This module allows us to create Ceph CRUSH hierarchy. The module works
with
hostvars from individual OSD hosts.
Here is an example of the expected configuration in the inventory file:
[osds]
ceph-osd-01 osd_crush_location="{ 'root': 'mon-roottt', 'rack':
'mon-rackkkk', 'pod': 'monpod', 'host': 'localhost' }" # valid case
Then, if create_crush_tree is enabled the module will create the
appropriate CRUSH buckets and their types in Ceph.
Some pre-requesites:
* a 'host' bucket must be defined
* at least two buckets must be defined (this includes the 'host')
Signed-off-by: Sébastien Han <seb@redhat.com>