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

---
- name: check if it is atomic host
  stat:
    path: /run/ostree-booted
  register: stat_ostree

- name: set_fact is_atomic
  set_fact:
    is_atomic: "{{ stat_ostree.stat.exists }}"

- name: set_fact monitor_name ansible_hostname
  set_fact:
    monitor_name: "{{ ansible_hostname }}"
  when:
    - not mon_use_fqdn

- name: set_fact monitor_name ansible_fqdn
  set_fact:
    monitor_name: "{{ ansible_fqdn }}"
  when:
    - mon_use_fqdn

- name: set_fact docker_exec_cmd
  set_fact:
    docker_exec_cmd: "docker exec ceph-mon-{{ hostvars[groups[mon_group_name][0]]['ansible_hostname'] }}"
  delegate_to: "{{ groups[mon_group_name][0] }}"
  when:
    - containerized_deployment
    - groups.get(mon_group_name, []) | length > 0

# this task shouldn't run in a rolling_update situation
# because it blindly picks a mon, which may be down because
# of the rolling update
- name: is ceph running already?
  command: "timeout 5 {{ docker_exec_cmd }} ceph --cluster {{ cluster }} -s -f json"
  changed_when: false
  failed_when: false
  check_mode: no
  register: ceph_current_status
  run_once: true
  delegate_to: "{{ groups[mon_group_name][0] }}"
  when:
    - not rolling_update
    - groups.get(mon_group_name, []) | length > 0

# We want this check to be run only on the first node
- name: check if {{ fetch_directory }} directory exists
  local_action:
    module: stat
    path: "{{ fetch_directory }}/monitor_keyring.conf"
  become: false
  register: monitor_keyring_conf
  run_once: true

# set this as a default when performing a rolling_update
# so the rest of the tasks here will succeed
- name: set_fact ceph_current_status rc 1
  set_fact:
    ceph_current_status:
      rc: 1
  when:
    - rolling_update or groups.get(mon_group_name, []) | length == 0

- name: create a local fetch directory if it does not exist
  local_action:
    module: file
    path: "{{ fetch_directory }}"
    state: directory
  changed_when: false
  become: false
  when:
    - (cephx or generate_fsid)

- name: set_fact ceph_current_status (convert to json)
  set_fact:
    ceph_current_status: "{{ ceph_current_status.stdout | from_json }}"
  when:
    - not rolling_update
    - ceph_current_status.rc == 0

- name: set_fact fsid from ceph_current_status
  set_fact:
    fsid: "{{ ceph_current_status.fsid }}"
  when:
    - ceph_current_status.fsid is defined

- name: generate cluster fsid
  local_action:
    module: shell
      python -c 'import uuid; print(str(uuid.uuid4()))' | tee {{ fetch_directory }}/ceph_cluster_uuid.conf
    creates: "{{ fetch_directory }}/ceph_cluster_uuid.conf"
  register: cluster_uuid
  become: false
  when:
    - generate_fsid
    - ceph_current_status.fsid is undefined

- name: reuse cluster fsid when cluster is already running
  local_action:
    module: shell
      echo {{ fsid }} | tee {{ fetch_directory }}/ceph_cluster_uuid.conf
    creates: "{{ fetch_directory }}/ceph_cluster_uuid.conf"
  become: false
  when:
    - ceph_current_status.fsid is defined

- name: read cluster fsid if it already exists
  local_action:
    module: command
      cat {{ fetch_directory }}/ceph_cluster_uuid.conf
    removes: "{{ fetch_directory }}/ceph_cluster_uuid.conf"
  changed_when: false
  register: cluster_uuid
  become: false
  check_mode: no
  when:
    - generate_fsid

- name: set_fact fsid
  set_fact:
    fsid: "{{ cluster_uuid.stdout }}"
  when:
    - generate_fsid

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

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

- name: set_fact rbd_client_directory_owner ceph
  set_fact:
    rbd_client_directory_owner: ceph
  when:
    - rbd_client_directory_owner is not defined
      or not rbd_client_directory_owner

- name: set_fact rbd_client_directory_group rbd_client_directory_group
  set_fact:
    rbd_client_directory_group: ceph
  when:
    - rbd_client_directory_group is not defined
      or not rbd_client_directory_group

