Adding option for authentication

roles/haproxy/defaults/main.yml

@@ -8,6 +8,7 @@ haproxy_config_file: "example.haproxy.cfg.j2"
 haproxy_shared_ip: ""
 haproxy_shared_ip_subnet: "/24"
 haproxy_shared_virtual_router_id: 25
+haproxy_shared_password: ""
 haproxy_keepalived_process_weight: 10
 haproxy_listen_ports: 
   - port : 22

roles/haproxy/templates/keepalived.conf.j2

@@ -14,6 +14,13 @@ vrrp_instance VI_1 {
     virtual_router_id {{ haproxy_shared_virtual_router_id }}
     priority {{ haproxy_shared_priority }}
 
+{% if haproxy_shared_password != '' %}
+    authentication {
+        auth_type PASS
+        auth_pass {{ haproxy_shared_password }}
+    }
+
+{% endif %}
     virtual_ipaddress {
         {{ haproxy_shared_ip }}{{ haproxy_shared_ip_subnet }} dev {{ haproxy_bind_adapter }}
     }