ceph-ansible/roles/ceph-common/tasks/facts.yml

---
- name: get ceph version
  command: ceph --version
  changed_when: false
  register: ceph_version

- set_fact:
    ceph_version: "{{ ceph_version.stdout.split(' ')[2] }}"

# NOTE(mattt): On ansible 2.x we can use ansible_service_mgr instead
- name: check init system
  slurp:
    src: /proc/1/comm
  register: init_system

- set_fact:
    init_system={{ init_system.content | b64decode }}

- set_fact:
    use_systemd={{ init_system.strip() == 'systemd' }}

# NOTE (leseb/jsaintrocc): You are supposed to quote variables
# that follow colons to avoid confusion with dicts but this
# causes issues with the boolean, so we keep this syntax styling...
# is_before facts
- set_fact:
    is_before_hammer={{ ceph_version | version_compare('0.94.0', '<') }}

- set_fact:
    is_before_infernalis={{ ceph_version | version_compare('9.0.0', '<') }}

- set_fact:
    is_before_jewel={{ ceph_version | version_compare('10.0.0', '<') }}

- set_fact:
    is_before_kraken={{ ceph_version | version_compare('11.0.0', '<') }}

# is_after facts
- set_fact:
    is_after_hammer={{ ceph_version | version_compare('0.95.0', '>') }}

- set_fact:
    is_after_infernalis={{ ceph_version | version_compare('9.4.0', '>') }}

- set_fact:
    is_after_jewel={{ ceph_version | version_compare('10.4.0', '>') }}

- set_fact:
    is_after_kraken={{ ceph_version | version_compare('11.4.0', '>') }}

# is_version facts
- set_fact:
    is_hammer={{ ceph_version | version_compare('0.94.0', '>=') | version_compare('9.0.0', '<') }}

- set_fact:
    is_infernalis={{ ceph_version | version_compare('9.0.0', '>=') and ceph_version | version_compare('10.0.0', '<') }}

- set_fact:
    is_jewel={{ ceph_version | version_compare('10.0.0', '>=') and ceph_version | version_compare('11.0.0', '<') }}

- set_fact:
    is_kraken={{ ceph_version | version_compare('11.0.0', '>=')  and ceph_version | version_compare('12.0.0', '<') }}

- set_fact:
    mds_name: "{{ ansible_hostname }}"
  when: not mds_use_fqdn

- set_fact:
    mds_name: "{{ ansible_fqdn }}"
  when: mds_use_fqdn