Allow npipe volume type on stack file

Signed-off-by: Olli Janatuinen <olli.janatuinen@gmail.com>

cli/compose/convert/volume.go

@@ -122,6 +122,26 @@ func handleTmpfsToMount(volume composetypes.ServiceVolumeConfig) (mount.Mount, e
 	return result, nil
 }
 
+func handleNpipeToMount(volume composetypes.ServiceVolumeConfig) (mount.Mount, error) {
+	result := createMountFromVolume(volume)
+
+	if volume.Source == "" {
+		return mount.Mount{}, errors.New("invalid npipe source, source cannot be empty")
+	}
+	if volume.Volume != nil {
+		return mount.Mount{}, errors.New("volume options are incompatible with type npipe")
+	}
+	if volume.Tmpfs != nil {
+		return mount.Mount{}, errors.New("tmpfs options are incompatible with type npipe")
+	}
+	if volume.Bind != nil {
+		result.BindOptions = &mount.BindOptions{
+			Propagation: mount.Propagation(volume.Bind.Propagation),
+		}
+	}
+	return result, nil
+}
+
 func convertVolumeToMount(
 	volume composetypes.ServiceVolumeConfig,
 	stackVolumes volumes,
@@ -135,6 +155,8 @@ func convertVolumeToMount(
 		return handleBindToMount(volume)
 	case "tmpfs":
 		return handleTmpfsToMount(volume)
+	case "npipe":
+		return handleNpipeToMount(volume)
 	}
 	return mount.Mount{}, errors.New("volume type must be volume, bind, or tmpfs")
 }

cli/compose/convert/volume_test.go

@@ -343,3 +343,19 @@ func TestConvertTmpfsToMountVolumeWithSource(t *testing.T) {
 	_, err := convertVolumeToMount(config, volumes{}, NewNamespace("foo"))
 	assert.Error(t, err, "invalid tmpfs source, source must be empty")
 }
+
+func TestConvertVolumeToMountAnonymousNpipe(t *testing.T) {
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "npipe",
+		Source: `\\.\pipe\foo`,
+		Target: `\\.\pipe\foo`,
+	}
+	expected := mount.Mount{
+		Type:   mount.TypeNamedPipe,
+		Source: `\\.\pipe\foo`,
+		Target: `\\.\pipe\foo`,
+	}
+	mount, err := convertVolumeToMount(config, volumes{}, NewNamespace("foo"))
+	assert.NilError(t, err)
+	assert.Check(t, is.DeepEqual(expected, mount))
+}