database:
  hosts:
      db_server_1: 192.168.11.20
      ansible_connection: ssh
      ansible_user: vagrant
      ansible_ssh_password: vagrant

loadbalancer:
  hosts:
      lb_server_1: 192.168.11.30
      ansible_connection: ssh
      ansible_user: vagrant
      ansible_ssh_password: vagrant

webserver:
  hosts:
      ws_server_1: 192.168.11.40
      ansible_connection: ssh
      ansible_user: vagrant
      ansible_ssh_password: vagrant