option to control progress in pkg build

Signed-off-by: Avi Deitcher <avi@deitcher.net>

src/cmd/linuxkit/pkg_build.go

@@ -48,6 +48,7 @@ func addCmdRunPkgBuildPush(cmd *cobra.Command, withPush bool) *cobra.Command {
 		sbomScanner    string
 		dockerfile     string
 		buildArgFiles  []string
+		progress       string
 	)
 
 	cmd.RunE = func(cmd *cobra.Command, args []string) error {
@@ -160,6 +161,7 @@ func addCmdRunPkgBuildPush(cmd *cobra.Command, withPush bool) *cobra.Command {
 		opts = append(opts, pkglib.WithBuildBuilders(buildersMap))
 		opts = append(opts, pkglib.WithBuildBuilderImage(builderImage))
 		opts = append(opts, pkglib.WithBuildBuilderRestart(builderRestart))
+		opts = append(opts, pkglib.WithProgress(progress))
 
 		for _, p := range pkgs {
 			// things we need our own copies of
@@ -226,6 +228,7 @@ func addCmdRunPkgBuildPush(cmd *cobra.Command, withPush bool) *cobra.Command {
 	cmd.Flags().StringVar(&sbomScanner, "sbom-scanner", "", "SBOM scanner to use, must match the buildkit spec; set to blank to use the buildkit default; set to 'false' for no scanning")
 	cmd.Flags().StringVar(&dockerfile, "dockerfile", "", "Dockerfile to use for building the image, must be in this directory or below, overrides what is in build.yml")
 	cmd.Flags().StringArrayVar(&buildArgFiles, "build-arg-file", nil, "Files containing build arguments, one key=value per line, contents augment and override buildArgs in build.yml. Can be specified multiple times. File is relative to working directory when running `linuxkit pkg build`")
+	cmd.Flags().StringVar(&progress, "progress", "auto", "Set type of progress output (auto, plain, tty). Use plain to show container output, tty for interactive build")
 
 	return cmd
 }

src/cmd/linuxkit/pkglib/build.go

@@ -45,6 +45,7 @@ type buildOpts struct {
 	sbomScannerImage string
 	dockerfile       string
 	buildArgs        []string
+	progress         string
 }
 
 // BuildOpt allows callers to specify options to Build
@@ -206,6 +207,14 @@ func WithBuildArgs(args []string) BuildOpt {
 	}
 }
 
+// WithProgress which progress type to show
+func WithProgress(progress string) BuildOpt {
+	return func(bo *buildOpts) error {
+		bo.progress = progress
+		return nil
+	}
+}
+
 // Build builds the package
 func (p Pkg) Build(bos ...BuildOpt) error {
 	var bo buildOpts
@@ -640,7 +649,7 @@ func (p Pkg) buildArch(ctx context.Context, d dockerRunner, c lktspec.CacheProvi
 		passCache = nil
 	}
 
-	if err := d.build(ctx, tagArch, p.path, bo.dockerfile, builderName, builderImage, platform, restart, passCache, buildCtx.Reader(), stdout, bo.sbomScan, bo.sbomScannerImage, imageBuildOpts); err != nil {
+	if err := d.build(ctx, tagArch, p.path, bo.dockerfile, builderName, builderImage, platform, restart, passCache, buildCtx.Reader(), stdout, bo.sbomScan, bo.sbomScannerImage, bo.progress, imageBuildOpts); err != nil {
 		stdoutCloser()
 		if strings.Contains(err.Error(), "executor failed running [/dev/.buildkit_qemu_emulator") {
 			return nil, fmt.Errorf("buildkit was unable to emulate %s. check binfmt has been set up and works for this platform: %v", platform, err)

src/cmd/linuxkit/pkglib/build_test.go

@@ -58,7 +58,7 @@ func (d *dockerMocker) contextSupportCheck() error {
 func (d *dockerMocker) builder(_ context.Context, _, _, _ string, _ bool) (*buildkitClient.Client, error) {
 	return nil, fmt.Errorf("not implemented")
 }
-func (d *dockerMocker) build(ctx context.Context, tag, pkg, dockerfile, dockerContext, builderImage, platform string, builderRestart bool, c lktspec.CacheProvider, r io.Reader, stdout io.Writer, sbomScan bool, sbomScannerImage string, imageBuildOpts dockertypes.ImageBuildOptions) error {
+func (d *dockerMocker) build(ctx context.Context, tag, pkg, dockerfile, dockerContext, builderImage, platform string, builderRestart bool, c lktspec.CacheProvider, r io.Reader, stdout io.Writer, sbomScan bool, sbomScannerImage, progress string, imageBuildOpts dockertypes.ImageBuildOptions) error {
 	if !d.enableBuild {
 		return errors.New("build disabled")
 	}

src/cmd/linuxkit/pkglib/docker.go

@@ -53,7 +53,7 @@ const (
 
 type dockerRunner interface {
 	tag(ref, tag string) error
-	build(ctx context.Context, tag, pkg, dockerfile, dockerContext, builderImage, platform string, restart bool, c spec.CacheProvider, r io.Reader, stdout io.Writer, sbomScan bool, sbomScannerImage string, imageBuildOpts types.ImageBuildOptions) error
+	build(ctx context.Context, tag, pkg, dockerfile, dockerContext, builderImage, platform string, restart bool, c spec.CacheProvider, r io.Reader, stdout io.Writer, sbomScan bool, sbomScannerImage, platformType string, imageBuildOpts types.ImageBuildOptions) error
 	save(tgt string, refs ...string) error
 	load(src io.Reader) error
 	pull(img string) (bool, error)
@@ -402,7 +402,7 @@ func (dr *dockerRunnerImpl) tag(ref, tag string) error {
 	return dr.command(nil, nil, nil, "image", "tag", ref, tag)
 }
 
-func (dr *dockerRunnerImpl) build(ctx context.Context, tag, pkg, dockerfile, dockerContext, builderImage, platform string, restart bool, c spec.CacheProvider, stdin io.Reader, stdout io.Writer, sbomScan bool, sbomScannerImage string, imageBuildOpts types.ImageBuildOptions) error {
+func (dr *dockerRunnerImpl) build(ctx context.Context, tag, pkg, dockerfile, dockerContext, builderImage, platform string, restart bool, c spec.CacheProvider, stdin io.Reader, stdout io.Writer, sbomScan bool, sbomScannerImage, progressType string, imageBuildOpts types.ImageBuildOptions) error {
 	// ensure we have a builder
 	client, err := dr.builder(ctx, dockerContext, builderImage, platform, restart)
 	if err != nil {
@@ -561,7 +561,10 @@ func (dr *dockerRunnerImpl) build(ctx context.Context, tag, pkg, dockerfile, doc
 
 	ctx2, cancel := context.WithCancel(context.TODO())
 	defer cancel()
-	printer := progress.NewPrinter(ctx2, os.Stderr, os.Stderr, "auto")
+	if progressType == "" {
+		progressType = "auto"
+	}
+	printer := progress.NewPrinter(ctx2, os.Stderr, os.Stderr, progressType)
 	pw := progress.WithPrefix(printer, "", false)
 	ch, done := progress.NewChannel(pw)
 	defer func() { <-done }()