ansible-role-common/tasks/communication.yml

---
- name: Apply postfix configuration
  lineinfile:
    dest: "{{item.dest}}"
    regexp: "{{item.regexp}}"
    line: "{{item.line}}"
    insertafter: EOF
  notify: Restart Postfix
  when: "'SMTP0' not in inventory_hostname"
  with_items:
    - { dest: /etc/postfix/main.cf,
        regexp: "inet_protocols =",
        line: "inet_protocols = ipv4"
      }
    - { dest: /etc/postfix/main.cf,
        regexp: "inet_interfaces =",
        line: "inet_interfaces = all"
      }
    - { dest: /etc/postfix/main.cf,
        regexp: "relayhost =",
        line: "relayhost = {{ relayhost }}"
      }
    - {
        dest: /etc/postfix/main.cf,
        regexp: "smtp_randomize_addresses =",
        line: "smtp_randomize_addresses = no"
      }

- name: Ensure Postfix is Started/Enabled
  service:
    name: postfix
    state: started
    enabled: yes

- name: Ensure root forwarding address is set
  lineinfile:
    dest: ~/.forward
    regexp: "{{ root_email }}"
    line: "{{ root_email }}"
    create: yes