// Get retrieves an image by ID that has previously been tagged into an image stream.
// `id` is of the form <repo name>@<image id>.
func (r *REST) Get(ctx kapi.Context, id string) (runtime.Object, error) {
name, imageID, err := ParseNameAndID(id)
if err != nil {
return nil, err
}
repo, err := r.imageStreamRegistry.GetImageStream(ctx, name)
if err != nil {
return nil, err
}
if repo.Status.Tags == nil {
return nil, errors.NewNotFound("imageStreamImage", imageID)
}
set := api.ResolveImageID(repo, imageID)
switch len(set) {
case 1:
imageName := set.List()[0]
image, err := r.imageRegistry.GetImage(ctx, imageName)
if err != nil {
return nil, err
}
imageWithMetadata, err := api.ImageWithMetadata(*image)
if err != nil {
return nil, err
}
if d, err := digest.ParseDigest(imageName); err == nil {
imageName = d.Hex()
}
if len(imageName) > 7 {
imageName = imageName[:7]
}
isi := api.ImageStreamImage{
ObjectMeta: kapi.ObjectMeta{
Namespace: kapi.NamespaceValue(ctx),
Name: fmt.Sprintf("%s@%s", name, imageName),
},
Image: *imageWithMetadata,
}
return &isi, nil
case 0:
return nil, errors.NewNotFound("imageStreamImage", imageID)
default:
return nil, errors.NewConflict("imageStreamImage", imageID, fmt.Errorf("multiple images match the prefix %q: %s", imageID, strings.Join(set.List(), ", ")))
}
}
// Get retrieves an image that has been tagged by stream and tag. `id` is of the format
// <stream name>:<tag>.
func (r *REST) Get(ctx kapi.Context, id string) (runtime.Object, error) {
name, tag, err := nameAndTag(id)
if err != nil {
return nil, err
}
stream, err := r.imageStreamRegistry.GetImageStream(ctx, name)
if err != nil {
return nil, err
}
event := api.LatestTaggedImage(stream, tag)
if event == nil || len(event.Image) == 0 {
return nil, errors.NewNotFound("imageStreamTag", id)
}
image, err := r.imageRegistry.GetImage(ctx, event.Image)
if err != nil {
return nil, err
}
// if the stream has Spec.Tags[tag].Annotations[k] = v, copy it to the image's annotations
if stream.Spec.Tags != nil {
if tagRef, ok := stream.Spec.Tags[tag]; ok {
if image.Annotations == nil {
image.Annotations = make(map[string]string)
}
for k, v := range tagRef.Annotations {
image.Annotations[k] = v
}
}
}
imageWithMetadata, err := api.ImageWithMetadata(*image)
if err != nil {
return nil, err
}
ist := api.ImageStreamTag{
ObjectMeta: kapi.ObjectMeta{
Namespace: kapi.NamespaceValue(ctx),
Name: id,
},
Image: *imageWithMetadata,
}
return &ist, nil
}
