ceph-ansible/roles/ceph-docker-common/tasks/create_configs.yml

---
# only create fetch directory when:
# we are not populating kv_store with default ceph.conf AND host is a mon
# OR
# we are not population kv_store with default ceph.conf AND there at least 1 nfs in nfs group AND host is the first nfs
- 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)
    - (not mon_containerized_default_ceph_conf_with_kv and
        (inventory_hostname in groups.get(mon_group_name, []))) or
      (not mon_containerized_default_ceph_conf_with_kv and
        ((groups.get(nfs_group_name, []) | length > 0)
          and (inventory_hostname == groups.get(nfs_group_name, [])[0])))

- name: generate cluster uuid
  local_action: 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

- name: read cluster uuid if it already exists
  local_action: command cat {{ fetch_directory }}/ceph_cluster_uuid.conf
    removes="{{ fetch_directory }}/ceph_cluster_uuid.conf"
  changed_when: false
  register: cluster_uuid
  always_run: true
  become: false
  when: generate_fsid

- name: "generate {{ cluster }}.conf configuration file"
  action: config_template
  args:
    src: "{{ playbook_dir }}/roles/ceph-common/templates/ceph.conf.j2"
    dest: "{{ ceph_conf_key_directory }}/{{ cluster }}.conf"
    owner: "root"
    group: "root"
    mode: "0644"
    config_overrides: "{{ ceph_conf_overrides }}"
    config_type: ini
  when:
    - (not mon_containerized_default_ceph_conf_with_kv and
        (inventory_hostname in groups.get(mon_group_name, []))) or
      (not mon_containerized_default_ceph_conf_with_kv and
        ((groups.get(nfs_group_name, []) | length > 0)
          and (inventory_hostname == groups.get(nfs_group_name, [])[0])))

- name: set fsid fact when generate_fsid = true
  set_fact:
    fsid: "{{ cluster_uuid.stdout }}"
  when: generate_fsid