Ansible Playbook - Postfix for SES Delivery

ansibleSetupPostfixSES.yml

#
# According to AWS Docs - http://docs.aws.amazon.com/ses/latest/DeveloperGuide/postfix.html
#
# Rewrites all sender addresses to a single canonical ses verified address.
#
# Expects a vars files at ../vars/PostfixSES-vars.yml with the following variables:
#   - ses_host: email-smtp.us-west-x.amazonaws.com
#   - ses_port: 587
#   - ses_username: ses-smtp-username
#   - ses_password: ses-smtp-password
#   - postfix_canonical_name: ses-verified@email.address
#   - postfix_hostname: postfix.host.name
#
# Tested on Ubuntu 14.04
#
---
- hosts: '{{ host }}'
  user: '{{ user }}'
  sudo: True
  gather_facts: yes

  tasks:
  - include_vars: ../vars/PostfixSES-vars.yml

  - name: Install Postfix and libsasl2-mod
    apt: >
      name={{ item }}
      state=latest
      update_cache=yes
    with_items:
      - postfix
      - heirloom-mailx
    tags:
      - install

  - name: Configure Postfix main.cf
    lineinfile: >
      backup=yes
      dest=/etc/postfix/main.cf
      regexp="^{{ item.variable }}\ ="
      line="{{ item.variable }} = {{ item.value }}"
      state=present
    with_items:
      - { variable: 'relayhost', value: "{{ ses_host }}:{{ ses_port }}" }
      - { variable: 'smtp_sasl_auth_enable', value: 'yes' }
      - { variable: 'smtp_sasl_security_options', value: 'noanonymous' }
      - { variable: 'smtp_sasl_password_maps', value: 'hash:/etc/postfix/sasl_passwd' }
      - { variable: 'smtp_use_tls', value: 'yes' }
      - { variable: 'smtp_tls_security_level', value: 'encrypt' }
      - { variable: 'smtp_tls_note_starttls_offer', value: 'yes' }
      - { variable: 'sender_canonical_maps', value: 'regexp:/etc/postfix/sender_canonical' }
      - { variable: 'myhostname', value: '{{ postfix_hostname }}' }
      - { variable: 'mydestination', value: '{{ postfix_hostname }}, localhost.localdomain, localhost' }
      - { variable: 'smtp_tls_CAfile', value: '/etc/ssl/certs/ca-certificates.crt' }
    tags:
      - config
    register: postfix_main_cf

  - name: Create /etc/postfix/sasl_passwd
    lineinfile: >
      backup=yes
      create=yes
      dest=/etc/postfix/sasl_passwd
      regexp="^{{ ses_host }}"
      line="{{ ses_host }}:{{ ses_port }} {{ ses_username }}:{{ ses_password }}"
      state=present
    tags:
      - config
    register: postfix_sasl_passwd

  - name: postmap hash:/etc/postfix/sasl_passwd
    command: postmap hash:/etc/postfix/sasl_passwd
    tags:
      - config
    when: postfix_sasl_passwd.changed

  - name: Change permissions on /etc/postfix/sasl_passwd.db
    command: chmod 0600 /etc/postfix/sasl_passwd*
    tags:
      - config
    when: postfix_sasl_passwd.changed

  - name: Create /etc/postfix/sender_canonical
    lineinfile: >
      backup=yes
      create=yes
      dest=/etc/postfix/sender_canonical
      regexp=".*{{postfix_canonical_name}}"
      line="/(.*?)@(.*)/ {{postfix_canonical_name}}"
      state=present
    tags:
      - config

  - name: Restart postfix
    service: >
      name=postfix
      state=restarted
    tags:
      - config
    when: postfix_sasl_passwd.changed or postfix_main_cf.changed