I've opened an upstream PR that should fix this issue: https://github.com/ceph/ceph-ansible/pull/1057
The upstream PR has been merged and I've pushed commit 6b54227c5bb7e6859d5d22b3f25e257b8543e676 downstream.
Verfied in build: ceph-ansible-1.0.5-38.el7scon
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2016:2817