fix(sessions): periodically cleanup expired sessions (#1939)

Signed-off-by: Petu Eusebiu <peusebiu@cisco.com>

pkg/storage/imagestore/imagestore.go

@@ -52,6 +52,10 @@ type ImageStore struct {
 	commit      bool
 }
 
+func (is *ImageStore) Name() string {
+	return is.storeDriver.Name()
+}
+
 func (is *ImageStore) RootDir() string {
 	return is.rootDir
 }

pkg/storage/types/types.go

@@ -19,6 +19,7 @@ type StoreController interface {
 }
 
 type ImageStore interface { //nolint:interfacebloat
+	Name() string
 	DirExists(d string) bool
 	RootDir() string
 	RLock(*time.Time)