diff --git a/internal/common/common.go b/internal/common/common.go
index cb6a5d0..26f62cc 100644
--- a/internal/common/common.go
+++ b/internal/common/common.go
@@ -23,8 +23,6 @@ import (
 
 	"agola.io/agola/internal/etcd"
 	"agola.io/agola/internal/objectstorage"
-	"agola.io/agola/internal/objectstorage/posix"
-	"agola.io/agola/internal/objectstorage/s3"
 	"agola.io/agola/internal/services/config"
 	"go.uber.org/zap"
 	errors "golang.org/x/xerrors"
@@ -83,7 +81,7 @@ func NewObjectStorage(c *config.ObjectStorage) (*objectstorage.ObjStorage, error
 
 	switch c.Type {
 	case config.ObjectStorageTypePosix:
-		ost, err = posix.New(c.Path)
+		ost, err = objectstorage.NewPosix(c.Path)
 		if err != nil {
 			return nil, errors.Errorf("failed to create posix object storage: %w", err)
 		}
@@ -102,7 +100,7 @@ func NewObjectStorage(c *config.ObjectStorage) (*objectstorage.ObjStorage, error
 				return nil, errors.Errorf("wrong s3 endpoint scheme %q (must be http or https)", u.Scheme)
 			}
 		}
-		ost, err = s3.New(c.Bucket, c.Location, endpoint, c.AccessKey, c.SecretAccessKey, secure)
+		ost, err = objectstorage.NewS3(c.Bucket, c.Location, endpoint, c.AccessKey, c.SecretAccessKey, secure)
 		if err != nil {
 			return nil, errors.Errorf("failed to create s3 object storage: %w", err)
 		}
diff --git a/internal/datamanager/data.go b/internal/datamanager/data.go
index b510eed..b557e39 100644
--- a/internal/datamanager/data.go
+++ b/internal/datamanager/data.go
@@ -26,7 +26,7 @@ import (
 	"sort"
 	"strings"
 
-	ostypes "agola.io/agola/internal/objectstorage/types"
+	"agola.io/agola/internal/objectstorage"
 	"agola.io/agola/internal/sequence"
 
 	uuid "github.com/satori/go.uuid"
@@ -165,7 +165,7 @@ func (d *DataManager) writeDataSnapshot(ctx context.Context, wals []*WalData) er
 	}
 
 	curDataStatus, err := d.GetLastDataStatus()
-	if err != nil && err != ostypes.ErrNotExist {
+	if err != nil && err != objectstorage.ErrNotExist {
 		return err
 	}
 
@@ -321,10 +321,10 @@ func (d *DataManager) writeDataType(ctx context.Context, wi walIndex, dataType s
 		if actionGroup.DataStatusFile != nil {
 			// TODO(sgotti) instead of reading all entries in memory decode it's contents one by one when needed
 			oldDataf, err := d.ost.ReadObject(d.DataFilePath(dataType, actionGroup.DataStatusFile.ID))
-			if err != nil && err != ostypes.ErrNotExist {
+			if err != nil && err != objectstorage.ErrNotExist {
 				return nil, err
 			}
-			if err != ostypes.ErrNotExist {
+			if err != objectstorage.ErrNotExist {
 				dec := json.NewDecoder(oldDataf)
 				for {
 					var de *DataEntry
@@ -481,7 +481,7 @@ func (d *DataManager) Read(dataType, id string) (io.Reader, error) {
 	var matchingDataFileID string
 	// get the matching data file for the action entry ID
 	if len(curFiles[dataType]) == 0 {
-		return nil, ostypes.ErrNotExist
+		return nil, objectstorage.ErrNotExist
 	}
 
 	matchingDataFileID = curFiles[dataType][0].ID
@@ -507,7 +507,7 @@ func (d *DataManager) Read(dataType, id string) (io.Reader, error) {
 
 	pos, ok := dataFileIndex.Index[id]
 	if !ok {
-		return nil, ostypes.ErrNotExist
+		return nil, objectstorage.ErrNotExist
 	}
 
 	dataf, err := d.ost.ReadObject(d.DataFilePath(dataType, matchingDataFileID))
@@ -560,7 +560,7 @@ func (d *DataManager) GetFirstDataStatusSequences(n int) ([]*sequence.Sequence,
 	}
 
 	if len(dataStatusSequences) == 0 {
-		return nil, ostypes.ErrNotExist
+		return nil, objectstorage.ErrNotExist
 	}
 
 	return dataStatusSequences, nil
@@ -601,7 +601,7 @@ func (d *DataManager) GetLastDataStatusSequences(n int) ([]*sequence.Sequence, e
 	})
 
 	if len(dataStatusSequences) == 0 {
-		return nil, ostypes.ErrNotExist
+		return nil, objectstorage.ErrNotExist
 	}
 
 	return dataStatusSequences, nil
@@ -862,7 +862,7 @@ func (d *DataManager) cleanOldCheckpoints(ctx context.Context, dataStatusSequenc
 			if _, ok := dataStatusPathsMap[object.Path]; !ok {
 				d.log.Infof("removing %q", object.Path)
 				if err := d.ost.DeleteObject(object.Path); err != nil {
-					if err != ostypes.ErrNotExist {
+					if err != objectstorage.ErrNotExist {
 						return err
 					}
 				}
@@ -930,7 +930,7 @@ func (d *DataManager) cleanOldCheckpoints(ctx context.Context, dataStatusSequenc
 		if _, ok := files[pne]; !ok {
 			d.log.Infof("removing %q", object.Path)
 			if err := d.ost.DeleteObject(object.Path); err != nil {
-				if err != ostypes.ErrNotExist {
+				if err != objectstorage.ErrNotExist {
 					return err
 				}
 			}
diff --git a/internal/datamanager/datamanager_test.go b/internal/datamanager/datamanager_test.go
index 703f998..470a223 100644
--- a/internal/datamanager/datamanager_test.go
+++ b/internal/datamanager/datamanager_test.go
@@ -31,8 +31,6 @@ import (
 
 	slog "agola.io/agola/internal/log"
 	"agola.io/agola/internal/objectstorage"
-	"agola.io/agola/internal/objectstorage/posix"
-	ostypes "agola.io/agola/internal/objectstorage/types"
 	"agola.io/agola/internal/testutil"
 	"github.com/google/go-cmp/cmp"
 	errors "golang.org/x/xerrors"
@@ -85,7 +83,7 @@ func TestEtcdReset(t *testing.T) {
 		t.Fatalf("unexpected err: %v", err)
 	}
 
