ceph-ansible/roles/ceph-mds/tasks/pre_requisite.yml

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

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

- name: create bootstrap-mds directory
  file:
    path: /var/lib/ceph/bootstrap-mds/
    state: directory
    owner: "{{ dir_owner }}"
    group: "{{ dir_group }}"
    mode: "{{ dir_mode }}"

- name: copy mds bootstrap key
  copy:
    src: "{{ fetch_directory }}/{{ fsid }}{{ item.name }}"
    dest: "{{ item.name }}"
    owner: "{{ key_owner }}"
    group: "{{ key_group }}"
    mode: "{{ key_mode }}"
  with_items:
    - { name: "/var/lib/ceph/bootstrap-mds/{{ cluster }}.keyring", copy_key: true }
    - { name: "/etc/ceph/{{ cluster }}.client.admin.keyring", copy_key: "{{ copy_admin_key }}" }
  when:
    cephx and
    item.copy_key|bool

- name: create mds directory
  file:
    path: /var/lib/ceph/mds/{{ cluster }}-{{ mds_name }}
    state: directory
    owner: "{{ dir_owner }}"
    group: "{{ dir_group }}"
    mode: "{{ dir_mode }}"

- name: create mds keyring
  command: ceph --cluster {{ cluster }} --name client.bootstrap-mds --keyring /var/lib/ceph/bootstrap-mds/{{ cluster }}.keyring auth get-or-create mds.{{ mds_name }} osd 'allow rwx' mds 'allow' mon 'allow profile mds' -o /var/lib/ceph/mds/{{ cluster }}-{{ mds_name }}/keyring
  args:
    creates: /var/lib/ceph/mds/{{ cluster }}-{{ mds_name }}/keyring
  changed_when: false
  when: cephx

- name: set mds key permissions
  file:
    path: /var/lib/ceph/mds/{{ cluster }}-{{ mds_name }}/keyring
    mode: "{{ key_mode }}"
    owner: "{{ key_owner }}"
    group: "{{ key_group }}"
  when: cephx

- name: activate metadata server with upstart
  file:
    path: /var/lib/ceph/mds/{{ cluster }}-{{ mds_name }}/{{ item }}
    state: touch
    owner: "{{ activate_file_owner }}"
    group: "{{ activate_file_group }}"
    mode: "{{ activate_file_mode }}"
  with_items:
    - done
    - upstart
  changed_when: false
  when: ansible_distribution == "Ubuntu"

- name: activate metadata server with sysvinit
  file:
    path: /var/lib/ceph/mds/{{ cluster }}-{{ mds_name }}/{{ item }}
    state: touch
    owner: "{{ activate_file_owner }}"
    group: "{{ activate_file_group }}"
    mode: "{{ activate_file_mode }}"
  with_items:
    - done
    - sysvinit
  changed_when: false
  when: ansible_distribution != "Ubuntu"

- name: enable systemd unit file for mds instance (for or after infernalis)
  file:
    src: /usr/lib/systemd/system/ceph-mds@.service
    dest: /etc/systemd/system/multi-user.target.wants/ceph-mds@{{ mds_name }}.service
    state: link
  changed_when: false
  failed_when: false
  when:
    ansible_distribution != "Ubuntu" and
    is_ceph_infernalis

- name: start and add that the metadata service to the init sequence (ubuntu)
  command: initctl emit ceph-mds cluster={{ cluster }} id={{ mds_name }}
  changed_when: false
  failed_when: false
  when: ansible_distribution == "Ubuntu"

- name: start and add that the metadata service to the init sequence (before infernalis)
  service:
    name: ceph
    state: started
    enabled: yes
    args: mds.{{ mds_name }}
  changed_when: false
  when:
    ansible_distribution != "Ubuntu" and
    not is_ceph_infernalis

- name: start and add that the metadata service to the init sequence (for or after infernalis)
  service:
    name: ceph-mds@{{ mds_name }}
    state: started
    enabled: yes
  changed_when: false
  when:
    ansible_distribution != "Ubuntu" and
    is_ceph_infernalis