ceph-ansible/infrastructure-playbooks/add-mon.yml

---
# This playbook is used to add a new MON to
# an existing cluster. It can run from any machine. Even if the fetch
# directory is not present it will be created.
#
# Ensure that all monitors are present in the mons
# group in your inventory so that the ceph configuration file
# is created correctly for the new OSD(s).
- hosts: mons
  gather_facts: false
  vars:
    delegate_facts_host: true
  become: true
  pre_tasks:
    - name: gather facts
      setup:
      when: not delegate_facts_host | bool or inventory_hostname in groups.get(client_group_name, [])
    - import_role:
        name: ceph-defaults

    - name: gather and delegate facts
      setup:
      delegate_to: "{{ item }}"
      delegate_facts: true
      with_items: "{{ groups[mon_group_name] }}"
      run_once: true
      when: delegate_facts_host | bool
  tasks:
    - import_role:
        name: ceph-facts
    - import_role:
        name: ceph-validate
    - import_role:
        name: ceph-infra
    - import_role:
        name: ceph-handler
    - import_role:
        name: ceph-common
      when: not containerized_deployment | bool
    - import_role:
        name: ceph-container-engine
      when: containerized_deployment | bool
    - import_role:
        name: ceph-container-common
      when: containerized_deployment | bool

- hosts: mons
  gather_facts: false
  become: true
  tasks:
    - import_role:
        name: ceph-defaults
    - import_role:
        name: ceph-facts
    - import_role:
        name: ceph-handler
    - import_role:
        name: ceph-config
    - import_role:
        name: ceph-mon

# update config files on OSD nodes
- hosts: osds
  gather_facts: true
  become: true
  tasks:
    - import_role:
        name: ceph-defaults
    - import_role:
        name: ceph-facts
    - import_role:
        name: ceph-handler
    - import_role:
        name: ceph-config