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: import_tasks container_binary.yml
  import_tasks: container_binary.yml

# In case ansible_python_interpreter is set by the user,
# ansible will not discover python and discovered_interpreter_python
# will not be set
- name: set_fact discovered_interpreter_python
  set_fact:
    discovered_interpreter_python: "{{ ansible_python_interpreter }}"
  when: ansible_python_interpreter is defined

# If ansible_python_interpreter is not defined, this can result in the
# discovered_interpreter_python fact from being set. This fails later in this
# playbook and is used elsewhere.
- name: set_fact discovered_interpreter_python if not previously set
  set_fact:
    discovered_interpreter_python: "{{ ansible_facts['discovered_interpreter_python'] }}"
  when:
    - discovered_interpreter_python is not defined
    - ansible_facts['discovered_interpreter_python'] is defined

# Set ceph_release to ceph_stable by default
- name: set_fact ceph_release ceph_stable_release
  set_fact:
    ceph_release: "{{ ceph_stable_release }}"

- name: set_fact monitor_name ansible_facts['hostname']
  set_fact:
    monitor_name: "{{ hostvars[item]['ansible_facts']['hostname'] }}"
  delegate_to: "{{ item }}"
  delegate_facts: true
  with_items: "{{ groups.get(mon_group_name, []) }}"
  run_once: true
  when: groups.get(mon_group_name, []) | length > 0

- name: find a running monitor
  when: groups.get(mon_group_name, []) | length > 0
  block:
    - name: set_fact container_exec_cmd
      set_fact:
        container_exec_cmd: "{{ container_binary }} exec ceph-mon-{{ hostvars[groups[mon_group_name][0]]['ansible_facts']['hostname'] if not rolling_update | bool else hostvars[mon_host | default(groups[mon_group_name][0])]['ansible_facts']['hostname'] }}"
      when:
        - containerized_deployment | bool

    - name: find a running mon container
      command: "{{ container_binary }} ps -q --filter name=ceph-mon-{{ hostvars[item]['ansible_facts']['hostname'] }}"
      register: find_running_mon_container
      failed_when: false
      run_once: true
      delegate_to: "{{ item }}"
      with_items: "{{ groups.get(mon_group_name, []) }}"
      when:
        - containerized_deployment | bool

    - name: check for a ceph mon socket
      shell: stat --printf=%n {{ rbd_client_admin_socket_path }}/{{ cluster }}-mon*.asok
      changed_when: false
      failed_when: false
      check_mode: no
      register: mon_socket_stat
      run_once: true
      delegate_to: "{{ item }}"
      with_items: "{{ groups.get(mon_group_name, []) }}"
      when:
        - not containerized_deployment | bool

    - name: check if the ceph mon socket is in-use
      command: grep -q {{ item.stdout }} /proc/net/unix
      changed_when: false
      failed_when: false
      check_mode: no
      register: mon_socket
      run_once: true
      delegate_to: "{{ hostvars[item.item]['inventory_hostname'] }}"
      with_items: "{{ mon_socket_stat.results }}"
      when:
        - not containerized_deployment | bool
        - item.rc == 0

    - name: set_fact running_mon - non_container
      set_fact:
        running_mon: "{{ hostvars[item.item.item]['inventory_hostname'] }}"
      with_items: "{{ mon_socket.results }}"
      run_once: true
      when:
        - not containerized_deployment | bool
        - item.rc is defined
        - item.rc == 0

    - name: set_fact running_mon - container
      set_fact:
        running_mon: "{{ item.item }}"
      run_once: true
      with_items: "{{ find_running_mon_container.results }}"
      when:
        - containerized_deployment | bool
        - item.stdout_lines | default([]) | length > 0

    - name: set_fact _container_exec_cmd
      set_fact:
        _container_exec_cmd: "{{ container_binary }} exec ceph-mon-{{ hostvars[groups[mon_group_name][0] if running_mon is undefined else running_mon]['ansible_facts']['hostname'] }}"
      when:
        - containerized_deployment | bool

