- name: Install Haproxy
  apt:
    name: haproxy
  become: true
  become_user: root

- name: Haproxy config
  template:
    src: files/haproxy.cfg
    dest: /etc/haproxy/haproxy.cfg
    validate: /usr/sbin/haproxy -c -- %s
    backup: yes
  become: true
  become_user: root
  register: haproxy_config

- name: Restart Haproxy
  service:
    name: haproxy
    state: restarted
  become: true
  become_user: root
  when: haproxy_config.changed