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -195,7 +193,7 @@ func TestEtcdResetWalsGap(t *testing.T) {
 		t.Fatalf("unexpected err: %v", err)
 	}
 
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -324,7 +322,7 @@ func TestConcurrentUpdate(t *testing.T) {
 		t.Fatalf("unexpected err: %v", err)
 	}
 
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -415,7 +413,7 @@ func TestEtcdWalCleaner(t *testing.T) {
 		t.Fatalf("unexpected err: %v", err)
 	}
 
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -488,7 +486,7 @@ func TestReadObject(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -560,8 +558,8 @@ func TestReadObject(t *testing.T) {
 
 	// should not exists
 	_, _, err = dm.ReadObject("datatype01", "object1", nil)
-	if err != ostypes.ErrNotExist {
-		t.Fatalf("expected err %v, got: %v", ostypes.ErrNotExist, err)
+	if err != objectstorage.ErrNotExist {
+		t.Fatalf("expected err %v, got: %v", objectstorage.ErrNotExist, err)
 	}
 	// should exist
 	_, _, err = dm.ReadObject("datatype01", "object19", nil)
@@ -584,8 +582,8 @@ func TestReadObject(t *testing.T) {
 
 	// should not exists
 	_, _, err = dm.ReadObject("datatype01", "object1", nil)
-	if err != ostypes.ErrNotExist {
-		t.Fatalf("expected err %v, got: %v", ostypes.ErrNotExist, err)
+	if err != objectstorage.ErrNotExist {
+		t.Fatalf("expected err %v, got: %v", objectstorage.ErrNotExist, err)
 	}
 	// should exist
 	_, _, err = dm.ReadObject("datatype01", "object19", nil)
@@ -781,7 +779,7 @@ func testCheckpoint(t *testing.T, basePath string) {
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -997,7 +995,7 @@ func TestRead(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -1111,7 +1109,7 @@ func testClean(t *testing.T, basePath string) {
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -1229,7 +1227,7 @@ func testCleanConcurrentCheckpoint(t *testing.T, basePath string) {
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -1358,7 +1356,7 @@ func testStorageWalCleaner(t *testing.T, basePath string) {
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -1498,7 +1496,7 @@ func TestExportImport(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
-	ost, err := posix.New(ostDir)
+	ost, err := objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
@@ -1607,7 +1605,7 @@ func TestExportImport(t *testing.T) {
 		t.Fatalf("unexpected err: %v", err)
 	}
 
-	ost, err = posix.New(ostDir)
+	ost, err = objectstorage.NewPosix(ostDir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
diff --git a/internal/datamanager/wal.go b/internal/datamanager/wal.go
index 4aaabdc..3f67086 100644
--- a/internal/datamanager/wal.go
+++ b/internal/datamanager/wal.go
@@ -26,7 +26,7 @@ import (
 	"time"
 
 	"agola.io/agola/internal/etcd"
-	ostypes "agola.io/agola/internal/objectstorage/types"
+	"agola.io/agola/internal/objectstorage"
 	"agola.io/agola/internal/sequence"
 
 	uuid "github.com/satori/go.uuid"
@@ -132,7 +132,7 @@ func (d *DataManager) ReadObject(dataType, id string, cgNames []string) (io.Read
 
 func (d *DataManager) HasOSTWal(walseq string) (bool, error) {
 	_, err := d.ost.Stat(d.storageWalStatusFile(walseq) + ".committed")
-	if err == ostypes.ErrNotExist {
+	if err == objectstorage.ErrNotExist {
 		return false, nil
 	}
 	if err != nil {
@@ -909,7 +909,7 @@ func (d *DataManager) storageWalCleaner(ctx context.Context) error {
 			walStatusFilePath := d.storageWalDataFile(header.WalDataFileID)
 			d.log.Infof("removing %q", walStatusFilePath)
 			if err := d.ost.DeleteObject(walStatusFilePath); err != nil {
-				if err != ostypes.ErrNotExist {
+				if err != objectstorage.ErrNotExist {
 					return err
 				}
 			}
@@ -917,7 +917,7 @@ func (d *DataManager) storageWalCleaner(ctx context.Context) error {
 			// then remove wal status files
 			d.log.Infof("removing %q", object.Path)
 			if err := d.ost.DeleteObject(object.Path); err != nil {
-				if err != ostypes.ErrNotExist {
+				if err != objectstorage.ErrNotExist {
 					return err
 				}
 			}
@@ -928,7 +928,7 @@ func (d *DataManager) storageWalCleaner(ctx context.Context) error {
 		if ext == ".checkpointed" {
 			d.log.Infof("removing %q", object.Path)
 			if err := d.ost.DeleteObject(object.Path); err != nil {
-				if err != ostypes.ErrNotExist {
+				if err != objectstorage.ErrNotExist {
 					return err
 				}
 			}
@@ -1149,7 +1149,7 @@ func (d *DataManager) InitEtcd(ctx context.Context, dataStatus *DataStatus) erro
 		firstWal = dataStatus.WalSequence
 	} else {
 		dataStatus, err = d.GetLastDataStatus()
-		if err != nil && err != ostypes.ErrNotExist {
+		if err != nil && err != objectstorage.ErrNotExist {
 			return err
 		}
 		// set the first wal to import in etcd if there's a snapshot. In this way we'll
diff --git a/internal/objectstorage/common/atomic.go b/internal/objectstorage/atomic.go
similarity index 86%
rename from internal/objectstorage/common/atomic.go
rename to internal/objectstorage/atomic.go
index 4b14bec..b0a5c32 100644
--- a/internal/objectstorage/common/atomic.go
+++ b/internal/objectstorage/atomic.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package common
+package objectstorage
 
 import (
 	"io"
@@ -22,12 +22,12 @@ import (
 	"strings"
 )
 