    # 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: get current fsid if cluster is already running
      command: "{{ timeout_command }} {{ _container_exec_cmd | default('') }} ceph --cluster {{ cluster }} fsid"
      changed_when: false
      failed_when: false
      check_mode: no
      register: current_fsid
      run_once: true
      delegate_to: "{{ groups[mon_group_name][0] if running_mon is undefined else running_mon }}"
      when:
        - not rolling_update | bool

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

- name: get current fsid
  command: "{{ timeout_command }} {{ container_exec_cmd }} ceph --admin-daemon /var/run/ceph/{{ cluster }}-mon.{{ hostvars[mon_host | default(groups[mon_group_name][0])]['ansible_facts']['hostname'] }}.asok config get fsid"
  register: rolling_update_fsid
  delegate_to: "{{ mon_host | default(groups[mon_group_name][0]) }}"
  until: rolling_update_fsid is succeeded
  when:
    - rolling_update | bool
    - groups.get(mon_group_name, []) | length > 0

- name: set_fact fsid
  set_fact:
    fsid: "{{ (rolling_update_fsid.stdout | from_json).fsid }}"
  when:
    - rolling_update | bool
    - groups.get(mon_group_name, []) | length > 0

- name: set_fact fsid from current_fsid
  set_fact:
    fsid: "{{ current_fsid.stdout }}"
  run_once: true
  when: current_fsid.rc == 0

- name: fsid related tasks
  when:
    - generate_fsid | bool
    - current_fsid.rc != 0
    - not rolling_update | bool
  block:
    - name: generate cluster fsid
      command: "{{ hostvars[groups[mon_group_name][0]]['discovered_interpreter_python'] }} -c 'import uuid; print(str(uuid.uuid4()))'"
      register: cluster_uuid
      delegate_to: "{{ groups[mon_group_name][0] }}"
      run_once: true

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

- name: resolve device link(s)
  command: readlink -f {{ item }}
  changed_when: false
  check_mode: no
  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) | bool

- 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) | bool

- 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) | bool

- 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
  when:
    - dedicated_devices is defined
    - inventory_hostname in groups.get(osd_group_name, [])
    - not osd_auto_discovery | default(False) | bool

- name: set_fact build dedicated_devices from resolved symlinks
  set_fact:
    dedicated_devices: "{{ dedicated_devices | default([]) + [ item.stdout ] }}"
  with_items: "{{ dedicated_devices_prepare_canonicalize.results }}"
  when:
    - dedicated_devices is defined
    - inventory_hostname in groups.get(osd_group_name, [])
    - not osd_auto_discovery | default(False) | bool

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

- 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
  when:
    - bluestore_wal_devices is defined
    - inventory_hostname in groups.get(osd_group_name, [])
    - not osd_auto_discovery | default(False) | bool

- name: set_fact build bluestore_wal_devices from resolved symlinks
  set_fact:
    bluestore_wal_devices: "{{ bluestore_wal_devices | default([]) + [ item.stdout ] }}"
  with_items: "{{ bluestore_wal_devices_prepare_canonicalize.results }}"
  when:
    - bluestore_wal_devices is defined
    - inventory_hostname in groups.get(osd_group_name, [])
    - not osd_auto_discovery | default(False) | bool

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

- name: set_fact devices generate device list when osd_auto_discovery
  set_fact:
    devices: "{{ (devices | default([]) + [ item.key | regex_replace('^', '/dev/') ]) | unique }}"
  with_dict: "{{ ansible_facts['devices'] }}"
  when:
    - osd_auto_discovery | default(False) | bool
    - inventory_hostname in groups.get(osd_group_name, [])
    - ansible_facts['devices'] is defined
    - item.value.removable == "0"
    - item.value.sectors != "0"
    - item.value.partitions|count == 0
    - item.value.holders|count == 0
    - item.key is not match osd_auto_discovery_exclude

- name: backward compatibility tasks related
  when:
    - (inventory_hostname in groups.get(rgw_group_name, []) or inventory_hostname in groups.get(nfs_group_name, []))
    - groups.get(mon_group_name, []) | length > 0
  block:
    - name: get ceph current status
      command: "{{ timeout_command }} {{ _container_exec_cmd | default('') }} ceph --cluster {{ cluster }} service dump -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] if running_mon is undefined else running_mon }}"

