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

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

- name: is ceph running already?
  command: ceph --connect-timeout 3 --cluster {{ cluster }} fsid
  changed_when: false
  failed_when: false
  always_run: yes
  register: ceph_current_fsid
  delegate_to: "{{ groups[mon_group_name][0] }}"

- name: create a local fetch directory if it does not exist
  local_action: file path={{ fetch_directory }} state=directory
  changed_when: false
  become: false
  run_once: true
  when: cephx or generate_fsid

- set_fact:
    fsid: "{{ ceph_current_fsid.stdout }}"
  when: ceph_current_fsid.rc == 0

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

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

# We want this check to be run only on one mon
- name: check if {{ fetch_directory }} directory exists
  local_action: stat path="{{ fetch_directory }}/monitor_keyring.conf"
  register: monitor_keyring_conf
  run_once: true

- block:
  - name: check if /var/lib/ceph/mon/{{ cluster }}-{{ monitor_name }}/keyring already exists
    stat:
      path: /var/lib/ceph/mon/{{ cluster }}-{{ monitor_name }}/keyring
    register: initial_mon_keyring

  - name: fail if /var/lib/ceph/mon/{{ cluster }}-{{ monitor_name }}/keyring doesn't exist
    fail:
      msg: "/var/lib/ceph/mon/{{ cluster }}-{{ monitor_name }}/keyring not found"
    when:
      - not initial_mon_keyring.stat.exists
      - ceph_current_fsid.rc == 0

  - name: get existing initial mon keyring if it already exists but not monitor_keyring.conf in {{ fetch_directory }}
    shell: |
      grep key /var/lib/ceph/mon/{{ cluster }}-{{ monitor_name }}/keyring | sed 's/^.*= //'      
    register: monitor_keyring
    when:
      - not monitor_keyring_conf.stat.exists
      - ceph_current_fsid.rc == 0

  - name: test existing initial mon keyring
    command: ceph --connect-timeout 3 --cluster {{ cluster }} --keyring /var/lib/ceph/mon/{{ cluster }}-{{ monitor_name }}/keyring -n mon. fsid
    register: test_initial_monitor_keyring
    ignore_errors: true

  - name: fail if initial mon keyring found doesn't work
    fail:
      msg: "Initial mon keyring found doesn't work."
    when: test_initial_monitor_keyring.rc != 0

  - name: write initial mon keyring in {{ fetch_directory }}/monitor_keyring.conf if it doesn't exist
    local_action: shell echo {{ monitor_keyring.stdout }} | tee {{ fetch_directory }}/monitor_keyring.conf
    when:
      - test_initial_monitor_keyring.rc == 0

  - name: put initial mon keyring in mon kv store
    command: ceph --cluster {{ cluster }} config-key put initial_mon_keyring {{ monitor_keyring.stdout }}
    when: test_initial_monitor_keyring.rc == 0
  run_once: true
  when:
    - not monitor_keyring_conf.stat.exists
    - ceph_current_fsid.rc == 0
    - mon_group_name in group_names

- 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
  always_run: yes
  register: init_system

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

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

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

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

- set_fact:
    dir_owner: ceph
    dir_group: ceph
    dir_mode: "0755"
  when: ceph_release_num.{{ ceph_release }} > ceph_release_num.hammer

- set_fact:
    dir_owner: root
    dir_group: root
    dir_mode: "0755"
  when: ceph_release_num.{{ ceph_release }} < ceph_release_num.infernalis

- set_fact:
    key_owner: root
    key_group: root
    key_mode: "0600"
  when: ceph_release_num.{{ ceph_release }} < ceph_release_num.infernalis

- set_fact:
    key_owner: ceph
    key_group: ceph
    key_mode: "0600"
  when: ceph_release_num.{{ ceph_release }} > ceph_release_num.hammer

- set_fact:
    activate_file_owner: ceph
    activate_file_group: ceph
    activate_file_mode: "0644"
  when: ceph_release_num.{{ ceph_release }} > ceph_release_num.hammer

- set_fact:
    activate_file_owner: root
    activate_file_group: root
    activate_file_mode: "0644"
  when: ceph_release_num.{{ ceph_release }} < ceph_release_num.infernalis

- set_fact:
    rbd_client_directory_owner: root
  when:
    - ceph_release_num.{{ ceph_release }} < ceph_release_num.infernalis
    - rbd_client_directory_owner is not defined
      or not rbd_client_directory_owner

- set_fact:
    rbd_client_directory_owner: ceph
  when:
    - ceph_release_num.{{ ceph_release }} > ceph_release_num.hammer
    - rbd_client_directory_owner is not defined
      or not rbd_client_directory_owner

- set_fact:
    rbd_client_directory_group: root
  when:
    - ceph_release_num.{{ ceph_release }} < ceph_release_num.infernalis
    - rbd_client_directory_group is not defined
      or not rbd_client_directory_group

- set_fact:
    rbd_client_directory_group: ceph
  when:
    - ceph_release_num.{{ ceph_release }} > ceph_release_num.hammer
    - rbd_client_directory_group is not defined
      or not rbd_client_directory_group

- set_fact:
    rbd_client_directory_mode: "1777"
  when:
    - ceph_release_num.{{ ceph_release }} < ceph_release_num.infernalis
    - rbd_client_directory_mode is not defined
      or not rbd_client_directory_mode

- set_fact:
    rbd_client_directory_mode: "0770"
  when:
    - ceph_release_num.{{ ceph_release }} > ceph_release_num.hammer
    - rbd_client_directory_mode is not defined
      or not rbd_client_directory_mode