func newISTag(tag string, imageStream *api.ImageStream, image *api.Image) (*api.ImageStreamTag, error) {
istagName := api.JoinImageStreamTag(imageStream.Name, tag)
event := api.LatestTaggedImage(imageStream, tag)
if event == nil || len(event.Image) == 0 {
return nil, kapierrors.NewNotFound("imageStreamTag", istagName)
}
ist := &api.ImageStreamTag{
ObjectMeta: kapi.ObjectMeta{
Namespace: imageStream.Namespace,
Name: istagName,
CreationTimestamp: event.Created,
Annotations: map[string]string{},
ResourceVersion: imageStream.ResourceVersion,
},
}
// if the imageStream has Spec.Tags[tag].Annotations[k] = v, copy it to the image's annotations
// and add them to the istag's annotations
if imageStream.Spec.Tags != nil {
if tagRef, ok := imageStream.Spec.Tags[tag]; ok {
if image != nil && image.Annotations == nil {
image.Annotations = make(map[string]string)
}
for k, v := range tagRef.Annotations {
ist.Annotations[k] = v
if image != nil {
image.Annotations[k] = v
}
}
}
}
if image != nil {
imageWithMetadata, err := api.ImageWithMetadata(*image)
if err != nil {
return nil, err
}
ist.Image = *imageWithMetadata
} else {
ist.Image = api.Image{}
ist.Image.Name = event.Image
}
// Replace the DockerImageReference with the value from event, which contains
// real value from status. This should fix the problem for v1 registries,
// where mutliple tags point to a single id and only the first image's metadata
// is saved. This in turn will always return the pull spec from the first
// imported image, which might be different than the requested tag.
ist.Image.DockerImageReference = event.DockerImageReference
return ist, nil
}
// newISTag initializes an image stream tag from an image stream and image. The allowEmptyEvent will create a tag even
// in the event that the status tag does does not exist yet (no image has successfully been tagged) or the image is nil.
func newISTag(tag string, imageStream *api.ImageStream, image *api.Image, allowEmptyEvent bool) (*api.ImageStreamTag, error) {
istagName := api.JoinImageStreamTag(imageStream.Name, tag)
event := api.LatestTaggedImage(imageStream, tag)
if event == nil || len(event.Image) == 0 {
if !allowEmptyEvent {
return nil, kapierrors.NewNotFound(api.Resource("imagestreamtags"), istagName)
}
event = &api.TagEvent{
Created: imageStream.CreationTimestamp,
}
}
ist := &api.ImageStreamTag{
ObjectMeta: kapi.ObjectMeta{
Namespace: imageStream.Namespace,
Name: istagName,
CreationTimestamp: event.Created,
Annotations: map[string]string{},
ResourceVersion: imageStream.ResourceVersion,
},
Generation: event.Generation,
Conditions: imageStream.Status.Tags[tag].Conditions,
}
if imageStream.Spec.Tags != nil {
if tagRef, ok := imageStream.Spec.Tags[tag]; ok {
// copy the spec tag
ist.Tag = &tagRef
if from := ist.Tag.From; from != nil {
copied := *from
ist.Tag.From = &copied
}
if gen := ist.Tag.Generation; gen != nil {
copied := *gen
ist.Tag.Generation = &copied
}
// if the imageStream has Spec.Tags[tag].Annotations[k] = v, copy it to the image's annotations
// and add them to the istag's annotations
if image != nil && image.Annotations == nil {
image.Annotations = make(map[string]string)
}
for k, v := range tagRef.Annotations {
ist.Annotations[k] = v
if image != nil {
image.Annotations[k] = v
}
}
}
}
if image != nil {
if err := api.ImageWithMetadata(image); err != nil {
return nil, err
}
image.DockerImageManifest = ""
ist.Image = *image
} else {
ist.Image = api.Image{}
ist.Image.Name = event.Image
}
// Replace the DockerImageReference with the value from event, which contains
// real value from status. This should fix the problem for v1 registries,
// where mutliple tags point to a single id and only the first image's metadata
// is saved. This in turn will always return the pull spec from the first
// imported image, which might be different than the requested tag.
ist.Image.DockerImageReference = event.DockerImageReference
return ist, nil
}