    - name: set_fact ceph_current_status
      set_fact:
        ceph_current_status: "{{ ceph_current_status.stdout | from_json }}"
      run_once: true
      when: ceph_current_status.rc == 0

    - name: set_fact rgw_hostname
      set_fact:
        rgw_hostname: "{% set _value = ansible_facts['hostname'] -%}
        {% for key in (ceph_current_status['services']['rgw']['daemons'] | list) -%}
        {% if key == ansible_facts['fqdn'] -%}
        {% set _value = key -%}
        {% endif -%}
        {% endfor -%}
        {{ _value }}"
      when:
        - ceph_current_status['services'] is defined
        - ceph_current_status['services']['rgw'] is defined

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

- name: set default osd_pool_default_crush_rule fact
  set_fact:
    osd_pool_default_crush_rule: "{{ ceph_osd_pool_default_crush_rule }}"

- name: get default crush rule value from ceph configuration
  block:
    - &read-osd-pool-default-crush-rule
      name: read osd pool default crush rule
      command: grep 'osd pool default crush rule' /etc/ceph/{{ cluster }}.conf
      register: crush_rule_variable
      changed_when: false
      check_mode: no
      failed_when: crush_rule_variable.rc not in (0, 1)
    - &set-osd-pool-default-crush-rule-fact
      name: set osd_pool_default_crush_rule fact
      set_fact:
        osd_pool_default_crush_rule: "{{ crush_rule_variable.stdout.split(' = ')[1] }}"
      when: crush_rule_variable.rc == 0
  when: ceph_conf.stat.exists | bool

- name: get default crush rule value from running monitor ceph configuration
  block:
    - <<: *read-osd-pool-default-crush-rule
      delegate_to: "{{ running_mon }}"
    - *set-osd-pool-default-crush-rule-fact
  when:
    - running_mon is defined
    - not ceph_conf.stat.exists | bool

- name: import_tasks set_monitor_address.yml
  import_tasks: set_monitor_address.yml
  when: groups.get(mon_group_name, []) | length > 0

- name: import_tasks set_radosgw_address.yml
  import_tasks: set_radosgw_address.yml
  when: inventory_hostname in groups.get(rgw_group_name, [])

- name: set_fact use_new_ceph_iscsi package or old ceph-iscsi-config/cli
  set_fact:
    use_new_ceph_iscsi: "{{ (gateway_ip_list  == '0.0.0.0' and gateway_iqn | length == 0 and client_connections | length == 0 and rbd_devices | length == 0) | bool | ternary(true, false) }}"
  when: iscsi_gw_group_name in group_names

- name: set_fact ceph_run_cmd
  set_fact:
    ceph_run_cmd: "{{ container_binary + ' run --rm --net=host -v /etc/ceph:/etc/ceph:z -v /var/lib/ceph/:/var/lib/ceph/:z -v /var/log/ceph/:/var/log/ceph/:z --entrypoint=ceph ' + ceph_docker_registry + '/' + ceph_docker_image + ':' + ceph_docker_image_tag if containerized_deployment | bool else 'ceph' }}"
  delegate_to: "{{ item }}"
  delegate_facts: True
  run_once: True
  with_items:
    - "{{ groups[mon_group_name] if groups[mon_group_name] | default([]) | length > 0 else [] }}"
    - "{{ groups[mds_group_name] if groups[mds_group_name] | default([]) | length > 0 else [] }}"
    - "{{ groups[client_group_name] if groups[client_group_name] | default([]) | length > 0 else [] }}"

- name: set_fact ceph_admin_command
  set_fact:
    ceph_admin_command: "{{ hostvars[item]['ceph_run_cmd'] }} -n client.admin -k /etc/ceph/{{ cluster }}.client.admin.keyring"
  delegate_to: "{{ item }}"
  delegate_facts: True
  run_once: True
  with_items:
    - "{{ groups[mon_group_name] if groups[mon_group_name] | default([]) | length > 0 else [] }}"
    - "{{ groups[mds_group_name] if groups[mds_group_name] | default([]) | length > 0 else [] }}"
    - "{{ groups[client_group_name] if groups[client_group_name] | default([]) | length > 0 else [] }}"