Since I've had to figure out how to do this twice now,
and the NodeSource instructions make this more confusing than it ought to be.
Make sure you replace node_6.x with the appropriate version from the
installation instructions
and xenial with the results of lsb_release -s -c.
- name: NodeSource package key
apt_key:
state: present
url: https://deb.nodesource.com/gpgkey/nodesource.gpg.key
- name: NodeSource repository
apt_repository:
repo: 'deb https://deb.nodesource.com/node_6.x xenial main'
- name: Install NodeJS
apt:
state: present
name: nodejs