// lookupImageOnEndpoint checks the specified endpoint to see if an image exists
// and if it is absent then it sends the image id to the channel to be pushed.
func lookupImageOnEndpoint(wg *sync.WaitGroup, r *registry.Session, out io.Writer, sf *utils.StreamFormatter,
images chan imagePushData, imagesToPush chan string) {
defer wg.Done()
for image := range images {
if err := r.LookupRemoteImage(image.id, image.endpoint, image.tokens); err != nil {
log.Errorf("Error in LookupRemoteImage: %s", err)
imagesToPush <- image.id
continue
}
out.Write(sf.FormatStatus("", "Image %s already pushed, skipping", common.TruncateID(image.id)))
}
}
func (s *TagStore) pushRepository(r *registry.Session, out io.Writer, localName, remoteName string, localRepo map[string]string, tag string, sf *utils.StreamFormatter) error {
out = utils.NewWriteFlusher(out)
log.Debugf("Local repo: %s", localRepo)
imgList, tagsByImage, err := s.getImageList(localRepo, tag)
if err != nil {
return err
}
out.Write(sf.FormatStatus("", "Sending image list"))
var (
repoData *registry.RepositoryData
imageIndex []*registry.ImgData
)
for _, imgId := range imgList {
if tags, exists := tagsByImage[imgId]; exists {
// If an image has tags you must add an entry in the image index
// for each tag
for _, tag := range tags {
imageIndex = append(imageIndex, ®istry.ImgData{
ID: imgId,
Tag: tag,
})
}
} else {
// If the image does not have a tag it still needs to be sent to the
// registry with an empty tag so that it is accociated with the repository
imageIndex = append(imageIndex, ®istry.ImgData{
ID: imgId,
Tag: "",
})
}
}
log.Debugf("Preparing to push %s with the following images and tags", localRepo)
for _, data := range imageIndex {
log.Debugf("Pushing ID: %s with Tag: %s", data.ID, data.Tag)
}
// Register all the images in a repository with the registry
// If an image is not in this list it will not be associated with the repository
repoData, err = r.PushImageJSONIndex(remoteName, imageIndex, false, nil)
if err != nil {
return err
}
nTag := 1
if tag == "" {
nTag = len(localRepo)
}
for _, ep := range repoData.Endpoints {
out.Write(sf.FormatStatus("", "Pushing repository %s (%d tags)", localName, nTag))
for _, imgId := range imgList {
if r.LookupRemoteImage(imgId, ep, repoData.Tokens) {
out.Write(sf.FormatStatus("", "Image %s already pushed, skipping", utils.TruncateID(imgId)))
} else {
if _, err := s.pushImage(r, out, remoteName, imgId, ep, repoData.Tokens, sf); err != nil {
// FIXME: Continue on error?
return err
}
}
for _, tag := range tagsByImage[imgId] {
out.Write(sf.FormatStatus("", "Pushing tag for rev [%s] on {%s}", utils.TruncateID(imgId), ep+"repositories/"+remoteName+"/tags/"+tag))
if err := r.PushRegistryTag(remoteName, imgId, tag, ep, repoData.Tokens); err != nil {
return err
}
}
}
}
if _, err := r.PushImageJSONIndex(remoteName, imageIndex, true, repoData.Endpoints); err != nil {
return err
}
return nil
}