Function newImageDestination

docker/docker_image_dest.go:54–88

newImageDestination creates a new ImageDestination for the specified image reference.

(sys *types.SystemContext, ref dockerReference)

// newImageDestination creates a new ImageDestination for the specified image reference.
func newImageDestination(sys *types.SystemContext, ref dockerReference) (private.ImageDestination, error) {
	registryConfig, err := loadRegistryConfiguration(sys)
	if err != nil {
		return nil, err
	}
	c, err := newDockerClientFromRef(sys, ref, registryConfig, true, "pull,push")
	if err != nil {
		return nil, err
	}
	mimeTypes := []string{
		imgspecv1.MediaTypeImageManifest,
		manifest.DockerV2Schema2MediaType,
		imgspecv1.MediaTypeImageIndex,
		manifest.DockerV2ListMediaType,
	}
	if c.sys == nil || !c.sys.DockerDisableDestSchema1MIMETypes {
		mimeTypes = append(mimeTypes, manifest.DockerV2Schema1SignedMediaType, manifest.DockerV2Schema1MediaType)
	}

	dest := &dockerImageDestination{
		PropertyMethodsInitialize: impl.PropertyMethods(impl.Properties{
			SupportedManifestMIMETypes:     mimeTypes,
			DesiredLayerCompression:        types.Compress,
			MustMatchRuntimeOS:             false,
			IgnoresEmbeddedDockerReference: false, // We do want the manifest updated; older registry versions refuse manifests if the embedded reference does not match.
			HasThreadSafePutBlob:           true,
		}),
		NoPutBlobPartialInitialize: stubs.NoPutBlobPartial(ref),

		ref: ref,
		c:   c,
	}
	dest.Compat = impl.AddCompat(dest)
	return dest, nil
}

// Reference returns the reference used to set up this destination.  Note that this should directly correspond to user's intent,
// e.g. it should use the public hostname instead of the result of resolving CNAMEs or following redirects.