[#536] Add rule ID generation

Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>

api/handler/lifecycle.go

@@ -17,6 +17,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs/util"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
+	"github.com/google/uuid"
 )
 
 const (
@@ -145,7 +146,16 @@ func checkLifecycleConfiguration(ctx context.Context, cfg *data.LifecycleConfigu
 
 	ids := make(map[string]struct{}, len(cfg.Rules))
 	for i, rule := range cfg.Rules {
-		if _, ok := ids[rule.ID]; ok && rule.ID != "" {
+		if rule.ID == "" {
+			id, err := uuid.NewRandom()
+			if err != nil {
+				return fmt.Errorf("generate uuid: %w", err)
+			}
+			cfg.Rules[i].ID = id.String()
+			rule.ID = id.String()
+		}
+
+		if _, ok := ids[rule.ID]; ok {
 			return fmt.Errorf("%w: duplicate 'ID': %s", apierr.GetAPIError(apierr.ErrInvalidArgument), rule.ID)
 		}
 		ids[rule.ID] = struct{}{}

api/handler/lifecycle_test.go

@@ -425,6 +425,36 @@ func TestPutBucketLifecycleConfiguration(t *testing.T) {
 	}
 }
 
+func TestPutBucketLifecycleIDGeneration(t *testing.T) {
+	hc := prepareHandlerContext(t)
+
+	bktName := "bucket-lifecycle-id"
+	createBucket(hc, bktName)
+
+	lifecycle := &data.LifecycleConfiguration{
+		Rules: []data.LifecycleRule{
+			{
+				Status: data.LifecycleStatusEnabled,
+				Expiration: &data.LifecycleExpiration{
+					Days: ptr(21),
+				},
+			},
+			{
+				Status: data.LifecycleStatusEnabled,
+				AbortIncompleteMultipartUpload: &data.AbortIncompleteMultipartUpload{
+					DaysAfterInitiation: ptr(14),
+				},
+			},
+		},
+	}
+
+	putBucketLifecycleConfiguration(hc, bktName, lifecycle)
+	cfg := getBucketLifecycleConfiguration(hc, bktName)
+	require.Len(t, cfg.Rules, 2)
+	require.NotEmpty(t, cfg.Rules[0].ID)
+	require.NotEmpty(t, cfg.Rules[1].ID)
+}
+
 func TestPutBucketLifecycleInvalidMD5(t *testing.T) {
 	hc := prepareHandlerContext(t)