Golang DockerImageReference.Tag方法代碼示例

func autoConvert_v1_DockerImageReference_To_api_DockerImageReference(in *DockerImageReference, out *api.DockerImageReference, s conversion.Scope) error {
	out.Registry = in.Registry
	out.Namespace = in.Namespace
	out.Name = in.Name
	out.Tag = in.Tag
	out.ID = in.ID
	return nil
}

// importTag import single tag from given ImageStream. Returns retrieved image (for later reuse),
// a flag saying if we should retry imports and an error if one occurs.
func (c *ImportController) importTag(stream *api.ImageStream, tag string, ref api.DockerImageReference, dockerImage *dockerregistry.Image, client dockerregistry.Client, insecure bool) (*dockerregistry.Image, bool, error) {
	glog.V(5).Infof("Importing tag %s from %s/%s...", tag, stream.Namespace, stream.Name)
	if dockerImage == nil {
		// TODO insecure applies to the stream's spec.dockerImageRepository, not necessarily to an external one!
		conn, err := client.Connect(ref.Registry, insecure)
		if err != nil {
			// retry-able error no. 3
			return nil, true, err
		}
		if len(ref.ID) > 0 {
			dockerImage, err = conn.ImageByID(ref.Namespace, ref.Name, ref.ID)
		} else {
			dockerImage, err = conn.ImageByTag(ref.Namespace, ref.Name, ref.Tag)
		}
		switch {
		case dockerregistry.IsRepositoryNotFound(err), dockerregistry.IsRegistryNotFound(err), dockerregistry.IsImageNotFound(err), dockerregistry.IsTagNotFound(err):
			return nil, false, err
		case err != nil:
			// retry-able error no. 4
			return nil, true, err
		}
	}
	var image api.DockerImage
	if err := kapi.Scheme.Convert(&dockerImage.Image, &image); err != nil {
		return nil, false, fmt.Errorf("could not convert image: %#v", err)
	}

	// prefer to pull by ID always
	if dockerImage.PullByID {
		// if the registry indicates the image is pullable by ID, clear the tag
		ref.Tag = ""
		ref.ID = dockerImage.ID
	}

	mapping := &api.ImageStreamMapping{
		ObjectMeta: kapi.ObjectMeta{
			Name:      stream.Name,
			Namespace: stream.Namespace,
		},
		Tag: tag,
		Image: api.Image{
			ObjectMeta: kapi.ObjectMeta{
				Name: dockerImage.ID,
			},
			DockerImageReference: ref.String(),
			DockerImageMetadata:  image,
		},
	}
	if err := c.mappings.ImageStreamMappings(stream.Namespace).Create(mapping); err != nil {
		// retry-able no. 5
		return nil, true, err
	}
	return dockerImage, false, nil
}

func autoConvert_v1_DockerImageReference_To_api_DockerImageReference(in *DockerImageReference, out *image_api.DockerImageReference, s conversion.Scope) error {
	if defaulting, found := s.DefaultingInterface(reflect.TypeOf(*in)); found {
		defaulting.(func(*DockerImageReference))(in)
	}
	out.Registry = in.Registry
	out.Namespace = in.Namespace
	out.Name = in.Name
	out.Tag = in.Tag
	out.ID = in.ID
	return nil
}

// Next processes the given image stream, looking for streams that have DockerImageRepository
// set but have not yet been marked as "ready". If transient errors occur, err is returned but
// the image stream is not modified (so it will be tried again later). If a permanent
// failure occurs the image is marked with an annotation. The tags of the original spec image
// are left as is (those are updated through status).
func (c *ImportController) Next(stream *api.ImageStream) error {
	if !needsImport(stream) {
		return nil
	}
	name := stream.Spec.DockerImageRepository

	ref, err := api.ParseDockerImageReference(name)
	if err != nil {
		err = fmt.Errorf("invalid docker image repository, cannot import data: %v", err)
		util.HandleError(err)
		return c.done(stream, err.Error(), retryCount)
	}

	insecure := stream.Annotations != nil && stream.Annotations[api.InsecureRepositoryAnnotation] == "true"

	client := c.client
	if client == nil {
		client = dockerregistry.NewClient()
	}
	conn, err := client.Connect(ref.Registry, insecure, false)
	if err != nil {
		return err
	}
	tags, err := conn.ImageTags(ref.Namespace, ref.Name)
	switch {
	case dockerregistry.IsRepositoryNotFound(err), dockerregistry.IsRegistryNotFound(err):
		return c.done(stream, err.Error(), retryCount)
	case err != nil:
		return err
	}

	imageToTag := make(map[string][]string)
	for tag, image := range tags {
		if specTag, ok := stream.Spec.Tags[tag]; ok && specTag.From != nil {
			// spec tag is set to track another tag - do not import
			continue
		}

		imageToTag[image] = append(imageToTag[image], tag)
	}

	// no tags to import
	if len(imageToTag) == 0 {
		return c.done(stream, "", retryCount)
	}

