Golang DockerImageReference.DockerClientDefaults方法代碼示例

// Get retrieves the manifest with digest `dgst`.
func (r *repository) Get(ctx context.Context, dgst digest.Digest, options ...distribution.ManifestServiceOption) (distribution.Manifest, error) {
	if err := r.checkPendingErrors(ctx); err != nil {
		return nil, err
	}

	if _, err := r.getImageStreamImage(dgst); err != nil {
		context.GetLogger(r.ctx).Errorf("error retrieving ImageStreamImage %s/%[email protected]%s: %v", r.namespace, r.name, dgst.String(), err)
		return nil, err
	}

	image, err := r.getImage(dgst)
	if err != nil {
		context.GetLogger(r.ctx).Errorf("error retrieving image %s: %v", dgst.String(), err)
		return nil, err
	}

	ref := imageapi.DockerImageReference{Namespace: r.namespace, Name: r.name, Registry: r.registryAddr}
	if managed := image.Annotations[imageapi.ManagedByOpenShiftAnnotation]; managed == "true" {
		// Repository without a registry part is refers to repository containing locally managed images.
		// Such an entry is retrieved, checked and set by blobDescriptorService operating only on local blobs.
		ref.Registry = ""
	} else {
		// Repository with a registry points to remote repository. This is used by pullthrough middleware.
		ref = ref.DockerClientDefaults().AsRepository()
	}

	manifest, err := r.manifestFromImageWithCachedLayers(image, ref.Exact())

	return manifest, err
}

// Get retrieves the manifest with digest `dgst`.
func (r *repository) Get(dgst digest.Digest) (*schema1.SignedManifest, error) {
	if _, err := r.getImageStreamImage(dgst); err != nil {
		context.GetLogger(r.ctx).Errorf("Error retrieving ImageStreamImage %s/%[email protected]%s: %v", r.namespace, r.name, dgst.String(), err)
		return nil, err
	}

	image, err := r.getImage(dgst)
	if err != nil {
		context.GetLogger(r.ctx).Errorf("Error retrieving image %s: %v", dgst.String(), err)
		return nil, err
	}

	ref := imageapi.DockerImageReference{Namespace: r.namespace, Name: r.name, Registry: r.registryAddr}
	return r.manifestFromImageWithCachedLayers(image, ref.DockerClientDefaults().Exact())
}

// pullthroughGetByTag attempts to load the given image manifest from the remote server defined by ref, using cacheName to store any cached layers.
func (r *repository) pullthroughGetByTag(image *imageapi.Image, ref imageapi.DockerImageReference, cacheName string, options ...distribution.ManifestServiceOption) (*schema1.SignedManifest, error) {
	defaultRef := ref.DockerClientDefaults()

	retriever := r.importContext()

	repo, err := retriever.Repository(r.ctx, defaultRef.RegistryURL(), defaultRef.RepositoryName(), false)
	if err != nil {
		context.GetLogger(r.ctx).Errorf("Error getting remote repository for image %q: %v", image.DockerImageReference, err)
		return nil, err
	}

	// get a manifest context
	manifests, err := repo.Manifests(r.ctx)
	if err != nil {
		context.GetLogger(r.ctx).Errorf("Error getting manifests for image %q: %v", image.DockerImageReference, err)
		return nil, err
	}

	// fetch this by image
	if len(ref.ID) > 0 {
		dgst, err := digest.ParseDigest(ref.ID)
		if err != nil {
			context.GetLogger(r.ctx).Errorf("Error getting manifests for image %q: %v", image.DockerImageReference, err)
			return nil, err
		}
		manifest, err := manifests.Get(dgst)
		if err != nil {
			context.GetLogger(r.ctx).Errorf("Error getting manifest from remote server for image %q: %v", image.DockerImageReference, err)
			return nil, err
		}
		r.rememberLayers(manifest, cacheName)
		return manifest, nil
	}

