---
- name: 'Add Node.js PPA'
  tags: 'nodejs'
  become: 'yes'
  become_method: 'sudo'
  shell: "curl --silent --location https://deb.nodesource.com/setup_{{ node_version }}.x | bash -"

- name: Install nodejs {{ node_version }}
  package:
    name: nodejs
    state: present
...