examen1/haproxy.yml

- name: haproxy role test
  become: true
  hosts: proxy
  vars:
    haproxy_frontend_mode: 'http'
    haproxy_front_end_port: 80
    haproxy_backend_mode: 'http'
    haproxy_backend_balance_method: 'roundrobin'
    haproxy_backend_servers:
      - name: node1
        address: serverb.lab.example.com:80
      - name: node2
        address: serverc.lab.example.com:80
  roles:
    - geerlingguy.haproxy
  tasks:
    - name: install firewalld
      yum:
        name: firewalld
        state: latest
    - name: start and enable firewalld
      service:
        name: firewalld
        state: started
        enabled: yes
    - name: open port 80
      firewalld:
        port: 80/tcp
        state: enabled
        immediate: yes
        permanent: yes