ansible/roles/common/tasks/postfix.yml

# This setup the letsencrypt stuff we have 
---
- name: Set up post-deploy LE stuff
  copy:
    src: ../files/etc/letsencrypt/renewal-hooks/update-postfix
    dest: /etc/letsencrypt/renewal-hooks/update-postfix
    owner: root
    group: root
    mode: 0644