	// fetch this by tag
	manifest, err := manifests.GetByTag(ref.Tag, options...)
	if err != nil {
		context.GetLogger(r.ctx).Errorf("Error getting manifest from remote server for image %q: %v", image.DockerImageReference, err)
		return nil, err
	}

	r.rememberLayers(manifest, cacheName)
	return manifest, nil
}

// Get retrieves the manifest with digest `dgst`.
func (r *repository) Get(ctx context.Context, dgst digest.Digest, options ...distribution.ManifestServiceOption) (distribution.Manifest, error) {
	if err := r.checkPendingErrors(ctx); err != nil {
		return nil, err
	}

	if _, err := r.getImageStreamImage(dgst); err != nil {
		context.GetLogger(r.ctx).Errorf("error retrieving ImageStreamImage %s/%[email protected]%s: %v", r.namespace, r.name, dgst.String(), err)
		return nil, err
	}

	image, err := r.getImage(dgst)
	if err != nil {
		context.GetLogger(r.ctx).Errorf("error retrieving image %s: %v", dgst.String(), err)
		return nil, err
	}

	ref := imageapi.DockerImageReference{Namespace: r.namespace, Name: r.name, Registry: r.registryAddr}
	manifest, err := r.manifestFromImageWithCachedLayers(image, ref.DockerClientDefaults().Exact())

	return manifest, err
}

// importImages updates the passed ImageStreamImport object and sets Status for each image based on whether the import
// succeeded or failed. Cache is updated with any loaded images. Limiter is optional and controls how fast images are updated.
func (i *ImageStreamImporter) importImages(ctx gocontext.Context, retriever RepositoryRetriever, isi *api.ImageStreamImport, limiter flowcontrol.RateLimiter) {
	tags := make(map[manifestKey][]int)
	ids := make(map[manifestKey][]int)
	repositories := make(map[repositoryKey]*importRepository)
	cache := i.digestToRepositoryCache[ctx]

	isi.Status.Images = make([]api.ImageImportStatus, len(isi.Spec.Images))
	for i := range isi.Spec.Images {
		spec := &isi.Spec.Images[i]
		from := spec.From
		if from.Kind != "DockerImage" {
			continue
		}
		// TODO: This should be removed in 1.6
		// See for more info: https://github.com/openshift/origin/pull/11774#issuecomment-258905994
		var (
			err error
			ref api.DockerImageReference
		)
		if from.Name != "*" {
			ref, err = api.ParseDockerImageReference(from.Name)
			if err != nil {
				isi.Status.Images[i].Status = invalidStatus("", field.Invalid(field.NewPath("from", "name"), from.Name, fmt.Sprintf("invalid name: %v", err)))
				continue
			}
		} else {
			ref = api.DockerImageReference{Name: from.Name}
		}
		defaultRef := ref.DockerClientDefaults()
		repoName := defaultRef.RepositoryName()
		registryURL := defaultRef.RegistryURL()

		key := repositoryKey{url: *registryURL, name: repoName}
		repo, ok := repositories[key]
		if !ok {
			repo = &importRepository{
				Ref:      ref,
				Registry: &key.url,
				Name:     key.name,
				Insecure: spec.ImportPolicy.Insecure,
			}
			repositories[key] = repo
		}

		if len(defaultRef.ID) > 0 {
			id := manifestKey{repositoryKey: key}
			id.value = defaultRef.ID
			ids[id] = append(ids[id], i)
			if len(ids[id]) == 1 {
				repo.Digests = append(repo.Digests, importDigest{
					Name:  defaultRef.ID,
					Image: cache[id],
				})
			}
		} else {
			tag := manifestKey{repositoryKey: key}
			tag.value = defaultRef.Tag
			tags[tag] = append(tags[tag], i)
			if len(tags[tag]) == 1 {
				repo.Tags = append(repo.Tags, importTag{
					Name:  defaultRef.Tag,
					Image: cache[tag],
				})
			}
		}
	}

