---

- name: Prepare
  hosts: all
  gather_facts: false
  tasks:
    - name: Install python for Ansible
      raw: test -e /usr/bin/python || (apt -y update && apt install -y python-minimal)
      become: true
      changed_when: false

- hosts: all
  become: true
  tasks:

    - name: Update all caches to avoid errors due to missing remote archives
      apt:
        update_cache: true
      changed_when: false

- hosts: all
  become: true
  tasks:

    - name: Set-up the hosts file
      lineinfile:
        path: /etc/hosts
        regexp: "^{{ item.key }}"
        line: "{{ item.key }} {{ item.value }}"
        owner: root
        group: root
        mode: 0644
        state: present
      with_dict:
        10.31.127.10: "mail-server domain1"
        10.31.127.11: "client1"
        10.31.127.30: "parameters-mandatory-stretch64"
        10.31.127.31: "parameters-optional-stretch64"
        10.31.127.32: "parameters-no-incoming-stretch64"

- hosts: clients
  become: true
  tasks:

    - name: Install SWAKS for testing SMTP capability
      apt:
        name: swaks
        state: present

    - name: Install tool for testing TCP connectivity
      apt:
        name: hping3
        state: present

    - name: Deploy CA certificate
      copy:
        src: tests/data/x509/ca.cert.pem
        dest: /usr/local/share/ca-certificates/testca.crt
        owner: root
        group: root
        mode: 0644
      notify:
        - Update CA certificate cache

  handlers:

    - name: Update CA certificate cache
      command: /usr/sbin/update-ca-certificates --fresh

- hosts: mail-servers
  become: true
  tasks:

    - name: Deploy CA certificate
      copy:
        src: tests/data/x509/ca.cert.pem
        dest: /usr/local/share/ca-certificates/testca.crt
        owner: root
        group: root
        mode: 0644
      notify:
        - Update CA certificate cache

    - name: Deploy SMTP private key and certificate
      copy:
        src: "tests/data/x509/{{ item }}"
        dest: "/etc/ssl/{{ item }}"
        owner: root
        group: root
        mode: 0600
      with_items:
        - mail-server_smtp.cert.pem
        - mail-server_smtp.key.pem

    - name: Install Postfix
      apt:
        name: "postfix"
        state: present

    - name: Purge Exim configuration
      apt:
        name: "exim4*"
        state: absent
        purge: true

    - name: Deploy Postfix configuration
      copy:
        src: tests/data/main.cf
        dest: /etc/postfix/main.cf
        owner: root
        group: root
        mode: 0644
      notify:
        - Restart Postfix

    - name: Install tool for testing TCP connectivity
      apt:
        name: hping3
        state: present

    - name: Install SWAKS for testing SMTP capability
      apt:
        name: swaks
        state: present

    - name: Set-up port forwarding
      command: "iptables -t nat -A PREROUTING -p tcp -m tcp --dport 27 -j REDIRECT --to-ports 25"
      changed_when: false

  handlers:

    - name: Update CA certificate cache
      command: /usr/sbin/update-ca-certificates --fresh

    - name: Restart Postfix
      service:
        name: postfix
        state: restarted

- hosts: parameters-optional
  become: true
  tasks:

    - name: Create additional group for testing local aliases
      group:
        name: testuser

    - name: Create additional user for testing local aliases
      user:
        name: testuser
        group: testuser