Golang NamedTagged.String方法代码示例

func (cli *DockerCli) tagTrusted(trustedRef reference.Canonical, ref reference.NamedTagged) error {
	fmt.Fprintf(cli.out, "Tagging %s as %s\n", trustedRef.String(), ref.String())

	options := types.ImageTagOptions{
		Force: true,
	}

	return cli.client.ImageTag(context.Background(), trustedRef.String(), ref.String(), options)
}

func (cli *DockerCli) tagTrusted(trustedRef reference.Canonical, ref reference.NamedTagged) error {
	fmt.Fprintf(cli.out, "Tagging %s as %s\n", trustedRef.String(), ref.String())

	options := types.ImageTagOptions{
		ImageID:        trustedRef.String(),
		RepositoryName: trustedRef.Name(),
		Tag:            ref.Tag(),
		Force:          true,
	}

	return cli.client.ImageTag(options)
}

func (l *tarexporter) parseNames(names []string) (map[image.ID]*imageDescriptor, error) {
	imgDescr := make(map[image.ID]*imageDescriptor)

	addAssoc := func(id image.ID, ref reference.Named) {
		if _, ok := imgDescr[id]; !ok {
			imgDescr[id] = &imageDescriptor{}
		}

		if ref != nil {
			var tagged reference.NamedTagged
			if _, ok := ref.(reference.Canonical); ok {
				return
			}
			var ok bool
			if tagged, ok = ref.(reference.NamedTagged); !ok {
				var err error
				if tagged, err = reference.WithTag(ref, reference.DefaultTag); err != nil {
					return
				}
			}

			for _, t := range imgDescr[id].refs {
				if tagged.String() == t.String() {
					return
				}
			}
			imgDescr[id].refs = append(imgDescr[id].refs, tagged)
		}
	}

	for _, name := range names {
		id, ref, err := reference.ParseIDOrReference(name)
		if err != nil {
			return nil, err
		}
		if id != "" {
			_, err := l.is.Get(image.ID(id))
			if err != nil {
				return nil, err
			}
			addAssoc(image.ID(id), nil)
			continue
		}
		if ref.Name() == string(digest.Canonical) {
			imgID, err := l.is.Search(name)
			if err != nil {
				return nil, err
			}
			addAssoc(imgID, nil)
			continue
		}
		if reference.IsNameOnly(ref) {
			assocs := l.rs.ReferencesByName(ref)
			for _, assoc := range assocs {
				addAssoc(assoc.ImageID, assoc.Ref)
			}
			if len(assocs) == 0 {
				imgID, err := l.is.Search(name)
				if err != nil {
					return nil, err
				}
				addAssoc(imgID, nil)
			}
			continue
		}
		var imgID image.ID
		if imgID, err = l.rs.Get(ref); err != nil {
			return nil, err
		}
		addAssoc(imgID, ref)

	}
	return imgDescr, nil
}

func (p *v2Pusher) pushV2Tag(ctx context.Context, ref reference.NamedTagged, imageID image.ID) error {
	logrus.Debugf("Pushing repository: %s", ref.String())

	img, err := p.config.ImageStore.Get(imageID)
	if err != nil {
		return fmt.Errorf("could not find image from tag %s: %v", ref.String(), err)
	}

	var l layer.Layer

	topLayerID := img.RootFS.ChainID()
	if topLayerID == "" {
		l = layer.EmptyLayer
	} else {
		l, err = p.config.LayerStore.Get(topLayerID)
		if err != nil {
			return fmt.Errorf("failed to get top layer from image: %v", err)
		}
		defer layer.ReleaseAndLog(p.config.LayerStore, l)
	}

	var descriptors []xfer.UploadDescriptor

	descriptorTemplate := v2PushDescriptor{
		v2MetadataService: p.v2MetadataService,
		repoInfo:          p.repoInfo,
		repo:              p.repo,
		pushState:         &p.pushState,
	}

	// Loop bounds condition is to avoid pushing the base layer on Windows.
	for i := 0; i < len(img.RootFS.DiffIDs); i++ {
		descriptor := descriptorTemplate
		descriptor.layer = l
		descriptors = append(descriptors, &descriptor)

		l = l.Parent()
	}

	if err := p.config.UploadManager.Upload(ctx, descriptors, p.config.ProgressOutput); err != nil {
		return err
	}

