Golang Image.DockerImageSignatures方法代码示例

func autoConvert_v1_Image_To_api_Image(in *Image, out *api.Image, s conversion.Scope) error {
	if err := api_v1.Convert_v1_ObjectMeta_To_api_ObjectMeta(&in.ObjectMeta, &out.ObjectMeta, s); err != nil {
		return err
	}
	out.DockerImageReference = in.DockerImageReference
	// TODO: Inefficient conversion - can we improve it?
	if err := s.Convert(&in.DockerImageMetadata, &out.DockerImageMetadata, 0); err != nil {
		return err
	}
	out.DockerImageMetadataVersion = in.DockerImageMetadataVersion
	out.DockerImageManifest = in.DockerImageManifest
	out.DockerImageLayers = *(*[]api.ImageLayer)(unsafe.Pointer(&in.DockerImageLayers))
	if in.Signatures != nil {
		in, out := &in.Signatures, &out.Signatures
		*out = make([]api.ImageSignature, len(*in))
		for i := range *in {
			if err := Convert_v1_ImageSignature_To_api_ImageSignature(&(*in)[i], &(*out)[i], s); err != nil {
				return err
			}
		}
	} else {
		out.Signatures = nil
	}
	out.DockerImageSignatures = *(*[][]byte)(unsafe.Pointer(&in.DockerImageSignatures))
	out.DockerImageManifestMediaType = in.DockerImageManifestMediaType
	out.DockerImageConfig = in.DockerImageConfig
	return nil
}

// signedManifestFillImageMetadata fills a given image with metadata. It also corrects layer sizes with blob sizes. Newer
// Docker client versions don't set layer sizes in the manifest at all. Origin master needs correct layer
// sizes for proper image quota support. That's why we need to fill the metadata in the registry.
func (r *repository) signedManifestFillImageMetadata(manifest *schema1.SignedManifest, image *imageapi.Image) error {
	signatures, err := manifest.Signatures()
	if err != nil {
		return err
	}

	for _, signDigest := range signatures {
		image.DockerImageSignatures = append(image.DockerImageSignatures, signDigest)
	}

	if err := imageapi.ImageWithMetadata(image); err != nil {
		return err
	}

	refs := manifest.References()

	blobSet := sets.NewString()
	image.DockerImageMetadata.Size = int64(0)

	blobs := r.Blobs(r.ctx)
	for i := range image.DockerImageLayers {
		layer := &image.DockerImageLayers[i]
		// DockerImageLayers represents manifest.Manifest.FSLayers in reversed order
		desc, err := blobs.Stat(r.ctx, refs[len(image.DockerImageLayers)-i-1].Digest)
		if err != nil {
			context.GetLogger(r.ctx).Errorf("failed to stat blobs %s of image %s", layer.Name, image.DockerImageReference)
			return err
		}
		if layer.MediaType == "" {
			if desc.MediaType != "" {
				layer.MediaType = desc.MediaType
			} else {
				layer.MediaType = schema1.MediaTypeManifestLayer
			}
		}
		layer.LayerSize = desc.Size
		// count empty layer just once (empty layer may actually have non-zero size)
		if !blobSet.Has(layer.Name) {
			image.DockerImageMetadata.Size += desc.Size
			blobSet.Insert(layer.Name)
		}
	}
	if len(image.DockerImageConfig) > 0 && !blobSet.Has(image.DockerImageMetadata.ID) {
		blobSet.Insert(image.DockerImageMetadata.ID)
		image.DockerImageMetadata.Size += int64(len(image.DockerImageConfig))
	}

	return nil
}

func Convert_v1_Image_To_api_Image(in *Image, out *newer.Image, s conversion.Scope) error {
	if err := s.Convert(&in.ObjectMeta, &out.ObjectMeta, 0); err != nil {
		return err
	}

	out.DockerImageReference = in.DockerImageReference
	out.DockerImageManifest = in.DockerImageManifest
	out.DockerImageManifestMediaType = in.DockerImageManifestMediaType
	out.DockerImageConfig = in.DockerImageConfig

	version := in.DockerImageMetadataVersion
	if len(version) == 0 {
		version = "1.0"
	}
	if len(in.DockerImageMetadata.Raw) > 0 {
		// TODO: add a way to default the expected kind and version of an object if not set
		obj, err := api.Scheme.New(unversioned.GroupVersionKind{Version: version, Kind: "DockerImage"})
		if err != nil {
			return err
		}
		if err := runtime.DecodeInto(api.Codecs.UniversalDecoder(), in.DockerImageMetadata.Raw, obj); err != nil {
			return err
		}
		if err := s.Convert(obj, &out.DockerImageMetadata, 0); err != nil {
			return err
		}
	}
	out.DockerImageMetadataVersion = version

	if in.DockerImageLayers != nil {
		out.DockerImageLayers = make([]newer.ImageLayer, len(in.DockerImageLayers))
		for i := range in.DockerImageLayers {
			out.DockerImageLayers[i].MediaType = in.DockerImageLayers[i].MediaType
			out.DockerImageLayers[i].Name = in.DockerImageLayers[i].Name
			out.DockerImageLayers[i].LayerSize = in.DockerImageLayers[i].LayerSize
		}
	} else {
		out.DockerImageLayers = nil
	}

	if in.Signatures != nil {
		out.Signatures = make([]newer.ImageSignature, len(in.Signatures))
		for i := range in.Signatures {
			if err := s.Convert(&in.Signatures[i], &out.Signatures[i], 0); err != nil {
				return err
			}
		}
	} else {
		out.Signatures = nil
	}

	if in.DockerImageSignatures != nil {
		out.DockerImageSignatures = nil
		for _, v := range in.DockerImageSignatures {
			out.DockerImageSignatures = append(out.DockerImageSignatures, v)
		}
	} else {
		out.DockerImageSignatures = nil
	}

	return nil
}