- name: set_fact rbd_client_directory_mode 0770
  set_fact:
    rbd_client_directory_mode: "0770"
  when:
    - rbd_client_directory_mode is not defined
      or not rbd_client_directory_mode

- name: resolve device link(s)
  command: readlink -f {{ item }}
  changed_when: false
  with_items: "{{ devices }}"
  register: devices_prepare_canonicalize
  when:
    - devices is defined
    - inventory_hostname in groups.get(osd_group_name, [])
    - not osd_auto_discovery|default(False)
    - osd_scenario|default('dummy') != 'lvm'

- name: set_fact build devices from resolved symlinks
  set_fact:
    devices: "{{ devices | default([]) + [ item.stdout ] }}"
  with_items: "{{ devices_prepare_canonicalize.results }}"
  when:
    - devices is defined
    - inventory_hostname in groups.get(osd_group_name, [])
    - not osd_auto_discovery|default(False)
    - osd_scenario|default('dummy') != 'lvm'

- name: set_fact build final devices list
  set_fact:
    devices: "{{ devices | reject('search','/dev/disk') | list | unique }}"
  when:
    - devices is defined
    - inventory_hostname in groups.get(osd_group_name, [])
    - not osd_auto_discovery|default(False)
    - osd_scenario|default('dummy') != 'lvm'

- name: set_fact ceph_uid for debian based system - non container
  set_fact:
    ceph_uid: 64045
  when:
    - not containerized_deployment
    - ansible_os_family == 'Debian'

- name: set_fact ceph_uid for red hat or suse based system - non container
  set_fact:
    ceph_uid: 167
  when:
    - not containerized_deployment
    - ansible_os_family in ['RedHat', 'Suse']

- name: set_fact ceph_uid for debian based system - container
  set_fact:
    ceph_uid: 64045
  when:
    - containerized_deployment
    - ceph_docker_image_tag | string is search("ubuntu")

- name: set_fact ceph_uid for red hat based system - container
  set_fact:
    ceph_uid: 167
  when:
    - containerized_deployment
    - ceph_docker_image_tag | string is search("latest") or ceph_docker_image_tag | string is search("centos") or ceph_docker_image_tag | string is search("fedora")

- name: set_fact ceph_uid for red hat
  set_fact:
    ceph_uid: 167
  when:
    - containerized_deployment
    - ceph_docker_image is search("rhceph")

- name: set_fact rgw_hostname
  set_fact:
    rgw_hostname: "{% set _value = ansible_hostname -%}
    {% for key in ceph_current_status['servicemap']['services']['rgw']['daemons'].keys() -%}
    {% if key == ansible_fqdn -%}
    {% set _value = key -%}
    {% endif -%}
    {% endfor -%}
    {{ _value }}"
  when:
    - inventory_hostname in groups.get(rgw_group_name, []) or inventory_hostname in groups.get(nfs_group_name, [])
    - ceph_current_status['servicemap'] is defined
    - ceph_current_status['servicemap']['services'] is defined
    - ceph_current_status['servicemap']['services']['rgw'] is defined

- name: set_fact osd_pool_default_pg_num
  set_fact:
    osd_pool_default_pg_num: "{{ ceph_conf_overrides.get('global', {}).get('osd_pool_default_pg_num', ceph_osd_pool_default_pg_num) }}"

- name: set_fact osd_pool_default_size
  set_fact:
    osd_pool_default_size: "{{ ceph_conf_overrides.get('global', {}).get('osd_pool_default_size', ceph_osd_pool_default_size) }}"

- name: check if the ceph conf exists
  stat:
    path: '/etc/ceph/{{ cluster }}.conf'
  register: ceph_conf

- name: get default crush rule value from ceph configuration
  command: grep 'osd pool default crush rule' /etc/ceph/{{ cluster }}.conf
  register: crush_rule_variable
  changed_when: false
  failed_when: false
  when: ceph_conf.stat.exists

- name: set_fact osd_pool_default_crush_rule
  set_fact:
    osd_pool_default_crush_rule: "{% if crush_rule_variable.rc == 0 %}{{ crush_rule_variable.stdout.split(' = ')[1] }}{% else %}{{ ceph_osd_pool_default_crush_rule }}{% endif %}"
  when: ceph_conf.stat.exists