Remove the sudo and use become in the role overall.

handlers/main.yml

@@ -1,3 +1,2 @@
 - name: restart nodejs app
   supervisorctl: name={{ nodejs_app_service_name }} state=restarted config=/etc/supervisor/supervisord.conf
-  sudo: yes

tasks/main.yml

@@ -8,5 +8,4 @@
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header Host $http_host;
         proxy_pass http://127.0.0.1:{{ nodejs_app_port }};
-  sudo: yes
   notify: restart nginx