	// for each repository we found, import all tags and digests
	for key, repo := range repositories {
		i.importRepositoryFromDocker(ctx, retriever, repo, limiter)
		for _, tag := range repo.Tags {
			j := manifestKey{repositoryKey: key}
			j.value = tag.Name
			if tag.Image != nil {
				cache[j] = tag.Image
			}
			for _, index := range tags[j] {
				if tag.Err != nil {
					setImageImportStatus(isi, index, tag.Name, tag.Err)
					continue
				}
				copied := *tag.Image
				image := &isi.Status.Images[index]
				ref := repo.Ref
				ref.Tag, ref.ID = tag.Name, copied.Name
				copied.DockerImageReference = ref.MostSpecific().Exact()
				image.Tag = tag.Name
				image.Image = &copied
				image.Status.Status = unversioned.StatusSuccess
			}
		}
		for _, digest := range repo.Digests {
			j := manifestKey{repositoryKey: key}
			j.value = digest.Name
			if digest.Image != nil {
				cache[j] = digest.Image
			}
			for _, index := range ids[j] {
//.........這裏部分代碼省略.........

// importFromRepository imports the repository named on the ImageStreamImport, if any, importing up to maximumTags, and reporting
// status on each image that is attempted to be imported. If the repository cannot be found or tags cannot be retrieved, the repository
// status field is set.
func (i *ImageStreamImporter) importFromRepository(ctx gocontext.Context, retriever RepositoryRetriever, isi *api.ImageStreamImport, maximumTags int, limiter flowcontrol.RateLimiter) {
	if isi.Spec.Repository == nil {
		return
	}
	cache := i.digestToRepositoryCache[ctx]
	isi.Status.Repository = &api.RepositoryImportStatus{}
	status := isi.Status.Repository

	spec := isi.Spec.Repository
	from := spec.From
	if from.Kind != "DockerImage" {
		return
	}
	// TODO: This should be removed in 1.6
	// See for more info: https://github.com/openshift/origin/pull/11774#issuecomment-258905994
	var (
		err error
		ref api.DockerImageReference
	)
	if from.Name != "*" {
		ref, err = api.ParseDockerImageReference(from.Name)
		if err != nil {
			status.Status = invalidStatus("", field.Invalid(field.NewPath("from", "name"), from.Name, fmt.Sprintf("invalid name: %v", err)))
			return
		}
	} else {
		ref = api.DockerImageReference{Name: from.Name}
	}

	defaultRef := ref.DockerClientDefaults()
	repoName := defaultRef.RepositoryName()
	registryURL := defaultRef.RegistryURL()

	key := repositoryKey{url: *registryURL, name: repoName}
	repo := &importRepository{
		Ref:         ref,
		Registry:    &key.url,
		Name:        key.name,
		Insecure:    spec.ImportPolicy.Insecure,
		MaximumTags: maximumTags,
	}
	i.importRepositoryFromDocker(ctx, retriever, repo, limiter)

	if repo.Err != nil {
		status.Status = imageImportStatus(repo.Err, "", "repository")
		return
	}

	additional := []string{}
	tagKey := manifestKey{repositoryKey: key}
	for _, s := range repo.AdditionalTags {
		tagKey.value = s
		if image, ok := cache[tagKey]; ok {
			repo.Tags = append(repo.Tags, importTag{
				Name:  s,
				Image: image,
			})
		} else {
			additional = append(additional, s)
		}
	}
	status.AdditionalTags = additional

	failures := 0
	status.Status.Status = unversioned.StatusSuccess
	status.Images = make([]api.ImageImportStatus, len(repo.Tags))
	for i, tag := range repo.Tags {
		status.Images[i].Tag = tag.Name
		if tag.Err != nil {
			failures++
			status.Images[i].Status = imageImportStatus(tag.Err, "", "repository")
			continue
		}
		status.Images[i].Status.Status = unversioned.StatusSuccess

		copied := *tag.Image
		ref.Tag, ref.ID = tag.Name, copied.Name
		copied.DockerImageReference = ref.MostSpecific().Exact()
		status.Images[i].Image = &copied
	}
	if failures > 0 {
		status.Status.Status = unversioned.StatusFailure
		status.Status.Reason = unversioned.StatusReason("ImportFailed")
		switch failures {
		case 1:
			status.Status.Message = "one of the images from this repository failed to import"
		default:
			status.Status.Message = fmt.Sprintf("%d of the images from this repository failed to import", failures)
		}
	}
}