-// WriteFileAtomicFunc atomically writes a file, it achieves this by creating a
+// writeFileAtomicFunc atomically writes a file, it achieves this by creating a
 // temporary file and then moving it. writeFunc is the func that will write
 // data to the file.
 // TODO(sgotti) remove left over tmp files if process crashes before calling
 // os.Remove
-func WriteFileAtomicFunc(p, baseDir, tmpDir string, perm os.FileMode, persist bool, writeFunc func(f io.Writer) error) error {
+func writeFileAtomicFunc(p, baseDir, tmpDir string, perm os.FileMode, persist bool, writeFunc func(f io.Writer) error) error {
 	f, err := ioutil.TempFile(tmpDir, "tmpfile")
 	if err != nil {
 		return err
@@ -75,10 +75,12 @@ func WriteFileAtomicFunc(p, baseDir, tmpDir string, perm os.FileMode, persist bo
 	return nil
 }
 
-func WriteFileAtomic(filename, baseDir, tmpDir string, perm os.FileMode, persist bool, data []byte) error {
-	return WriteFileAtomicFunc(filename, baseDir, tmpDir, perm, persist,
+/*
+func writeFileAtomic(filename, baseDir, tmpDir string, perm os.FileMode, persist bool, data []byte) error {
+	return writeFileAtomicFunc(filename, baseDir, tmpDir, perm, persist,
 		func(f io.Writer) error {
 			_, err := f.Write(data)
 			return err
 		})
 }
+*/
diff --git a/internal/objectstorage/objectstorage.go b/internal/objectstorage/objectstorage.go
index 86c4126..08d7f71 100644
--- a/internal/objectstorage/objectstorage.go
+++ b/internal/objectstorage/objectstorage.go
@@ -16,13 +16,14 @@ package objectstorage
 
 import (
 	"io"
+	"time"
 
-	"agola.io/agola/internal/objectstorage/types"
+	errors "golang.org/x/xerrors"
 )
 
 type Storage interface {
-	Stat(filepath string) (*types.ObjectInfo, error)
-	ReadObject(filepath string) (types.ReadSeekCloser, error)
+	Stat(filepath string) (*ObjectInfo, error)
+	ReadObject(filepath string) (ReadSeekCloser, error)
 	// WriteObject atomically writes an object. If size is greater or equal to
 	// zero then only size bytes will be read from data and wrote. If size is
 	// less than zero data will be wrote until EOF. When persist is true the
@@ -30,7 +31,23 @@ type Storage interface {
 	// storage.
 	WriteObject(filepath string, data io.Reader, size int64, persist bool) error
 	DeleteObject(filepath string) error
-	List(prefix, startWith, delimiter string, doneCh <-chan struct{}) <-chan types.ObjectInfo
+	List(prefix, startWith, delimiter string, doneCh <-chan struct{}) <-chan ObjectInfo
+}
+
+var ErrNotExist = errors.New("does not exist")
+
+type ReadSeekCloser interface {
+	io.Reader
+	io.Seeker
+	io.Closer
+}
+
+type ObjectInfo struct {
+	Path         string
+	LastModified time.Time
+	Size         int64
+
+	Err error
 }
 
 // ObjStorage wraps a Storage providing additional helper functions
@@ -47,7 +64,7 @@ func (s *ObjStorage) Delimiter() string {
 	return s.delimiter
 }
 
-func (s *ObjStorage) List(prefix, startWith string, recursive bool, doneCh <-chan struct{}) <-chan types.ObjectInfo {
+func (s *ObjStorage) List(prefix, startWith string, recursive bool, doneCh <-chan struct{}) <-chan ObjectInfo {
 	delimiter := s.delimiter
 	if recursive {
 		delimiter = ""
diff --git a/internal/objectstorage/objectstorage_test.go b/internal/objectstorage/objectstorage_test.go
index ce04a60..7e6a07f 100644
--- a/internal/objectstorage/objectstorage_test.go
+++ b/internal/objectstorage/objectstorage_test.go
@@ -24,21 +24,17 @@ import (
 	"reflect"
 	"strings"
 	"testing"
-
-	"agola.io/agola/internal/objectstorage/posix"
-	"agola.io/agola/internal/objectstorage/posixflat"
-	"agola.io/agola/internal/objectstorage/s3"
 )
 
-func setupPosix(t *testing.T, dir string) (*posix.PosixStorage, error) {
-	return posix.New(path.Join(dir, "posix"))
+func setupPosix(t *testing.T, dir string) (*PosixStorage, error) {
+	return NewPosix(path.Join(dir, "posix"))
 }
 
-func setupPosixFlat(t *testing.T, dir string) (*posixflat.PosixFlatStorage, error) {
-	return posixflat.New(path.Join(dir, "posixflat"))
+func setupPosixFlat(t *testing.T, dir string) (*PosixFlatStorage, error) {
+	return NewPosixFlat(path.Join(dir, "posixflat"))
 }
 
-func setupS3(t *testing.T, dir string) (*s3.S3Storage, error) {
+func setupS3(t *testing.T, dir string) (*S3Storage, error) {
 	minioEndpoint := os.Getenv("MINIO_ENDPOINT")
 	minioAccessKey := os.Getenv("MINIO_ACCESSKEY")
 	minioSecretKey := os.Getenv("MINIO_SECRETKEY")
@@ -47,7 +43,7 @@ func setupS3(t *testing.T, dir string) (*s3.S3Storage, error) {
 		return nil, nil
 	}
 
