roles:
- - mon.a
  - mgr.x
  - osd.0
  - osd.1
  - client.a
openstack:
  - volumes: # attached to each instance
      count: 2
      size: 10 # GB
tasks:
- install:
- ceph:
- admin_socket:
    osd.0:
      version:
      git_version:
      help:
      config show:
      config help:
      config set filestore_dump_file /tmp/foo:
      perf dump:
      perf schema:
      get_heap_property tcmalloc.max_total_thread_cache_byte:
      set_heap_property tcmalloc.max_total_thread_cache_bytes 67108864:
      set_heap_property tcmalloc.max_total_thread_cache_bytes 33554432: