Ceph - filestore-to-bluestore.yml playbook fails on TASK [get osd metadata]

Issue

• Converting the OSDs from filestore to bluestore via the filestore-to-bluestore.yml playbook as outlined in RHCS 4.x Administration Guide, results in the following error on the following task:

TASK [get osd metadata] ***********************************************************************************
Wednesday 04 August 2021  12:14:56 -0400 (0:00:00.057)       0:00:04.256 ****** 
failed: [10.74.178.224 -> 10.74.181.196] (item=None) => changed=false 
  ansible_loop_var: item
  cmd:
  - ceph
  - --cluster
  - ceph
  - osd
  - metadata
  - osd.
  - -f
  - json
  delta: '0:00:00.598860'
  end: '2021-08-04 12:14:56.864387'
  item: null
  msg: non-zero return code
  rc: 22
  start: '2021-08-04 12:14:56.265527'
  stderr: |-
    osd. not valid:  osd id  not integer
    Invalid command: unused arguments: [u'osd.']
    osd metadata {<osdname (id|osd.id)>} :  fetch metadata for osd {id} (default all)
    Error EINVAL: invalid command
  stderr_lines: <omitted>
  stdout: ''
  stdout_lines: <omitted>