Beginning-Ansible-Concepts-and-Application/chapter10/roles/load_balancer/tasks/main.yml

---
- name: Install HAProxy
  apt:
    name: haproxy
    state: present
    cache_valid_time: 60

- name: Create configuration directory
  file:
    path: /etc/haproxy/fragments
    state: directory

- name: Copy original configuration file
  copy:
    src: /etc/haproxy/haproxy.cfg
    dest: /etc/haproxy/fragments/00_defaults.cfg
    remote_src: yes
    force: no

- name: Setup frontends
  template:
    src: frontends.cfg.j2
    dest: /etc/haproxy/fragments/40_frontends.cfg

- name: Build configuration from fragments
  assemble:
    src: /etc/haproxy/fragments/
    dest: /etc/haproxy/haproxy.cfg
    validate: "haproxy -f %s -c"
  notify: Reload HAProxy

- name: Firewall - Allow website connections
  ufw:
    rule: allow
    port: "{{ item }}"
  loop:
    - "{{ http_port }}"
    - "{{ https_port }}"
  tags:
    - firewall