	// Try schema2 first
	builder := schema2.NewManifestBuilder(p.repo.Blobs(ctx), img.RawJSON())
	manifest, err := manifestFromBuilder(ctx, builder, descriptors)
	if err != nil {
		return err
	}

	manSvc, err := p.repo.Manifests(ctx)
	if err != nil {
		return err
	}

	putOptions := []distribution.ManifestServiceOption{client.WithTag(ref.Tag())}
	if _, err = manSvc.Put(ctx, manifest, putOptions...); err != nil {
		logrus.Warnf("failed to upload schema2 manifest: %v - falling back to schema1", err)

		manifestRef, err := distreference.WithTag(p.repo.Named(), ref.Tag())
		if err != nil {
			return err
		}
		builder = schema1.NewConfigManifestBuilder(p.repo.Blobs(ctx), p.config.TrustKey, manifestRef, img.RawJSON())
		manifest, err = manifestFromBuilder(ctx, builder, descriptors)
		if err != nil {
			return err
		}

		if _, err = manSvc.Put(ctx, manifest, putOptions...); err != nil {
			return err
		}
	}

	var canonicalManifest []byte

	switch v := manifest.(type) {
	case *schema1.SignedManifest:
		canonicalManifest = v.Canonical
	case *schema2.DeserializedManifest:
		_, canonicalManifest, err = v.Payload()
		if err != nil {
			return err
		}
	}

	manifestDigest := digest.FromBytes(canonicalManifest)
	progress.Messagef(p.config.ProgressOutput, "", "%s: digest: %s size: %d", ref.Tag(), manifestDigest, len(canonicalManifest))
	// Signal digest to the trust client so it can sign the
	// push, if appropriate.
	progress.Aux(p.config.ProgressOutput, PushResult{Tag: ref.Tag(), Digest: manifestDigest, Size: len(canonicalManifest)})

	return nil
}

func (l *tarexporter) setLoadedTag(ref reference.NamedTagged, imgID image.ID, outStream io.Writer) error {
	if prevID, err := l.rs.Get(ref); err == nil && prevID != imgID {
		fmt.Fprintf(outStream, "The image %s already exists, renaming the old one with ID %s to empty string\n", ref.String(), string(prevID)) // todo: this message is wrong in case of multiple tags
	}

	if err := l.rs.AddTag(ref, imgID, true); err != nil {
		return err
	}
	return nil
}

func (p *v2Pusher) pushV2Tag(ctx context.Context, ref reference.NamedTagged, id digest.Digest) error {
	logrus.Debugf("Pushing repository: %s", ref.String())

	imgConfig, err := p.config.ImageStore.Get(id)
	if err != nil {
		return fmt.Errorf("could not find image from tag %s: %v", ref.String(), err)
	}

	rootfs, err := p.config.ImageStore.RootFSFromConfig(imgConfig)
	if err != nil {
		return fmt.Errorf("unable to get rootfs for image %s: %s", ref.String(), err)
	}

	l, err := p.config.LayerStore.Get(rootfs.ChainID())
	if err != nil {
		return fmt.Errorf("failed to get top layer from image: %v", err)
	}
	defer l.Release()

	hmacKey, err := metadata.ComputeV2MetadataHMACKey(p.config.AuthConfig)
	if err != nil {
		return fmt.Errorf("failed to compute hmac key of auth config: %v", err)
	}

	var descriptors []xfer.UploadDescriptor

	descriptorTemplate := v2PushDescriptor{
		v2MetadataService: p.v2MetadataService,
		hmacKey:           hmacKey,
		repoInfo:          p.repoInfo,
		ref:               p.ref,
		repo:              p.repo,
		pushState:         &p.pushState,
	}

	// Loop bounds condition is to avoid pushing the base layer on Windows.
	for i := 0; i < len(rootfs.DiffIDs); i++ {
		descriptor := descriptorTemplate
		descriptor.layer = l
		descriptor.checkedDigests = make(map[digest.Digest]struct{})
		descriptors = append(descriptors, &descriptor)

		l = l.Parent()
	}

	if err := p.config.UploadManager.Upload(ctx, descriptors, p.config.ProgressOutput); err != nil {
		return err
	}

