install a specific version of nodejs

nodejs-install.yml

---
- name: nodejs install block
  block:
    - name: Check for nodejs
      stat:
        path: "{{ node_path }}/node"
      register: node_check

    - name: Install nodejs
      unarchive:
        src: "https://nodejs.org/dist/v{{ node_version }}/node-v{{ node_version }}-linux-x64.tar.xz"
        dest: "{{ node_install_location }}"
        remote_src: yes
        owner: root
        group: root
      when: node_check.stat.exists == false

    - name: Install NPM modules (global)
      npm:
        name: "{{ item }}"
        global: yes
        state: present
      with_items:
        - knex-migrator
        - ghost-cli

    - name: Adding node_path to PATH
      template:
        src: nodejs.sh.j2
        dest: /etc/profile.d/nodejs.sh
        owner: root
        group: root
        mode: 0644

    - name: Adjusting secure_path in sudoers
      lineinfile:
        path: /etc/sudoers
        owner: root
        group: root
        mode: 0440
        state: present
        regexp: 'secure_path'
        line: 'Defaults        secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:{{ node_path }}"'
  when: inventory_dir | basename in ['dev', 'packer']
  environment:
    PATH: "{{ ansible_env.PATH }}:{{ node_path }}"

nodejs.sh.j2

PATH=${PATH}:{{ node_path }}

vars.yml

---
node_version: "8.9.4"
node_install_location: /usr/local
node_path: "{{ node_install_location }}/node-v{{ node_version }}-linux-x64/bin"