playbook.yml

---

- hosts: proxy
  vars:
    - s_port: 80
  tasks:

    - name: installing HaProxy...
      package:
        name: haproxy
        state: present

    - name: copying the configuration file...
      template:
        src: haproxy.j2
        dest: /etc/haproxy/haproxy.cfg
      notify: restarting haproxy... 

    - name: starting the service...
      service:
        name: haproxy
        state: started
        enabled: yes
      register: started

    - name: setting up facts...
      set_fact:
        condition_restart: "{{ started.changed==False }}"

  handlers:
    - name: restarting haproxy...
      service: 
        name: haproxy
        state: restarted
      when: condition_restart

- hosts: server
  tasks:
    - name: installing httpd...
      package:
        name: httpd
        state: present

    - name: starting service...
      service:
        name: httpd
        state: started
        enabled: yes

    - name: copying content...
      template:
        src: index.j2
        dest: /var/www/html/index.html