sovereign/roles/mailserver/tasks/postfix.yml

---
# Installs and configures the Postfix SMTP server.

- name: Install Postfix and related packages
  apt:
    name: "{{ packages }}"
    state: present
  vars:
    packages:
    - libsasl2-modules
    - postfix
    - postfix-pcre
    - postfix-pgsql
    - postgrey
    - python-psycopg2
    - sasl2-bin
  tags:
    - dependencies

- name: Create database user for mail server
  postgresql_user:
    login_host=localhost
    login_user={{ db_admin_username }}
    login_password="{{ db_admin_password }}"
    name={{ mail_db_username }}
    password="{{ mail_db_password }}"
    encrypted=yes
    state=present
  notify: import sql postfix

- name: Create database for mail server
  postgresql_db:
    login_host=localhost
    login_user={{ db_admin_username }}
    login_password="{{ db_admin_password }}"
    name={{ mail_db_database }}
    state=present
    owner={{ mail_db_username }}
  notify: import sql postfix

- name: Copy import.sql
  template:
    src=mailserver.sql.j2
    dest=/etc/postfix/import.sql
    owner=root
    group=root
    mode=0600
  notify: import sql postfix

- name: Create postfix maps directory
  file:
    path=/etc/postfix/maps
    state=directory
    owner=root
    group=root
  when: mail_header_privacy == 1

- name: Copy smtp_header_checks.pcre
  copy:
    src=etc_postfix_maps_smtp_header_checks.pcre
    dest=/etc/postfix/maps/smtp_header_checks.pcre
    owner=root
    group=root
  when: mail_header_privacy == 1

- name: Copy main.cf
  template:
    src=etc_postfix_main.cf.j2
    dest=/etc/postfix/main.cf
    owner=root
    group=root
  notify: restart postfix

- name: Copy master.cf
  copy:
    src=etc_postfix_master.cf
    dest=/etc/postfix/master.cf
    owner=root
    group=root
  notify: restart postfix

- name: Copy additional postfix configuration files
  template:
    src=etc_postfix_{{ item }}.j2
    dest=/etc/postfix/{{ item }}
    owner=root
    group=root
  with_items:
    - pgsql-virtual-alias-maps.cf
    - pgsql-virtual-mailbox-domains.cf
    - pgsql-virtual-mailbox-maps.cf
  notify: restart postfix

- name: Set firewall rules for postfix
  ufw: rule=allow port={{ item }} proto=tcp
  with_items:
    - smtp
    - ssmtp
    - submission
  tags: ufw