-	return s3.New(filepath.Base(dir), "", minioEndpoint, minioAccessKey, minioSecretKey, false)
+	return NewS3(filepath.Base(dir), "", minioEndpoint, minioAccessKey, minioSecretKey, false)
 }
 
 func TestList(t *testing.T) {
@@ -272,7 +268,7 @@ func TestList(t *testing.T) {
 		for sname, s := range tt.s {
 			t.Run(fmt.Sprintf("test with storage type %s", sname), func(t *testing.T) {
 				switch s := s.(type) {
-				case *s3.S3Storage:
+				case *S3Storage:
 					if s == nil {
 						t.SkipNow()
 					}
@@ -336,7 +332,7 @@ func TestWriteObject(t *testing.T) {
 	for sname, s := range map[string]Storage{"posix": ps, "posixflat": pfs, "minio": s3s} {
 		t.Run(fmt.Sprintf("test with storage type %s", sname), func(t *testing.T) {
 			switch s := s.(type) {
-			case *s3.S3Storage:
+			case *S3Storage:
 				if s == nil {
 					t.SkipNow()
 				}
diff --git a/internal/objectstorage/posix/posix.go b/internal/objectstorage/posix.go
similarity index 80%
rename from internal/objectstorage/posix/posix.go
rename to internal/objectstorage/posix.go
index 3364a03..75e1ff6 100644
--- a/internal/objectstorage/posix/posix.go
+++ b/internal/objectstorage/posix.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package posix
+package objectstorage
 
 import (
 	"io"
@@ -21,9 +21,6 @@ import (
 	"path/filepath"
 	"strings"
 
-	"agola.io/agola/internal/objectstorage/common"
-	"agola.io/agola/internal/objectstorage/types"
-
 	errors "golang.org/x/xerrors"
 )
 
@@ -37,7 +34,7 @@ type PosixStorage struct {
 	tmpDir  string
 }
 
-func New(baseDir string) (*PosixStorage, error) {
+func NewPosix(baseDir string) (*PosixStorage, error) {
 	if err := os.MkdirAll(baseDir, 0770); err != nil {
 		return nil, err
 	}
@@ -59,7 +56,7 @@ func (s *PosixStorage) fsPath(p string) (string, error) {
 	return filepath.Join(s.dataDir, p), nil
 }
 
-func (s *PosixStorage) Stat(p string) (*types.ObjectInfo, error) {
+func (s *PosixStorage) Stat(p string) (*ObjectInfo, error) {
 	fspath, err := s.fsPath(p)
 	if err != nil {
 		return nil, err
@@ -68,15 +65,15 @@ func (s *PosixStorage) Stat(p string) (*types.ObjectInfo, error) {
 	fi, err := os.Stat(fspath)
 	if err != nil {
 		if os.IsNotExist(err) {
-			return nil, types.ErrNotExist
+			return nil, ErrNotExist
 		}
 		return nil, err
 	}
 
-	return &types.ObjectInfo{Path: p, LastModified: fi.ModTime(), Size: fi.Size()}, nil
+	return &ObjectInfo{Path: p, LastModified: fi.ModTime(), Size: fi.Size()}, nil
 }
 
-func (s *PosixStorage) ReadObject(p string) (types.ReadSeekCloser, error) {
+func (s *PosixStorage) ReadObject(p string) (ReadSeekCloser, error) {
 	fspath, err := s.fsPath(p)
 	if err != nil {
 		return nil, err
@@ -84,7 +81,7 @@ func (s *PosixStorage) ReadObject(p string) (types.ReadSeekCloser, error) {
 
 	f, err := os.Open(fspath)
 	if err != nil && os.IsNotExist(err) {
-		return nil, types.ErrNotExist
+		return nil, ErrNotExist
 	}
 	return f, err
 }
@@ -103,7 +100,7 @@ func (s *PosixStorage) WriteObject(p string, data io.Reader, size int64, persist
 	if size >= 0 {
 		r = io.LimitReader(data, size)
 	}
-	return common.WriteFileAtomicFunc(fspath, s.dataDir, s.tmpDir, 0660, persist, func(f io.Writer) error {
+	return writeFileAtomicFunc(fspath, s.dataDir, s.tmpDir, 0660, persist, func(f io.Writer) error {
 		_, err := io.Copy(f, r)
 		return err
 	})
@@ -117,7 +114,7 @@ func (s *PosixStorage) DeleteObject(p string) error {
 
 	if err := os.Remove(fspath); err != nil {
 		if os.IsNotExist(err) {
-			return types.ErrNotExist
+			return ErrNotExist
 		}
 		return err
 	}
@@ -151,16 +148,16 @@ func (s *PosixStorage) DeleteObject(p string) error {
 	return nil
 }
 
-func (s *PosixStorage) List(prefix, startWith, delimiter string, doneCh <-chan struct{}) <-chan types.ObjectInfo {
-	objectCh := make(chan types.ObjectInfo, 1)
+func (s *PosixStorage) List(prefix, startWith, delimiter string, doneCh <-chan struct{}) <-chan ObjectInfo {
+	objectCh := make(chan ObjectInfo, 1)
 
 	if len(delimiter) > 1 {
-		objectCh <- types.ObjectInfo{Err: errors.Errorf("wrong delimiter %q", delimiter)}
+		objectCh <- ObjectInfo{Err: errors.Errorf("wrong delimiter %q", delimiter)}
 		return objectCh
 	}
 
 	if startWith != "" && !strings.Contains(startWith, prefix) {
-		objectCh <- types.ObjectInfo{Err: errors.Errorf("wrong startwith value %q for prefix %q", startWith, prefix)}
+		objectCh <- ObjectInfo{Err: errors.Errorf("wrong startwith value %q for prefix %q", startWith, prefix)}
 		return objectCh
 	}
 
@@ -182,7 +179,7 @@ func (s *PosixStorage) List(prefix, startWith, delimiter string, doneCh <-chan s
 		startWith = strings.TrimPrefix(startWith, "/")
 	}
 
