Can restore disk image when adding disks to virtual machine

virtweb_backend/src/app_config.rs

@@ -255,6 +255,11 @@ impl AppConfig {
         self.storage_path().join("disk_images")
     }
 
+    /// Get the path of a disk image file
+    pub fn disk_images_file_path(&self, name: &str) -> PathBuf {
+        self.disk_images_storage_path().join(name)
+    }
+
     /// Get VM vnc sockets directory
     pub fn vnc_sockets_path(&self) -> PathBuf {
         self.storage_path().join("vnc")