Fix overlay volumes on Windows

The Windows source folder path was not converted in the corresponding
machine folder path when the volume was of type overlay as it does for
other bind mount volumes.

Fix #25988

Signed-off-by: Mario Loriedo <[email protected]>

Author: l0rd

pkg/machine/e2e/basic_test.go

@@ -90,6 +90,13 @@ var _ = Describe("run basic podman commands", func() {
 		Expect(err).ToNot(HaveOccurred())
 		Expect(runAlp).To(Exit(0))
 
+		// Test overlay works on all platforms except Hyper-V (see #26210)
+		if !isVmtype(define.HyperVVirt) {
+			runAlp, err = mb.setCmd(bm.withPodmanCommand([]string{"run", "-v", tDir + ":/test:O", TESTIMAGE, "ls", "/test/attr-test-file"})).run()
+			Expect(err).ToNot(HaveOccurred())
+			Expect(runAlp).To(Exit(0))
+		}
+
 		// Test build with --volume option
 		cf := filepath.Join(tDir, "Containerfile")
 		err = os.WriteFile(cf, []byte("FROM "+TESTIMAGE+"\nRUN ls /test/attr-test-file\n"), 0o644)

pkg/specgenutil/volumes.go

@@ -157,6 +157,11 @@ func parseVolumes(rtc *config.Config, volumeFlag, mountFlag, tmpfsFlag []string)
 	}
 	finalOverlayVolume := make([]*specgen.OverlayVolume, 0, len(overlayVolumes))
 	for _, volume := range overlayVolumes {
+		absSrc, err := specgen.ConvertWinMountPath(volume.Source)
+		if err != nil {
+			return nil, fmt.Errorf("getting absolute path of %s: %w", volume.Source, err)
+		}
+		volume.Source = absSrc
 		finalOverlayVolume = append(finalOverlayVolume, volume)
 	}
 	finalImageVolumes := make([]*specgen.ImageVolume, 0, len(unifiedContainerMounts.imageVolumes))