-	go func(objectCh chan<- types.ObjectInfo) {
+	go func(objectCh chan<- ObjectInfo) {
 		defer close(objectCh)
 		err := filepath.Walk(root, func(ep string, info os.FileInfo, err error) error {
 			if err != nil && !os.IsNotExist(err) {
@@ -219,7 +216,7 @@ func (s *PosixStorage) List(prefix, startWith, delimiter string, doneCh <-chan s
 			if strings.HasPrefix(p, prefix) && p > startWith {
 				select {
 				// Send object content.
-				case objectCh <- types.ObjectInfo{Path: p, LastModified: info.ModTime(), Size: info.Size()}:
+				case objectCh <- ObjectInfo{Path: p, LastModified: info.ModTime(), Size: info.Size()}:
 				// If receives done from the caller, return here.
 				case <-doneCh:
 					return io.EOF
@@ -229,7 +226,7 @@ func (s *PosixStorage) List(prefix, startWith, delimiter string, doneCh <-chan s
 			return nil
 		})
 		if err != nil && err != io.EOF {
-			objectCh <- types.ObjectInfo{
+			objectCh <- ObjectInfo{
 				Err: err,
 			}
 			return
diff --git a/internal/objectstorage/posix/posix_test.go b/internal/objectstorage/posix_test.go
similarity index 94%
rename from internal/objectstorage/posix/posix_test.go
rename to internal/objectstorage/posix_test.go
index aca1a2e..e5f3a39 100644
--- a/internal/objectstorage/posix/posix_test.go
+++ b/internal/objectstorage/posix_test.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package posix
+package objectstorage
 
 import (
 	"bytes"
@@ -22,7 +22,7 @@ import (
 	"testing"
 )
 
-func TestDeleteObject(t *testing.T) {
+func TestPosixDeleteObject(t *testing.T) {
 	objects := []string{"☺☺☺☺a☺☺☺☺☺☺b☺☺☺☺", "s3/is/nota/fil.fa", "s3/is/not/a/file///system/fi%l%%e01"}
 
 	dir, err := ioutil.TempDir("", "objectstorage")
@@ -31,7 +31,7 @@ func TestDeleteObject(t *testing.T) {
 	}
 	//defer os.RemoveAll(dir)
 
-	ls, err := New(dir)
+	ls, err := NewPosix(dir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
diff --git a/internal/objectstorage/posixflat/posixflat.go b/internal/objectstorage/posixflat.go
similarity index 88%
rename from internal/objectstorage/posixflat/posixflat.go
rename to internal/objectstorage/posixflat.go
index cdcdd6e..85dbad5 100644
--- a/internal/objectstorage/posixflat/posixflat.go
+++ b/internal/objectstorage/posixflat.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package posixflat
+package objectstorage
 
 import (
 	"io"
@@ -23,15 +23,10 @@ import (
 	"strings"
 	"unicode/utf8"
 
-	"agola.io/agola/internal/objectstorage/common"
-	"agola.io/agola/internal/objectstorage/types"
-
 	errors "golang.org/x/xerrors"
 )
 
 const (
-	dataDirName = "data"
-	tmpDirName  = "tmp"
 	splitLength = 8
 )
 
@@ -210,7 +205,7 @@ type PosixFlatStorage struct {
 	tmpDir  string
 }
 
-func New(baseDir string) (*PosixFlatStorage, error) {
+func NewPosixFlat(baseDir string) (*PosixFlatStorage, error) {
 	if err := os.MkdirAll(baseDir, 0770); err != nil {
 		return nil, err
 	}
@@ -235,7 +230,7 @@ func (s *PosixFlatStorage) fsPath(p string) (string, error) {
 	return filepath.Join(s.dataDir, escape(p)), nil
 }
 
-func (s *PosixFlatStorage) Stat(p string) (*types.ObjectInfo, error) {
+func (s *PosixFlatStorage) Stat(p string) (*ObjectInfo, error) {
 	fspath, err := s.fsPath(p)
 	if err != nil {
 		return nil, err
@@ -244,15 +239,15 @@ func (s *PosixFlatStorage) Stat(p string) (*types.ObjectInfo, error) {
 	fi, err := os.Stat(fspath)
 	if err != nil {
 		if os.IsNotExist(err) {
-			return nil, types.ErrNotExist
+			return nil, ErrNotExist
 		}
 		return nil, err
 	}
 
-	return &types.ObjectInfo{Path: p, LastModified: fi.ModTime(), Size: fi.Size()}, nil
+	return &ObjectInfo{Path: p, LastModified: fi.ModTime(), Size: fi.Size()}, nil
 }
 
-func (s *PosixFlatStorage) ReadObject(p string) (types.ReadSeekCloser, error) {
+func (s *PosixFlatStorage) ReadObject(p string) (ReadSeekCloser, error) {
 	fspath, err := s.fsPath(p)
 	if err != nil {
 		return nil, err
@@ -260,7 +255,7 @@ func (s *PosixFlatStorage) ReadObject(p string) (types.ReadSeekCloser, error) {
 
 	f, err := os.Open(fspath)
 	if err != nil && os.IsNotExist(err) {
-		return nil, types.ErrNotExist
+		return nil, ErrNotExist
 	}
 	return f, err
 }
@@ -279,7 +274,7 @@ func (s *PosixFlatStorage) WriteObject(p string, data io.Reader, size int64, per
 	if size >= 0 {
 		r = io.LimitReader(data, size)
 	}
-	return common.WriteFileAtomicFunc(fspath, s.dataDir, s.tmpDir, 0660, persist, func(f io.Writer) error {
+	return writeFileAtomicFunc(fspath, s.dataDir, s.tmpDir, 0660, persist, func(f io.Writer) error {
 		_, err := io.Copy(f, r)
 		return err
 	})
@@ -293,7 +288,7 @@ func (s *PosixFlatStorage) DeleteObject(p string) error {
 
 	if err := os.Remove(fspath); err != nil {
 		if os.IsNotExist(err) {
-			return types.ErrNotExist
+			return ErrNotExist
 		}
 		return err
 	}
@@ -327,16 +322,16 @@ func (s *PosixFlatStorage) DeleteObject(p string) error {
 	return nil
 }
 
