overrides:
  ceph:
    crush_tunables: hammer
    conf:
      mon:
        mon osd initial require min compat client: hammer
      client:
        ms type: simple
tasks:
- install:
    branch: hammer
    downgrade_packages: ['librbd1', 'librados2']
    exclude_packages: ['ceph-mgr','libcephfs2','libcephfs-devel','libcephfs-dev', 'librados3', 'libradospp-devel']
    extra_packages: ['librados2']
- install.upgrade:
    mon.a:
    mon.b:
    mon.c: