// ManifestMatchesImage returns true if the provided manifest matches the name of the image.
func ManifestMatchesImage(image *Image, newManifest []byte) (bool, error) {
dgst, err := digest.ParseDigest(image.Name)
if err != nil {
return false, err
}
v, err := digest.NewDigestVerifier(dgst)
if err != nil {
return false, err
}
var canonical []byte
switch image.DockerImageManifestMediaType {
case schema2.MediaTypeManifest:
var m schema2.DeserializedManifest
if err := json.Unmarshal(newManifest, &m); err != nil {
return false, err
}
_, canonical, err = m.Payload()
if err != nil {
return false, err
}
case schema1.MediaTypeManifest, "":
var m schema1.SignedManifest
if err := json.Unmarshal(newManifest, &m); err != nil {
return false, err
}
canonical = m.Canonical
default:
return false, fmt.Errorf("unsupported manifest mediatype: %s", image.DockerImageManifestMediaType)
}
if _, err := v.Write(canonical); err != nil {
return false, err
}
return v.Verified(), nil
}
func schema2ToImage(manifest *schema2.DeserializedManifest, imageConfig []byte, d digest.Digest) (*api.Image, error) {
mediatype, payload, err := manifest.Payload()
if err != nil {
return nil, err
}
dockerImage, err := unmarshalDockerImage(imageConfig)
if err != nil {
return nil, err
}
if len(d) > 0 {
dockerImage.ID = d.String()
} else {
dockerImage.ID = digest.FromBytes(payload).String()
}
image := &api.Image{
ObjectMeta: kapi.ObjectMeta{
Name: dockerImage.ID,
},
DockerImageMetadata: *dockerImage,
DockerImageManifest: string(payload),
DockerImageConfig: string(imageConfig),
DockerImageManifestMediaType: mediatype,
DockerImageMetadataVersion: "1.0",
}
return image, nil
}