Method GetBlob

docker/tarfile/src.go:84–86

GetBlob returns a stream for the specified blob, and the blob’s size (or -1 if unknown). The Digest field in BlobInfo is guaranteed to be provided, Size may be -1 and MediaType may be optionally provided. May update BlobInfoCache, preferably after it knows for certain that a blob truly exists at a s

(ctx context.Context, info types.BlobInfo, cache types.BlobInfoCache)

// The Digest field in BlobInfo is guaranteed to be provided, Size may be -1 and MediaType may be optionally provided.
// May update BlobInfoCache, preferably after it knows for certain that a blob truly exists at a specific location.
func (s *Source) GetBlob(ctx context.Context, info types.BlobInfo, cache types.BlobInfoCache) (io.ReadCloser, int64, error) {
	return s.internal.GetBlob(ctx, info, cache)
}

// GetSignatures returns the image's signatures.  It may use a remote (= slow) service.
// This source implementation does not support manifest lists, so the passed-in instanceDigest should always be nil,