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

---
- name: resolve devices
  when:
    - devices is defined
    - not osd_auto_discovery | default(False) | bool
  block:
    - name: resolve device link(s)
      command: readlink -f {{ item }}
      changed_when: false
      check_mode: no
      with_items: "{{ devices }}"
      register: devices_prepare_canonicalize

    - name: set_fact build devices from resolved symlinks
      set_fact:
        devices: "{{ devices_prepare_canonicalize.results | map(attribute='stdout') | reject('search','/dev/disk') | list | unique }}"

- name: resolve dedicated_device
  when:
    - dedicated_devices is defined
    - not osd_auto_discovery | default(False) | bool
  block:
    - name: resolve dedicated_device link(s)
      command: readlink -f {{ item }}
      changed_when: false
      check_mode: no
      with_items: "{{ dedicated_devices }}"
      register: dedicated_devices_prepare_canonicalize

    - name: set_fact build dedicated_devices from resolved symlinks
      set_fact:
        dedicated_devices: "{{ dedicated_devices_prepare_canonicalize.results | map(attribute='stdout') | reject('search','/dev/disk') | list | unique }}"

- name: resolve bluestore_wal_device
  when:
    - bluestore_wal_devices is defined
    - not osd_auto_discovery | default(False) | bool
  block:
    - name: resolve bluestore_wal_device link(s)
      command: readlink -f {{ item }}
      changed_when: false
      check_mode: no
      with_items: "{{ bluestore_wal_devices }}"
      register: bluestore_wal_devices_prepare_canonicalize

    - name: set_fact build bluestore_wal_devices from resolved symlinks
      set_fact:
        bluestore_wal_devices: "{{ bluestore_wal_devices_prepare_canonicalize.results | map(attribute='stdout') | reject('search','/dev/disk') | list | unique }}"

- name: set_fact devices generate device list when osd_auto_discovery
  vars:
    device: "{{ item.key | regex_replace('^', '/dev/') }}"
  set_fact:
    devices: "{{ devices | default([]) | union([device]) }}"
  with_dict: "{{ ansible_facts['devices'] }}"
  when:
    - osd_auto_discovery | default(False) | bool
    - ansible_facts['devices'] is defined
    - item.value.removable == "0"
    - item.value.sectors != "0"
    - item.value.partitions|count == 0
    - item.value.holders|count == 0
    - ansible_facts['mounts'] | selectattr('device', 'equalto', device) | list | length == 0
    - item.key is not match osd_auto_discovery_exclude
    - device not in dedicated_devices | default([])
    - device not in bluestore_wal_devices | default([])