// Create registers a new image (if it doesn't exist) and updates the specified ImageStream's tags.
func (s *REST) Create(ctx kapi.Context, obj runtime.Object) (runtime.Object, error) {
if err := rest.BeforeCreate(Strategy, ctx, obj); err != nil {
return nil, err
}
mapping := obj.(*api.ImageStreamMapping)
stream, err := s.findStreamForMapping(ctx, mapping)
if err != nil {
return nil, err
}
image := mapping.Image
tag := mapping.Tag
if len(tag) == 0 {
tag = api.DefaultImageTag
}
if err := s.imageRegistry.CreateImage(ctx, &image); err != nil && !errors.IsAlreadyExists(err) {
return nil, err
}
next := api.TagEvent{
Created: util.Now(),
DockerImageReference: image.DockerImageReference,
Image: image.Name,
}
if !api.AddTagEventToImageStream(stream, tag, next) {
// nothing actually changed
return &kapi.Status{Status: kapi.StatusSuccess}, nil
}
api.UpdateTrackingTags(stream, tag, next)
if _, err := s.imageStreamRegistry.UpdateImageStreamStatus(ctx, stream); err != nil {
return nil, err
}
return &kapi.Status{Status: kapi.StatusSuccess}, nil
}
// tagsChanged updates stream.Status.Tags based on the old and new image stream.
// if the old stream is nil, all tags are considered additions.
func (s Strategy) tagsChanged(old, stream *api.ImageStream) fielderrors.ValidationErrorList {
var errs fielderrors.ValidationErrorList
oldTags := map[string]api.TagReference{}
if old != nil && old.Spec.Tags != nil {
oldTags = old.Spec.Tags
}
for tag, tagRef := range stream.Spec.Tags {
if oldRef, ok := oldTags[tag]; ok && !tagRefChanged(oldRef, tagRef, stream.Namespace) {
continue
}
if tagRef.From == nil {
continue
}
if tagRef.From.Kind == "DockerImage" && len(tagRef.From.Name) > 0 {
event, err := tagReferenceToTagEvent(stream, tagRef, "")
if err != nil {
errs = append(errs, fielderrors.NewFieldInvalid(fmt.Sprintf("spec.tags[%s].from", tag), tagRef.From, err.Error()))
continue
}
api.AddTagEventToImageStream(stream, tag, *event)
continue
}
tagRefStreamName, tagOrID, err := parseFromReference(stream, tagRef.From)
if err != nil {
errs = append(errs, fielderrors.NewFieldInvalid(fmt.Sprintf("spec.tags[%s].from.name", tag), tagRef.From.Name, "must be of the form <tag>, <repo>:<tag>, <id>, or <repo>@<id>"))
continue
}
streamRef := stream
streamRefNamespace := tagRef.From.Namespace
if len(streamRefNamespace) == 0 {
streamRefNamespace = stream.Namespace
}
if streamRefNamespace != stream.Namespace || tagRefStreamName != stream.Name {
obj, err := s.ImageStreamGetter.Get(kapi.WithNamespace(kapi.NewContext(), streamRefNamespace), tagRefStreamName)
if err != nil {
errs = append(errs, fielderrors.NewFieldInvalid(fmt.Sprintf("spec.tags[%s].from.name", tag), tagRef.From.Name, fmt.Sprintf("error retrieving ImageStream %s/%s: %v", streamRefNamespace, tagRefStreamName, err)))
continue
}
streamRef = obj.(*api.ImageStream)
}
event, err := tagReferenceToTagEvent(streamRef, tagRef, tagOrID)
if err != nil {
errs = append(errs, fielderrors.NewFieldInvalid(fmt.Sprintf("spec.tags[%s].from.name", tag), tagRef.From.Name, fmt.Sprintf("error generating tag event: %v", err)))
continue
}
if event == nil {
util.HandleError(fmt.Errorf("unable to find tag event for %#v", tagRef.From))
continue
}
api.AddTagEventToImageStream(stream, tag, *event)
}
// use a consistent timestamp on creation
if old == nil && !stream.CreationTimestamp.IsZero() {
for tag, list := range stream.Status.Tags {
for _, event := range list.Items {
event.Created = stream.CreationTimestamp
}
stream.Status.Tags[tag] = list
}
}
return errs
}