// RegistryListTags returns the list of images instances obtained from all tags existing in the registry
func RegistryListTags(image *imagename.ImageName, auth *docker.AuthConfigurations) (images []*imagename.ImageName, err error) {
var (
name = image.Name
registry = image.Registry
)
regAuth, err := GetAuthForRegistry(auth, image)
if err != nil {
return nil, fmt.Errorf("Failed to get auth token for registry: %s, make sure you are properly logged in using `docker login` or have AWS credentials set in case of using ECR", image)
}
// XXX: AWS ECR Registry API v2 does not support listing tags
// wo we just return a single image tag if it exists and no wildcards used
if image.IsECR() {
log.Debugf("ECR detected %s", registry)
if !image.IsStrict() {
return nil, fmt.Errorf("Amazon ECR does not support tags listing, therefore image wildcards are not supported, sorry: %s", image)
}
if exists, err := ecrImageExists(image, regAuth); err != nil {
return nil, err
} else if exists {
log.Debugf("ECR image %s found in the registry", image)
images = append(images, image)
}
return
}
if registry == "" {
registry = "registry-1.docker.io"
if !strings.Contains(name, "/") {
name = "library/" + name
}
}
var (
tg = tags{}
url = fmt.Sprintf("https://%s/v2/%s/tags/list?page_size=9999&page=1", registry, name)
)
log.Debugf("Listing image tags from the remote registry %s", url)
if err := registryGet(url, regAuth, &tg); err != nil {
return nil, err
}
log.Debugf("Got %d tags from the remote registry for image %s", len(tg.Tags), image)
for _, t := range tg.Tags {
candidate := imagename.New(image.NameWithRegistry(), t)
if image.Contains(candidate) || image.Tag == candidate.Tag {
images = append(images, candidate)
}
}
return
}
// ListTags returns the list of parsed tags existing for given image name on S3
func (s *StorageS3) ListTags(imageName string) (images []*imagename.ImageName, err error) {
image := imagename.NewFromString(imageName)
params := &s3.ListObjectsInput{
Bucket: aws.String(image.Registry),
MaxKeys: aws.Int64(1000),
Prefix: aws.String(image.Name),
}
resp, err := s.s3.ListObjects(params)
if err != nil {
return nil, err
}
for _, s3Obj := range resp.Contents {
split := strings.Split(*s3Obj.Key, "/")
if len(split) < 2 {
continue
}
imgName := strings.Join(split[:len(split)-1], "/")
imgName = fmt.Sprintf("s3.amazonaws.com/%s/%s", image.Registry, imgName)
tag := strings.TrimSuffix(split[len(split)-1], ".tar")
candidate := imagename.New(imgName, tag)
if candidate.Name != image.Name {
continue
}
if image.Contains(candidate) || image.Tag == candidate.Tag {
images = append(images, candidate)
}
}
return
}
