refactor: Introduce config struct for operations

pkg/config/config.go

@@ -22,6 +22,17 @@ type DriveConfig struct {
 	DriveIsRegular bool
 }
 
+type BackendConfig struct {
+	GetWriter   func() (DriveWriterConfig, error)
+	CloseWriter func() error
+
+	GetReader   func() (DriveReaderConfig, error)
+	CloseReader func() error
+
+	GetDrive   func() (DriveConfig, error)
+	CloseDrive func() error
+}
+
 type MetadataConfig struct {
 	Metadata *persisters.MetadataPersister
 }
@@ -30,6 +41,7 @@ type PipeConfig struct {
 	Compression string
 	Encryption  string
 	Signature   string
+	RecordSize  int
 }
 
 type CryptoConfig struct {