-func (s *PosixFlatStorage) List(prefix, startWith, delimiter string, doneCh <-chan struct{}) <-chan types.ObjectInfo {
-	objectCh := make(chan types.ObjectInfo, 1)
+func (s *PosixFlatStorage) List(prefix, startWith, delimiter string, doneCh <-chan struct{}) <-chan ObjectInfo {
+	objectCh := make(chan ObjectInfo, 1)
 
 	if len(delimiter) > 1 {
-		objectCh <- types.ObjectInfo{Err: errors.Errorf("wrong delimiter %q", delimiter)}
+		objectCh <- ObjectInfo{Err: errors.Errorf("wrong delimiter %q", delimiter)}
 		return objectCh
 	}
 
 	if startWith != "" && !strings.Contains(startWith, prefix) {
-		objectCh <- types.ObjectInfo{Err: errors.Errorf("wrong startwith value %q for prefix %q", startWith, prefix)}
+		objectCh <- ObjectInfo{Err: errors.Errorf("wrong startwith value %q for prefix %q", startWith, prefix)}
 		return objectCh
 	}
 
@@ -358,7 +353,7 @@ func (s *PosixFlatStorage) List(prefix, startWith, delimiter string, doneCh <-ch
 		startWith = strings.TrimPrefix(startWith, "/")
 	}
 
-	go func(objectCh chan<- types.ObjectInfo) {
+	go func(objectCh chan<- ObjectInfo) {
 		var prevp string
 		defer close(objectCh)
 		err := filepath.Walk(root, func(ep string, info os.FileInfo, err error) error {
@@ -416,7 +411,7 @@ func (s *PosixFlatStorage) List(prefix, startWith, delimiter string, doneCh <-ch
 				if p > prevp {
 					select {
 					// Send object content.
-					case objectCh <- types.ObjectInfo{Path: p, LastModified: info.ModTime(), Size: info.Size()}:
+					case objectCh <- ObjectInfo{Path: p, LastModified: info.ModTime(), Size: info.Size()}:
 					// If receives done from the caller, return here.
 					case <-doneCh:
 						return io.EOF
@@ -428,7 +423,7 @@ func (s *PosixFlatStorage) List(prefix, startWith, delimiter string, doneCh <-ch
 			return nil
 		})
 		if err != nil && err != io.EOF {
-			objectCh <- types.ObjectInfo{
+			objectCh <- ObjectInfo{
 				Err: err,
 			}
 			return
diff --git a/internal/objectstorage/posixflat/posixflat_test.go b/internal/objectstorage/posixflat_test.go
similarity index 97%
rename from internal/objectstorage/posixflat/posixflat_test.go
rename to internal/objectstorage/posixflat_test.go
index 4fc4328..2741243 100644
--- a/internal/objectstorage/posixflat/posixflat_test.go
+++ b/internal/objectstorage/posixflat_test.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package posixflat
+package objectstorage
 
 import (
 	"bytes"
@@ -77,7 +77,7 @@ func TestEscapeUnescape(t *testing.T) {
 	}
 }
 
-func TestDeleteObject(t *testing.T) {
+func TestPosixFlatDeleteObject(t *testing.T) {
 	objects := []string{"/", "//", "☺☺☺☺a☺☺☺☺☺☺b☺☺☺☺", "s3/is/nota/fil.fa", "s3/is/not/a/file///system/fi%l%%e01"}
 
 	dir, err := ioutil.TempDir("", "objectstorage")
@@ -86,7 +86,7 @@ func TestDeleteObject(t *testing.T) {
 	}
 	//defer os.RemoveAll(dir)
 
-	ls, err := New(dir)
+	ls, err := NewPosixFlat(dir)
 	if err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
diff --git a/internal/objectstorage/s3/s3.go b/internal/objectstorage/s3.go
similarity index 85%
rename from internal/objectstorage/s3/s3.go
rename to internal/objectstorage/s3.go
index 06b28bd..da33d1c 100644
--- a/internal/objectstorage/s3/s3.go
+++ b/internal/objectstorage/s3.go
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package s3
+package objectstorage
 
 import (
 	"io"
@@ -21,8 +21,6 @@ import (
 	"os"
 	"strings"
 
-	"agola.io/agola/internal/objectstorage/types"
-
 	minio "github.com/minio/minio-go"
 	errors "golang.org/x/xerrors"
 )
@@ -34,7 +32,7 @@ type S3Storage struct {
 	minioCore *minio.Core
 }
 
-func New(bucket, location, endpoint, accessKeyID, secretAccessKey string, secure bool) (*S3Storage, error) {
+func NewS3(bucket, location, endpoint, accessKeyID, secretAccessKey string, secure bool) (*S3Storage, error) {
 	minioClient, err := minio.New(endpoint, accessKeyID, secretAccessKey, secure)
 	if err != nil {
 		return nil, err
@@ -62,24 +60,24 @@ func New(bucket, location, endpoint, accessKeyID, secretAccessKey string, secure
 	}, nil
 }
 
-func (s *S3Storage) Stat(p string) (*types.ObjectInfo, error) {
+func (s *S3Storage) Stat(p string) (*ObjectInfo, error) {
 	oi, err := s.minioClient.StatObject(s.bucket, p, minio.StatObjectOptions{})
 	if err != nil {
 		merr := minio.ToErrorResponse(err)
 		if merr.StatusCode == http.StatusNotFound {
-			return nil, types.ErrNotExist
+			return nil, ErrNotExist
 		}
 		return nil, merr
 	}
 
-	return &types.ObjectInfo{Path: p, LastModified: oi.LastModified, Size: oi.Size}, nil
+	return &ObjectInfo{Path: p, LastModified: oi.LastModified, Size: oi.Size}, nil
 }
 
-func (s *S3Storage) ReadObject(filepath string) (types.ReadSeekCloser, error) {
+func (s *S3Storage) ReadObject(filepath string) (ReadSeekCloser, error) {
 	if _, err := s.minioClient.StatObject(s.bucket, filepath, minio.StatObjectOptions{}); err != nil {
 		merr := minio.ToErrorResponse(err)
 		if merr.StatusCode == http.StatusNotFound {
-			return nil, types.ErrNotExist
+			return nil, ErrNotExist
 		}
 		return nil, merr
 	}
@@ -120,11 +118,11 @@ func (s *S3Storage) DeleteObject(filepath string) error {
 	return s.minioClient.RemoveObject(s.bucket, filepath)
 }
 
