Method resolveAllReferences

daemon/containerd/image.go:272–394

resolveAllReferences resolves the reference name or ID to an image and returns all the images with the same target. Returns: 1: *(github.com/containerd/containerd/images).Image An image match from the image store with the provided refOrID 2: [](github.com/containerd/containerd/images).Image L

(ctx context.Context, refOrID string)

//	An error looking up refOrID or no images found with matching name or target. Note that the first
//	argument may be nil with a nil error if the second argument is non-empty.
func (i *ImageService) resolveAllReferences(ctx context.Context, refOrID string) (*c8dimages.Image, []c8dimages.Image, error) {
	parsed, err := reference.ParseAnyReference(refOrID)
	if err != nil {
		return nil, nil, errdefs.InvalidParameter(err)
	}
	var dgst digest.Digest
	var img *c8dimages.Image

	if idWithoutAlgo := checkTruncatedID(refOrID); idWithoutAlgo != "" { // Valid ID.
		if d, ok := parsed.(reference.Digested); ok {
			if cimg, err := i.images.Get(ctx, d.String()); err == nil {
				img = &cimg
				dgst = d.Digest()
				if cimg.Target.Digest != dgst {
					// Ambiguous image reference, use reference name
					log.G(ctx).WithField("image", refOrID).WithField("target", cimg.Target.Digest).Warn("digest reference points to image with a different digest")
					dgst = cimg.Target.Digest
				}
			} else if !cerrdefs.IsNotFound(err) {
				return nil, nil, err
			} else {
				dgst = d.Digest()
			}
		} else {
			name := reference.TagNameOnly(parsed.(reference.Named)).String()
			filters := []string{
				fmt.Sprintf("name==%q", name), // Or it could just look like one.
				"target.digest~=" + strconv.Quote(fmt.Sprintf(`^sha256:%s[0-9a-fA-F]{%d}$`, regexp.QuoteMeta(idWithoutAlgo), 64-len(idWithoutAlgo))),
			}
			imgs, err := i.images.List(ctx, filters...)
			if err != nil {
				return nil, nil, err
			}

			if len(imgs) == 0 {
				return nil, nil, images.ErrImageDoesNotExist{Ref: parsed}
			}

			for _, limg := range imgs {
				if limg.Name == name {
					copyImg := limg
					img = &copyImg
				}
				if dgst != "" {
					if limg.Target.Digest != dgst {
						return nil, nil, errdefs.NotFound(errors.New("ambiguous reference"))
					}
				} else {
					dgst = limg.Target.Digest
				}
			}

			// Return immediately if target digest matches already included
			if img == nil || len(imgs) > 1 {
				return img, imgs, nil
			}
		}
	} else {