72e498600b
when gnocchi use ceph as backend, need set gnocchi_backend_storage: "ceph", gnocchi will pull keyring from ceph mon node [0], but the site.yml missing it. [0]: https://github.com/openstack/kolla-ansible/blob/master/ansible/roles/gnocchi/tasks/ceph.yml#L39 Change-Id: Ib33c26ee1fdfe683e5c9b3ef987d6da2c588116a Closes-Bug: #1744010