Пример #1
0
func (b *bridge) createLayerEvent(action string, repo distribution.Repository, layer distribution.Layer) (*Event, error) {
	event := b.createEvent(action)
	event.Target.MediaType = layerMediaType
	event.Target.Repository = repo.Name()

	event.Target.Length = layer.Length()

	dgst := layer.Digest()
	event.Target.Digest = dgst

	var err error
	event.Target.URL, err = b.ub.BuildBlobURL(repo.Name(), dgst)
	if err != nil {
		return nil, err
	}

	return event, nil
}
Пример #2
0
// extractLayerInfo pulls the layerInfo from the layer, attempting to get the
// path information from either the concrete object or by resolving the
// primary blob store path.
func (lc *cachedLayerService) resolveLayerPath(layer distribution.Layer) (path string, err error) {
	// try and resolve the type and driver, so we don't have to traverse links
	switch v := layer.(type) {
	case *layerReader:
		// only set path if we have same driver instance.
		if v.driver == lc.driver {
			return v.path, nil
		}
	}

	ctxu.GetLogger(lc.ctx).Warnf("resolving layer path during cache lookup (%v@%v)", lc.repository.Name(), layer.Digest())
	// we have to do an expensive stat to resolve the layer location but no
	// need to check the link, since we already have layer instance for this
	// repository.
	bp, err := lc.blobStore.path(layer.Digest())
	if err != nil {
		return "", err
	}

	return bp, nil
}