// Pull downloads the plugin from Store
func Pull(name string, rs registry.Service, metaheader http.Header, authConfig *types.AuthConfig) (PullData, error) {
ref, err := reference.ParseNamed(name)
if err != nil {
logrus.Debugf("pull.go: error in ParseNamed: %v", err)
return nil, err
}
repoInfo, err := rs.ResolveRepository(ref)
if err != nil {
logrus.Debugf("pull.go: error in ResolveRepository: %v", err)
return nil, err
}
if err := dockerdist.ValidateRepoName(repoInfo.Name()); err != nil {
logrus.Debugf("pull.go: error in ValidateRepoName: %v", err)
return nil, err
}
endpoints, err := rs.LookupPullEndpoints(repoInfo.Hostname())
if err != nil {
logrus.Debugf("pull.go: error in LookupPullEndpoints: %v", err)
return nil, err
}
var confirmedV2 bool
var repository distribution.Repository
for _, endpoint := range endpoints {
if confirmedV2 && endpoint.Version == registry.APIVersion1 {
logrus.Debugf("Skipping v1 endpoint %s because v2 registry was detected", endpoint.URL)
continue
}
// TODO: reuse contexts
repository, confirmedV2, err = dockerdist.NewV2Repository(context.Background(), repoInfo, endpoint, metaheader, authConfig, "pull")
if err != nil {
logrus.Debugf("pull.go: error in NewV2Repository: %v", err)
return nil, err
}
if !confirmedV2 {
logrus.Debugf("pull.go: !confirmedV2")
return nil, ErrUnSupportedRegistry
}
logrus.Debugf("Trying to pull %s from %s %s", repoInfo.Name(), endpoint.URL, endpoint.Version)
break
}
tag := DefaultTag
if ref, ok := ref.(reference.NamedTagged); ok {
tag = ref.Tag()
}
// tags := repository.Tags(context.Background())
// desc, err := tags.Get(context.Background(), tag)
// if err != nil {
// return nil, err
// }
//
msv, err := repository.Manifests(context.Background())
if err != nil {
logrus.Debugf("pull.go: error in repository.Manifests: %v", err)
return nil, err
}
manifest, err := msv.Get(context.Background(), "", distribution.WithTag(tag))
if err != nil {
// TODO: change 401 to 404
logrus.Debugf("pull.go: error in msv.Get(): %v", err)
return nil, err
}
_, pl, err := manifest.Payload()
if err != nil {
logrus.Debugf("pull.go: error in manifest.Payload(): %v", err)
return nil, err
}
var m schema2.Manifest
if err := json.Unmarshal(pl, &m); err != nil {
logrus.Debugf("pull.go: error in json.Unmarshal(): %v", err)
return nil, err
}
pd := &pullData{
repository: repository,
manifest: m,
}
logrus.Debugf("manifest: %s", pl)
return pd, nil
}
