Can compress QCow2

virtweb_backend/src/utils/file_disks_utils.rs

@@ -168,6 +168,16 @@ impl DiskFileInfo {
                 cmd
             }
 
+            // Compress QCow2
+            (DiskFileFormat::QCow2 { .. }, DiskFileFormat::CompressedQCow2) => {
+                let mut cmd = Command::new(constants::GZIP_PROGRAM);
+                cmd.arg("--keep")
+                    .arg("--to-stdout")
+                    .arg(&self.file_path)
+                    .stdout(File::create(&temp_file)?);
+                cmd
+            }
+
             // Dumb copy of file
             (a, b) if a == b => {
                 let mut cmd = Command::new(constants::COPY_PROGRAM);