Make swift user an admin

This breaks Ironic's use of temp URLs, which the key for the service
account is configured via the Swift user.

Change-Id: I69f6f6eef4ad573f406d64d579a9811c70ac5d28
Closes-Bug: #1421006
diff --git a/lib/swift b/lib/swift
index e4d8b5f..56baa12 100644
--- a/lib/swift
+++ b/lib/swift
@@ -603,7 +603,9 @@
 
     local another_role=$(openstack role list | awk "/ anotherrole / { print \$2 }")
 
-    create_service_user "swift"
+    # NOTE(jroll): Swift doesn't need the admin role here, however Ironic uses
+    # temp urls, which break when uploaded by a non-admin role
+    create_service_user "swift" "admin"
 
     if [[ "$KEYSTONE_CATALOG_BACKEND" = 'sql' ]]; then