---
- name: "determine if certificate for {{ item.domains | join(', ') }}" 
  stat:
    path: "/etc/letsencrypt/live/{{ item.domains | first }}/cert.pem"
  register: st

- name: "request certificate for {{ item.domains | join(', ') }}"
  command: "[[ ! -e certbot certonly --webroot -w {{ certbot_challenge_webroot_path }} --agree-tos --noninteractive --email {{ item.email }} -d {{ item.domains | join(',') }}"
  when: not st.stat.exists