// PushV2Image pushes the image content to the v2 registry, first buffering the contents to disk
func (s *TagStore) pushV2Image(r *registry.Session, img *image.Image, endpoint *registry.Endpoint, imageName, sumType, sumStr string, sf *utils.StreamFormatter, out io.Writer, auth *registry.RequestAuthorization) error {
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Buffering to Disk", nil))
image, err := s.graph.Get(img.ID)
if err != nil {
return err
}
arch, err := image.TarLayer()
if err != nil {
return err
}
tf, err := s.graph.newTempFile()
if err != nil {
return err
}
defer func() {
tf.Close()
os.Remove(tf.Name())
}()
size, err := bufferToFile(tf, arch)
if err != nil {
return err
}
// Send the layer
log.Debugf("rendered layer for %s of [%d] size", img.ID, size)
if err := r.PutV2ImageBlob(endpoint, imageName, sumType, sumStr, utils.ProgressReader(tf, int(size), out, sf, false, utils.TruncateID(img.ID), "Pushing"), auth); err != nil {
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Image push failed", nil))
return err
}
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Image successfully pushed", nil))
return nil
}
// PushV2Image pushes the image content to the v2 registry, first buffering the contents to disk
func (s *TagStore) pushV2Image(r *registry.Session, img *image.Image, endpoint *registry.Endpoint, imageName string, sf *utils.StreamFormatter, out io.Writer, auth *registry.RequestAuthorization) (string, error) {
out.Write(sf.FormatProgress(common.TruncateID(img.ID), "Buffering to Disk", nil))
image, err := s.graph.Get(img.ID)
if err != nil {
return "", err
}
arch, err := image.TarLayer()
if err != nil {
return "", err
}
defer arch.Close()
tf, err := s.graph.newTempFile()
if err != nil {
return "", err
}
defer func() {
tf.Close()
os.Remove(tf.Name())
}()
h := sha256.New()
size, err := bufferToFile(tf, io.TeeReader(arch, h))
if err != nil {
return "", err
}
dgst := digest.NewDigest("sha256", h)
// Send the layer
log.Debugf("rendered layer for %s of [%d] size", img.ID, size)
if err := r.PutV2ImageBlob(endpoint, imageName, dgst.Algorithm(), dgst.Hex(),
progressreader.New(progressreader.Config{
In: tf,
Out: out,
Formatter: sf,
Size: int(size),
NewLines: false,
ID: common.TruncateID(img.ID),
Action: "Pushing",
}), auth); err != nil {
out.Write(sf.FormatProgress(common.TruncateID(img.ID), "Image push failed", nil))
return "", err
}
out.Write(sf.FormatProgress(common.TruncateID(img.ID), "Image successfully pushed", nil))
return dgst.String(), nil
}
func (s *TagStore) pushV2Repository(r *registry.Session, eng *engine.Engine, out io.Writer, repoInfo *registry.RepositoryInfo, manifestBytes, tag string, sf *utils.StreamFormatter) error {
if repoInfo.Official {
j := eng.Job("trust_update_base")
if err := j.Run(); err != nil {
log.Errorf("error updating trust base graph: %s", err)
}
}
endpoint, err := r.V2RegistryEndpoint(repoInfo.Index)
if err != nil {
return fmt.Errorf("error getting registry endpoint: %s", err)
}
auth, err := r.GetV2Authorization(endpoint, repoInfo.RemoteName, false)
if err != nil {
return fmt.Errorf("error getting authorization: %s", err)
}
// if no manifest is given, generate and sign with the key associated with the local tag store
if len(manifestBytes) == 0 {
mBytes, err := s.newManifest(repoInfo.LocalName, repoInfo.RemoteName, tag)
if err != nil {
return err
}
js, err := libtrust.NewJSONSignature(mBytes)
if err != nil {
return err
}
if err = js.Sign(s.trustKey); err != nil {
return err
}
signedBody, err := js.PrettySignature("signatures")
if err != nil {
return err
}
log.Infof("Signed manifest using daemon's key: %s", s.trustKey.KeyID())
manifestBytes = string(signedBody)
}
manifest, verified, err := s.verifyManifest(eng, []byte(manifestBytes))
if err != nil {
return fmt.Errorf("error verifying manifest: %s", err)
}
if err := checkValidManifest(manifest); err != nil {
return fmt.Errorf("invalid manifest: %s", err)
}
if !verified {
log.Debugf("Pushing unverified image")
}
for i := len(manifest.FSLayers) - 1; i >= 0; i-- {
var (
sumStr = manifest.FSLayers[i].BlobSum
imgJSON = []byte(manifest.History[i].V1Compatibility)
)
sumParts := strings.SplitN(sumStr, ":", 2)
if len(sumParts) < 2 {
return fmt.Errorf("Invalid checksum: %s", sumStr)
}
manifestSum := sumParts[1]
img, err := image.NewImgJSON(imgJSON)
if err != nil {
return fmt.Errorf("Failed to parse json: %s", err)
}
img, err = s.graph.Get(img.ID)
if err != nil {
return err
}
arch, err := img.TarLayer()
if err != nil {
return fmt.Errorf("Could not get tar layer: %s", err)
}
// Call mount blob
exists, err := r.HeadV2ImageBlob(endpoint, repoInfo.RemoteName, sumParts[0], manifestSum, auth)
if err != nil {
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Image push failed", nil))
return err
}
if !exists {
err = r.PutV2ImageBlob(endpoint, repoInfo.RemoteName, sumParts[0], manifestSum, utils.ProgressReader(arch, int(img.Size), out, sf, false, utils.TruncateID(img.ID), "Pushing"), auth)
if err != nil {
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Image push failed", nil))
return err
}
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Image successfully pushed", nil))
} else {
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Image already exists", nil))
}
}
// push the manifest
return r.PutV2ImageManifest(endpoint, repoInfo.RemoteName, tag, bytes.NewReader([]byte(manifestBytes)), auth)
}