X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/6599088b45103087b4be743fd51a8330e694e57f..0561bd0c3c07257fd58ded6c7cfa5feeae97af57:/services/keepstore/s3_volume.go

diff --git a/services/keepstore/s3_volume.go b/services/keepstore/s3_volume.go
index d34b8772c5..0fe773a59e 100644
--- a/services/keepstore/s3_volume.go
+++ b/services/keepstore/s3_volume.go
@@ -1,3 +1,7 @@
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
 package main
 
 import (
@@ -239,6 +243,11 @@ func (v *S3Volume) Start() error {
 	return nil
 }
 
+// DeviceID returns a globally unique ID for the storage bucket.
+func (v *S3Volume) DeviceID() string {
+	return "s3://" + v.Endpoint + "/" + v.Bucket
+}
+
 func (v *S3Volume) getReaderWithContext(ctx context.Context, loc string) (rdr io.ReadCloser, err error) {
 	ready := make(chan bool)
 	go func() {