-func (s *S3Storage) List(prefix, startWith, delimiter string, doneCh <-chan struct{}) <-chan types.ObjectInfo {
-	objectCh := make(chan types.ObjectInfo, 1)
+func (s *S3Storage) List(prefix, startWith, delimiter string, doneCh <-chan struct{}) <-chan ObjectInfo {
+	objectCh := make(chan ObjectInfo, 1)
 
 	if len(delimiter) > 1 {
-		objectCh <- types.ObjectInfo{
+		objectCh <- ObjectInfo{
 			Err: errors.Errorf("wrong delimiter %q", delimiter),
 		}
 		return objectCh
@@ -139,7 +137,7 @@ func (s *S3Storage) List(prefix, startWith, delimiter string, doneCh <-chan stru
 	}
 
 	// Initiate list objects goroutine here.
-	go func(objectCh chan<- types.ObjectInfo) {
+	go func(objectCh chan<- ObjectInfo) {
 		defer close(objectCh)
 		// Save continuationToken for next request.
 		var continuationToken string
@@ -147,7 +145,7 @@ func (s *S3Storage) List(prefix, startWith, delimiter string, doneCh <-chan stru
 			// Get list of objects a maximum of 1000 per request.
 			result, err := s.minioCore.ListObjectsV2(s.bucket, prefix, continuationToken, false, delimiter, 1000, startWith)
 			if err != nil {
-				objectCh <- types.ObjectInfo{
+				objectCh <- ObjectInfo{
 					Err: err,
 				}
 				return
@@ -157,7 +155,7 @@ func (s *S3Storage) List(prefix, startWith, delimiter string, doneCh <-chan stru
 			for _, object := range result.Contents {
 				select {
 				// Send object content.
-				case objectCh <- types.ObjectInfo{Path: object.Key, LastModified: object.LastModified, Size: object.Size}:
+				case objectCh <- ObjectInfo{Path: object.Key, LastModified: object.LastModified, Size: object.Size}:
 				// If receives done from the caller, return here.
 				case <-doneCh:
 					return
diff --git a/internal/objectstorage/types/types.go b/internal/objectstorage/types/types.go
deleted file mode 100644
index 7911bbb..0000000
--- a/internal/objectstorage/types/types.go
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2019 Sorint.lab
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package types
-
-import (
-	"errors"
-	"io"
-	"time"
-)
-
-// TODO(sgotti)
-// define common errors (like notFound) so the implementations will return them
-// instead of their own errors
-
-var ErrNotExist = errors.New("does not exist")
-
-type ReadSeekCloser interface {
-	io.Reader
-	io.Seeker
-	io.Closer
-}
-
-type ObjectInfo struct {
-	Path         string
-	LastModified time.Time
-	Size         int64
-
-	Err error
-}
diff --git a/internal/services/configstore/readdb/readdb.go b/internal/services/configstore/readdb/readdb.go
index ca32a5a..707a702 100644
--- a/internal/services/configstore/readdb/readdb.go
+++ b/internal/services/configstore/readdb/readdb.go
@@ -28,7 +28,6 @@ import (
 	"agola.io/agola/internal/db"
 	"agola.io/agola/internal/etcd"
 	"agola.io/agola/internal/objectstorage"
-	ostypes "agola.io/agola/internal/objectstorage/types"
 	"agola.io/agola/internal/sequence"
 	"agola.io/agola/internal/util"
 	"agola.io/agola/services/configstore/types"
@@ -130,10 +129,10 @@ func (r *ReadDB) ResetDB(ctx context.Context) error {
 
 func (r *ReadDB) SyncFromDump(ctx context.Context) (string, error) {
 	dumpIndex, err := r.dm.GetLastDataStatus()
-	if err != nil && err != ostypes.ErrNotExist {
+	if err != nil && err != objectstorage.ErrNotExist {
 		return "", err
 	}
-	if err == ostypes.ErrNotExist {
+	if err == objectstorage.ErrNotExist {
 		return "", nil
 	}
 	for dataType, files := range dumpIndex.Files {
diff --git a/internal/services/runservice/api/api.go b/internal/services/runservice/api/api.go
index 27bb246..fd2ae22 100644
--- a/internal/services/runservice/api/api.go
+++ b/internal/services/runservice/api/api.go
@@ -26,7 +26,6 @@ import (
 	"agola.io/agola/internal/db"
 	"agola.io/agola/internal/etcd"
 	"agola.io/agola/internal/objectstorage"
-	ostypes "agola.io/agola/internal/objectstorage/types"
 	"agola.io/agola/internal/services/runservice/action"
 	"agola.io/agola/internal/services/runservice/common"
 	"agola.io/agola/internal/services/runservice/readdb"
@@ -231,7 +230,7 @@ func (h *LogsHandler) readTaskLogs(ctx context.Context, runID, taskID string, se
 		}
 		f, err := h.ost.ReadObject(logPath)
 		if err != nil {
-			if err == ostypes.ErrNotExist {
+			if err == objectstorage.ErrNotExist {
 				return common.NewErrNotExist(err), true
 			}
 			return err, true
diff --git a/internal/services/runservice/api/executor.go b/internal/services/runservice/api/executor.go
index c1c7960..2c78963 100644
--- a/internal/services/runservice/api/executor.go
+++ b/internal/services/runservice/api/executor.go
@@ -25,7 +25,6 @@ import (
 
