Ansible: Use async task to work around unreachable Host while reloading networking configuration

async-network-reload.yml

---

- name: Reload networking (in-band)
  service:
    name: networking
    state: reloaded

- name: Reload networking (out-of-band)
  shell: ifreload --allow=mgmt
  async: 45
  poll: 0

- name: Wait for out-of-band network to start reload
  pause:
    seconds: 2

- name: Wait for out-of-band network to finish reload
  wait_for_connection:
    timeout: 30