dockerfile: add test for chown destination

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

frontend/dockerfile/dockerfile2llb/convert.go

@@ -35,7 +35,7 @@ const (
 	localNameContext = "context"
 	historyComment   = "buildkit.dockerfile.v0"
 
-	DefaultCopyImage = "tonistiigi/copy:v0.1.4@sha256:d9d49bedbbe2b27df88115e6aff7b9cd11ed2fbd8d9013f02d3da735c08c92e5"
+	DefaultCopyImage = "tonistiigi/copy:v0.1.5@sha256:eab89b76ffbb3c807663a67a41e8be31b8a0e362d7fb074a55bddace563a28bb"
 )
 
 type ConvertOpt struct {

frontend/dockerfile/dockerfile_test.go

@@ -51,7 +51,7 @@ func init() {
 	opts = []integration.TestOpt{
 		integration.WithMirroredImages(integration.OfficialImages("busybox:latest")),
 		integration.WithMirroredImages(map[string]string{
-			"tonistiigi/copy:v0.1.4": "docker.io/" + dockerfile2llb.DefaultCopyImage,
+			"tonistiigi/copy:v0.1.5": "docker.io/" + dockerfile2llb.DefaultCopyImage,
 		}),
 		integration.WithMatrix("frontend", frontends),
 	}
@@ -114,9 +114,40 @@ func TestIntegration(t *testing.T) {
 		testIgnoreEntrypoint,
 		testCopyThroughSymlinkContext,
 		testCopyThroughSymlinkMultiStage,
+		testCopyChownCreateDest,
 	}, opts...)
 }
 
+func testCopyChownCreateDest(t *testing.T, sb integration.Sandbox) {
+	t.Parallel()
+	f := getFrontend(t, sb)
+
+	dockerfile := []byte(`
+FROM busybox
+RUN adduser -D user
+COPY --chown=user:user . /dest
+RUN [ "$(stat -c "%U %G" /dest)" == "user user" ]
+`)
+
+	dir, err := tmpdir(
+		fstest.CreateFile("Dockerfile", dockerfile, 0600),
+	)
+	require.NoError(t, err)
+	defer os.RemoveAll(dir)
+
+	c, err := client.New(context.TODO(), sb.Address())
+	require.NoError(t, err)
+	defer c.Close()
+
+	_, err = f.Solve(context.TODO(), c, client.SolveOpt{
+		LocalDirs: map[string]string{
+			builder.LocalNameDockerfile: dir,
+			builder.LocalNameContext:    dir,
+		},
+	}, nil)
+	require.NoError(t, err)
+}
+
 func testCopyThroughSymlinkContext(t *testing.T, sb integration.Sandbox) {
 	t.Parallel()
 	f := getFrontend(t, sb)