 	"agola.io/agola/internal/etcd"
 	"agola.io/agola/internal/objectstorage"
-	ostypes "agola.io/agola/internal/objectstorage/types"
 	"agola.io/agola/internal/services/runservice/action"
 	"agola.io/agola/internal/services/runservice/common"
 	"agola.io/agola/internal/services/runservice/store"
@@ -249,7 +248,7 @@ func (h *ArchivesHandler) readArchive(rtID string, step int, w io.Writer) error
 	archivePath := store.OSTRunTaskArchivePath(rtID, step)
 	f, err := h.ost.ReadObject(archivePath)
 	if err != nil {
-		if err == ostypes.ErrNotExist {
+		if err == objectstorage.ErrNotExist {
 			return common.NewErrNotExist(err)
 		}
 		return err
@@ -326,7 +325,7 @@ func matchCache(ost *objectstorage.ObjStorage, key string, prefix bool) (string,
 		defer close(doneCh)
 
 		// get the latest modified object
-		var lastObject *ostypes.ObjectInfo
+		var lastObject *objectstorage.ObjectInfo
 		for object := range ost.List(store.OSTCacheDir()+"/"+key, "", false, doneCh) {
 			if object.Err != nil {
 				return "", object.Err
@@ -345,7 +344,7 @@ func matchCache(ost *objectstorage.ObjStorage, key string, prefix bool) (string,
 	}
 
 	_, err := ost.Stat(cachePath)
-	if err == ostypes.ErrNotExist {
+	if err == objectstorage.ErrNotExist {
 		return "", nil
 	}
 	if err != nil {
@@ -358,7 +357,7 @@ func (h *CacheHandler) readCache(key string, w io.Writer) error {
 	cachePath := store.OSTCachePath(key)
 	f, err := h.ost.ReadObject(cachePath)
 	if err != nil {
-		if err == ostypes.ErrNotExist {
+		if err == objectstorage.ErrNotExist {
 			return common.NewErrNotExist(err)
 		}
 		return err
diff --git a/internal/services/runservice/readdb/readdb.go b/internal/services/runservice/readdb/readdb.go
index 029af56..f971d63 100644
--- a/internal/services/runservice/readdb/readdb.go
+++ b/internal/services/runservice/readdb/readdb.go
@@ -32,7 +32,6 @@ import (
 	"agola.io/agola/internal/db"
 	"agola.io/agola/internal/etcd"
 	"agola.io/agola/internal/objectstorage"
-	ostypes "agola.io/agola/internal/objectstorage/types"
 	"agola.io/agola/internal/sequence"
 	"agola.io/agola/internal/services/runservice/common"
 	"agola.io/agola/internal/services/runservice/store"
@@ -668,10 +667,10 @@ func (r *ReadDB) SyncObjectStorage(ctx context.Context) error {
 
 func (r *ReadDB) SyncFromDump(ctx context.Context) (string, error) {
 	dumpIndex, err := r.dm.GetLastDataStatus()
-	if err != nil && err != ostypes.ErrNotExist {
+	if err != nil && err != objectstorage.ErrNotExist {
 		return "", err
 	}
-	if err == ostypes.ErrNotExist {
+	if err == objectstorage.ErrNotExist {
 		return "", nil
 	}
 	for dataType, files := range dumpIndex.Files {
diff --git a/internal/services/runservice/scheduler.go b/internal/services/runservice/scheduler.go
index 46c7e97..cfd5387 100644
--- a/internal/services/runservice/scheduler.go
+++ b/internal/services/runservice/scheduler.go
@@ -26,7 +26,7 @@ import (
 	"agola.io/agola/internal/datamanager"
 	"agola.io/agola/internal/etcd"
 	slog "agola.io/agola/internal/log"
-	ostypes "agola.io/agola/internal/objectstorage/types"
+	"agola.io/agola/internal/objectstorage"
 	"agola.io/agola/internal/runconfig"
 	"agola.io/agola/internal/services/runservice/common"
 	"agola.io/agola/internal/services/runservice/store"
@@ -865,7 +865,7 @@ func (s *Runservice) runTasksUpdater(ctx context.Context) error {
 
 func (s *Runservice) OSTFileExists(path string) (bool, error) {
 	_, err := s.ost.Stat(path)
-	if err != nil && err != ostypes.ErrNotExist {
+	if err != nil && err != objectstorage.ErrNotExist {
 		return false, err
 	}
 	return err == nil, nil
@@ -1359,7 +1359,7 @@ func (s *Runservice) cacheCleaner(ctx context.Context, cacheExpireInterval time.
 		}
 		if object.LastModified.Add(cacheExpireInterval).Before(time.Now()) {
 			if err := s.ost.DeleteObject(object.Path); err != nil {
-				if err != ostypes.ErrNotExist {
+				if err != objectstorage.ErrNotExist {
 					log.Warnf("failed to delete cache object %q: %v", object.Path, err)
 				}
 			}
@@ -1411,7 +1411,7 @@ func (s *Runservice) workspaceCleaner(ctx context.Context, workspaceExpireInterv
 		}
 		if object.LastModified.Add(workspaceExpireInterval).Before(time.Now()) {
 			if err := s.ost.DeleteObject(object.Path); err != nil {
-				if err != ostypes.ErrNotExist {
+				if err != objectstorage.ErrNotExist {
 					log.Warnf("failed to delete workspace object %q: %v", object.Path, err)
 				}
 			}
diff --git a/internal/services/runservice/store/store.go b/internal/services/runservice/store/store.go
index 207c8d6..7a86552 100644
--- a/internal/services/runservice/store/store.go
+++ b/internal/services/runservice/store/store.go
@@ -24,7 +24,7 @@ import (
 
 	"agola.io/agola/internal/datamanager"
 	"agola.io/agola/internal/etcd"
-	ostypes "agola.io/agola/internal/objectstorage/types"
+	"agola.io/agola/internal/objectstorage"
 	"agola.io/agola/internal/services/runservice/common"
 	"agola.io/agola/internal/util"
 	"agola.io/agola/services/runservice/types"
@@ -504,7 +504,7 @@ func GetRunEtcdOrOST(ctx context.Context, e *etcd.Store, dm *datamanager.DataMan
 	}
 	if r == nil {
 		r, err = OSTGetRun(dm, runID)
-		if err != nil && err != ostypes.ErrNotExist {
+		if err != nil && err != objectstorage.ErrNotExist {
 			return nil, err
 		}
 	}