ansible/roles/postfix/tasks/main.yml

---
- name: Install Postfix
  package:
    name: postfix
    state: present
  notify:
    - Restart Postfix

- name: Create /usr/local/etc/mail
  file:
    path: /usr/local/etc/mail
    state: directory
    owner: root
    group: wheel
    mode: 0755

- name: Install Postfix mailer.conf
  copy:
    dest: /usr/local/etc/mail/mailer.conf
    src: /usr/local/share/postfix/mailer.conf.postfix
    remote_src: yes
    owner: root
    group: wheel
    mode: 0644

- name: Disable sendmail
  sysrc:
    name: sendmail_enable
    value: NONE

- name: Make sure sendmail is stopped
  service:
    name: sendmail
    state: stopped

- name: Disable sendmail periodic tasks
  lineinfile:
    path: /etc/periodic.conf
    owner: root
    group: wheel
    mode: 0444
    regexp: '^{{ item }}='
    line: '{{ item }}="NO"'
  with_items: '{{ sendmail_periodic }}'

- name: Add /var/log/postfix to fstab
  mount:
    path: /var/log/postfix
    src: tmpfs
    fstype: tmpfs
    opts: 'rw,size={{ postfix_log_size }},mode={{ postfix_log_mode }},uid={{ postfix_log_uid }},gid={{ postfix_log_gid }},late'
    state: mounted

- name: Create Postfix service directories
  file:
    path: '/etc/s6-rc/service/{{ item }}'
    state: directory
    owner: root
    group: wheel
    mode: 0755
  with_items: '{{ postfix_service_dirs }}'

- name: Generate Postfix service scripts
  template:
    dest: '/etc/s6-rc/service/{{ item }}'
    src: '{{ item }}.j2'
    mode: 0555
    owner: root
    group: wheel
  with_items: '{{ postfix_service_scripts }}'
  notify:
    - Reload s6-rc
    - Restart Postfix

- name: Generate Postfix service configuration
  copy:
    dest: '/etc/s6-rc/service/{{ item.name }}'
    content: '{{ item.content }}'
    mode: 0444
    owner: root
    group: wheel
  loop_control:
    label: '{{ item.name }} = {{ item.content }}'
  notify:
    - Reload s6-rc
    - Restart Postfix
  with_items: '{{ postfix_service_config }}'

- name: Generate Postfix maps
  template:
    dest: '/usr/local/etc/postfix/{{ item.name }}'
    src: '{{ item.name }}.j2'
    mode: 0444
    owner: root
    group: wheel
  with_items: '{{ postfix_maps }}'
  notify:
    - Rebuild Postfix maps
    - Reload Postfix

- name: Configure Postfix
  postconf:
    name: '{{ item.name }}'
    value: '{{ item.value | default(omit) }}'
    state: '{{ item.state | default(omit) }}'
  with_items: '{{ postfix_config }}'
  notify:
    - Reload Postfix

- name: Configure Postfix services
  lineinfile:
    path: /usr/local/etc/postfix/master.cf
    regexp: '^{{ item.name }} +{{ item.type }}'
    value: '{{ item.value }}'
  with_items: '{{ postfix_services }}'
  notify:
    - Restart Postfix

- name: Configure per service overrides
  postconf_master:
    name: '{{ item.name }}'
    value: '{{ item.value | default(omit) }}'
    state: '{{ item.state | default(omit) }}'
  with_items: '{{ postfix_params }}'
  notify:
    - Restart Postfix

- name: Flush handlers
  meta: flush_handlers

- name: Start Postfix
  command: fdmove -c 2 1 s6-rc -u -v 2 change postfix
  register: change
  changed_when: change.stdout | length > 0

- name: Enable Postfix
  lineinfile:
    path: /etc/s6-rc/service/enabled/contents
    regexp: "^postfix$"
    line: "postfix"
  notify:
    - Reload s6-rc

- name: Flush handlers (again)
  meta: flush_handlers