---
- name: update apt cache
  apt: update_cache=yes
  when: ansible_os_family == "Debian"

- name: Haproxy install
  package:
    name: haproxy
    state: latest

- name: Enable haproxy service
  replace:
    dest: /etc/default/haproxy
    regexp: "ENABLED=0"
    replace: "ENABLED=1"
    backup: no
  when: ansible_distribution == 'Ubuntu'

- name: Modify haproxy configuration
  blockinfile:
    dest: /etc/haproxy/haproxy.cfg
    insertafter: EOF
    block: |
      frontend http-in
          bind *:80
          default_backend backend_servers
          option forwardfor

      backend backend_servers
          balance     roundrobin

- name: Add web servers to the haproxy
  lineinfile:
    dest: /etc/haproxy/haproxy.cfg
    line: "    server ws{{ hostvars[item].inter_ip }} {{ hostvars[item].inter_ip }}:80 check"
  with_flattened:
    - "{{ groups['webservers'] }}"
  no_log: True

- service: name=haproxy state=restarted enabled=yes