber: h.cfg.CopiesNumber,
 	}
 
+	copiesNumbers, err := h.pickCopiesNumbers(parseMetadata(r), bktInfo.LocationConstraint)

@@ -226,0 +230,4 @@
+		NewLock: lock,
+	}
+
+	copiesNumbers, ok := h.cfg.CopiesNumbers[bktInfo.LocationConstraint]

@@ -154,0 +164,4 @@
+			vector32[i] = uint32(vector[i])
+		}
+
+		if constraint == "" {

@@ -128,2 +128,4 @@
   # Path to container policy mapping. The same as '--container-policy' flag for authmate
   region_mapping: /path/to/container/policy.json
+  # Array of locations constraints and their vectors of copies numbers
+  copies_numbers:

@@ -288,0 +285,4 @@
+|------------------|--------------------------------------------------|---------------|---------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `default`        | `string`                                         | yes           | `REP 3`       | Default policy of placing containers in FrostFS. If a user sends a request `CreateBucket` and doesn't define policy for placing of a container in FrostFS, the S3 Gateway will put the container with default policy. |
+| `region_mapping` | `string`                                         | yes           |               | Path to file that maps aws `LocationContraint` values to FrostFS placement policy. The similar to `--container-policy` flag in `frostfs-s3-authmate` util, see in [docs](./authmate.md#containers-policy)             |
+| `copies_numbers` | `[]`[Copies numbers](#copies_numbers-subsection) | no            |               | Array of configured location constraints and their copies numbers.                                                                                                                                                    |

@@ -0,0 +7,4 @@
+)
+
+func TestCopiesNumberPicker(t *testing.T) {
+	var locCosntraints = map[string][]uint32{}

@@ -0,0 +26,4 @@
+		metadata["somekey1"] = "5, 6, 7"
+		expectedCopiesNumbers := []uint32{1}
+
+		actualCopiesNumbers, _ := h.pickCopiesNumbers(metadata, locationConstraint2)

@@ -154,0 +157,4 @@
+	for i := 0; ; i++ {
+		key := cfgCopiesNumbers + "." + strconv.Itoa(i) + "."
+		constraint := v.GetString(key + "location_constraint")
+		vector := v.GetIntSlice(key + "vector")

@@ -154,0 +160,4 @@
+		vector := v.GetStringSlice(key + "vector")
+
+		vector32 := make([]uint32, len(vector))
+		for i := range vector {

@@ -154,0 +164,4 @@
+			parsedValue, err := strconv.ParseUint(vector[i], 10, 32)
+			if err != nil {
+				l.Error("cannot parse copies numbers", zap.Error(err))
+				break