Merge pull request #592 from tonistiigi/run-entrypoint

dockerfile: never use entrypoint for run commands

frontend/dockerfile/dockerfile2llb/convert.go

@@ -572,8 +572,6 @@ func dispatchRun(d *dispatchState, c *instructions.RunCommand, proxy *llb.ProxyE
 	var args []string = c.CmdLine
 	if c.PrependShell {
 		args = withShell(d.image, args)
-	} else if d.image.Config.Entrypoint != nil {
-		args = append(d.image.Config.Entrypoint, args...)
 	}
 	opt := []llb.RunOption{llb.Args(args)}
 	for _, arg := range d.buildArgs {

frontend/dockerfile/dockerfile_test.go

@@ -75,9 +75,39 @@ func TestIntegration(t *testing.T) {
 		testPlatformArgsExplicit,
 		testExportMultiPlatform,
 		testQuotedMetaArgs,
+		testIgnoreEntrypoint,
 	})
 }
 
+func testIgnoreEntrypoint(t *testing.T, sb integration.Sandbox) {
+	t.Parallel()
+
+	dockerfile := []byte(`
+FROM busybox
+ENTRYPOINT ["/nosuchcmd"]
+RUN ["ls"]
+`)
+
+	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 = c.Solve(context.TODO(), nil, client.SolveOpt{
+		Frontend: "dockerfile.v0",
+		LocalDirs: map[string]string{
+			builder.LocalNameDockerfile: dir,
+			builder.LocalNameContext:    dir,
+		},
+	}, nil)
+	require.NoError(t, err)
+}
+
 func testQuotedMetaArgs(t *testing.T, sb integration.Sandbox) {
 	t.Parallel()