	// Try schema2 first
	builder := schema2.NewManifestBuilder(p.repo.Blobs(ctx), p.config.ConfigMediaType, imgConfig)
	manifest, err := manifestFromBuilder(ctx, builder, descriptors)
	if err != nil {
		return err
	}

	manSvc, err := p.repo.Manifests(ctx)
	if err != nil {
		return err
	}

	putOptions := []distribution.ManifestServiceOption{distribution.WithTag(ref.Tag())}
	if _, err = manSvc.Put(ctx, manifest, putOptions...); err != nil {
		if runtime.GOOS == "windows" || p.config.TrustKey == nil || p.config.RequireSchema2 {
			logrus.Warnf("failed to upload schema2 manifest: %v", err)
			return err
		}

		logrus.Warnf("failed to upload schema2 manifest: %v - falling back to schema1", err)

		manifestRef, err := distreference.WithTag(p.repo.Named(), ref.Tag())
		if err != nil {
			return err
		}
		builder = schema1.NewConfigManifestBuilder(p.repo.Blobs(ctx), p.config.TrustKey, manifestRef, imgConfig)
		manifest, err = manifestFromBuilder(ctx, builder, descriptors)
		if err != nil {
			return err
		}

		if _, err = manSvc.Put(ctx, manifest, putOptions...); err != nil {
			return err
		}
	}

	var canonicalManifest []byte

	switch v := manifest.(type) {
	case *schema1.SignedManifest:
		canonicalManifest = v.Canonical
	case *schema2.DeserializedManifest:
		_, canonicalManifest, err = v.Payload()
		if err != nil {
			return err
		}
	}

	manifestDigest := digest.FromBytes(canonicalManifest)
	progress.Messagef(p.config.ProgressOutput, "", "%s: digest: %s size: %d", ref.Tag(), manifestDigest, len(canonicalManifest))

//.........这里部分代码省略.........

// TagTrusted tags a trusted ref
func (cli *DockerCli) TagTrusted(ctx context.Context, trustedRef reference.Canonical, ref reference.NamedTagged) error {
	fmt.Fprintf(cli.out, "Tagging %s as %s\n", trustedRef.String(), ref.String())

	return cli.client.ImageTag(ctx, trustedRef.String(), ref.String())
}

func trustedResolveDigest(ctx context.Context, cli *command.DockerCli, ref reference.NamedTagged) (distreference.Canonical, error) {
	repoInfo, err := registry.ParseRepositoryInfo(ref)
	if err != nil {
		return nil, err
	}

	authConfig := command.ResolveAuthConfig(ctx, cli, repoInfo.Index)

	notaryRepo, err := trust.GetNotaryRepository(cli, repoInfo, authConfig, "pull")
	if err != nil {
		return nil, errors.Wrap(err, "error establishing connection to trust repository")
	}

	t, err := notaryRepo.GetTargetByName(ref.Tag(), trust.ReleasesRole, data.CanonicalTargetsRole)
	if err != nil {
		return nil, trust.NotaryError(repoInfo.FullName(), err)
	}
	// Only get the tag if it's in the top level targets role or the releases delegation role
	// ignore it if it's in any other delegation roles
	if t.Role != trust.ReleasesRole && t.Role != data.CanonicalTargetsRole {
		return nil, trust.NotaryError(repoInfo.FullName(), fmt.Errorf("No trust data for %s", ref.String()))
	}

	logrus.Debugf("retrieving target for %s role\n", t.Role)
	h, ok := t.Hashes["sha256"]
	if !ok {
		return nil, errors.New("no valid hash, expecting sha256")
	}

	dgst := digest.NewDigestFromHex("sha256", hex.EncodeToString(h))

	// Using distribution reference package to make sure that adding a
	// digest does not erase the tag. When the two reference packages
	// are unified, this will no longer be an issue.
	return distreference.WithDigest(ref, dgst)
}

// TagTrusted tags a trusted ref
func TagTrusted(ctx context.Context, cli *command.DockerCli, trustedRef reference.Canonical, ref reference.NamedTagged) error {
	fmt.Fprintf(cli.Out(), "Tagging %s as %s\n", trustedRef.String(), ref.String())

	return cli.Client().ImageTag(ctx, trustedRef.String(), ref.String())
}