ceph-ansible/roles/ceph-mon/tasks/set_osd_pool_default_pg_num.yml

# NOTE(leseb): we add a conditional for backward compatibility
# so people that had 'pool_default_pg_num' declared will get
# the same behaviour
#
- name: check if does global key exist in ceph_conf_overrides
  set_fact:
    global_in_ceph_conf_overrides: "{{ 'global' in ceph_conf_overrides }}"

- name: check if ceph_conf_overrides.global.osd_pool_default_pg_num is set
  set_fact:
    osd_pool_default_pg_num_in_overrides: "{{ 'osd_pool_default_pg_num' in ceph_conf_overrides.global }}"
  when: global_in_ceph_conf_overrides

- name: get default value for osd_pool_default_pg_num
  shell: |
   {{ docker_exec_cmd }} ceph --cluster {{ cluster }} daemon mon.{{ monitor_name }} config get osd_pool_default_pg_num | grep -Po '(?<="osd_pool_default_pg_num": ")[^"]*'
  failed_when: false
  changed_when: false
  run_once: true
  register: default_pool_default_pg_num
  when: pool_default_pg_num is not defined or not global_in_ceph_conf_overrides

- name: set_fact osd_pool_default_pg_num pool_default_pg_num
  set_fact:
    osd_pool_default_pg_num: "{{ pool_default_pg_num }}"
  when: pool_default_pg_num is defined

- name: set_fact osd_pool_default_pg_num default_pool_default_pg_num.stdout
  set_fact:
    osd_pool_default_pg_num: "{{ default_pool_default_pg_num.stdout }}"
  when:
    - pool_default_pg_num is not defined
    - default_pool_default_pg_num.rc == 0
    - (osd_pool_default_pg_num_in_overrides is not defined or not osd_pool_default_pg_num_in_overrides)

- name: set_fact osd_pool_default_pg_num ceph_conf_overrides.global.osd_pool_default_pg_num
  set_fact:
    osd_pool_default_pg_num: "{{ ceph_conf_overrides.global.osd_pool_default_pg_num }}"
  when:
    - global_in_ceph_conf_overrides
    - ceph_conf_overrides.global.osd_pool_default_pg_num is defined