	for id, tags := range imageToTag {
		dockerImage, err := conn.ImageByID(ref.Namespace, ref.Name, id)
		switch {
		case dockerregistry.IsRepositoryNotFound(err), dockerregistry.IsRegistryNotFound(err):
			return c.done(stream, err.Error(), retryCount)
		case dockerregistry.IsImageNotFound(err):
			continue
		case err != nil:
			return err
		}
		var image api.DockerImage
		if err := kapi.Scheme.Convert(&dockerImage.Image, &image); err != nil {
			err = fmt.Errorf("could not convert image: %#v", err)
			util.HandleError(err)
			return c.done(stream, err.Error(), retryCount)
		}

		idTagPresent := false
		if len(tags) > 1 && hasTag(tags, id) {
			// only set to true if we have at least 1 tag that isn't the image id
			idTagPresent = true
		}
		for _, tag := range tags {
			if idTagPresent && id == tag {
				continue
			}

			pullRef := api.DockerImageReference{
				Registry:  ref.Registry,
				Namespace: ref.Namespace,
				Name:      ref.Name,
				Tag:       tag,
			}
			// prefer to pull by ID always
			if dockerImage.PullByID {
				// if the registry indicates the image is pullable by ID, clear the tag
				pullRef.Tag = ""
				pullRef.ID = dockerImage.ID
			} else if idTagPresent {
				// if there is a tag for the image by its id (tag=tag), we can pull by id
				pullRef.Tag = id
			}

			mapping := &api.ImageStreamMapping{
				ObjectMeta: kapi.ObjectMeta{
					Name:      stream.Name,
					Namespace: stream.Namespace,
				},
				Tag: tag,
//.........這裏部分代碼省略.........

// Search searches all images in local docker server for images that match terms
func (r DockerClientSearcher) Search(precise bool, terms ...string) (ComponentMatches, []error) {
	componentMatches := ComponentMatches{}
	errs := []error{}
	for _, term := range terms {
		var (
			ref imageapi.DockerImageReference
			err error
		)
		switch term {
		case "__dockerimage_fail":
			errs = append(errs, fmt.Errorf("unable to find the specified docker image: %s", term))
			continue
		case "scratch":
			componentMatches = append(componentMatches, &ComponentMatch{
				Value: term,
				Score: 0.0,
				// we don't want to create an imagestream for "scratch", so treat
				// it as a local only image.
				LocalOnly: true,
				Virtual:   true,
			})
			return componentMatches, errs
		case "*":
			ref = imageapi.DockerImageReference{Name: term}
		default:
			ref, err = imageapi.ParseDockerImageReference(term)
			if err != nil {
				continue
			}
		}

		termMatches := ScoredComponentMatches{}

		// first look for the image in the remote docker registry
		if r.RegistrySearcher != nil {
			glog.V(4).Infof("checking remote registry for %q", ref.String())
			matches, err := r.RegistrySearcher.Search(precise, term)
			errs = append(errs, err...)

			for i := range matches {
				matches[i].LocalOnly = false
				glog.V(5).Infof("Found remote match %v", matches[i].Value)
			}
			termMatches = append(termMatches, matches...)
		}

		if r.Client == nil || reflect.ValueOf(r.Client).IsNil() {
			componentMatches = append(componentMatches, termMatches...)
			continue
		}

		// if we didn't find it exactly in a remote registry,
		// try to find it as a local-only image.
		if len(termMatches.Exact()) == 0 {
			glog.V(4).Infof("checking local Docker daemon for %q", ref.String())
			images, err := r.Client.ListImages(docker.ListImagesOptions{})
			if err != nil {
				errs = append(errs, err)
				continue
			}

			if len(ref.Tag) == 0 {
				ref.Tag = imageapi.DefaultImageTag
				term = fmt.Sprintf("%s:%s", term, imageapi.DefaultImageTag)
			}
			for _, image := range images {
				if tags := matchTag(image, term, ref.Registry, ref.Namespace, ref.Name, ref.Tag); len(tags) > 0 {
					for i := range tags {
						tags[i].LocalOnly = true
						glog.V(5).Infof("Found local docker image match %q with score %f", tags[i].Value, tags[i].Score)
					}
					termMatches = append(termMatches, tags...)
				}
			}
		}
		sort.Sort(termMatches)

		for i, match := range termMatches {
			if match.Image != nil {
				continue
			}

			image, err := r.Client.InspectImage(match.Value)
			if err != nil {
				if err != docker.ErrNoSuchImage {
					errs = append(errs, err)
				}
				continue
			}
			dockerImage := &imageapi.DockerImage{}
			if err := kapi.Scheme.Convert(image, dockerImage, nil); err != nil {
				errs = append(errs, err)
				continue
			}
			updated := &ComponentMatch{
				Value:       match.Value,
				Argument:    fmt.Sprintf("--docker-image=%q", match.Value),
				Name:        match.Value,
				Description: descriptionFor(dockerImage, match.Value, ref.Registry, ""),
//.........這裏部分代碼省略.........