ceph-ansible/roles/ceph-defaults/tasks/check_socket.yml

---
# These checks are used to avoid running handlers at initial deployment.
- name: check for a ceph socket
  shell: |
    {{ docker_exec_cmd }} bash -c 'stat {{ rbd_client_admin_socket_path }}/*.asok > /dev/null 2>&1'
  changed_when: false
  failed_when: false
  always_run: true
  register: socket

- name: check for a ceph socket in containerized deployment (osds)
  shell: |
    docker exec ceph-osd-"{{ ansible_hostname }}"-"{{ item | replace('/', '') }}" bash -c 'stat /var/run/ceph/*.asok > /dev/null 2>&1'
  changed_when: false
  failed_when: false
  always_run: true
  register: socket_osd_container
  with_items: "{{ devices }}"
  when:
    - containerized_deployment
    - inventory_hostname in groups.get(osd_group_name, [])