iiab/roles/nodered/tasks/main.yml

- name: Set up Node.js 8.x apt sources (debuntu, but avoid ubuntu-18)
  shell: curl -sL https://deb.nodesource.com/setup_8.x | bash -
  args:
    warn: no
  when: internet_available and is_debuntu and not is_ubuntu_18 and nodered_install

- name: Install latest Node.js which includes /usr/bin/npm (debuntu, but avoid ubuntu-18)
  package:
    name: nodejs
    # name: nodejs=8.x
    state: latest
    # state: present
  when: internet_available and is_debuntu and not is_ubuntu_18 and nodered_install

# 2018-07-14: BOTH STEPS ABOVE TAKE TIME, but Raspbian (apt offers npm
# 1.4.21) & Debian 9 (apt offers no npm!) STILL NEED the above
# nodesource.com approach to get a version of npm that works with Sugarizer:
# https://github.com/iiab/iiab/issues/798#issuecomment-404324530
#
# MORE POSITIVELY: this nodesource.com approach (brings in npm 5.6.0 with
# nodejs 8.11.3 for now, to any OS) would also work on Ubuntu 18.04, and
# might even bring about a sane consistency across mainline OS's?
#
# BUT FOR NOW: Ubuntu 18.04's apt (approach below) brings in npm 3.5.2,
# which appears suffic "SO FAR"?  18.04's nodejs 8.10.0 is more reassuring!

# CRAZY IDEA: most versions of npm can upgrade themselves to the latest
# (6.2.0 for now) using command "npm install -g npm", if that helps us in
# future, e.g. TK's memory issue etc?  If so, be CAREFUL this puts npm
# in /usr/local/bin on Ubuntu 18.04 -- unlike Ubuntu 16.04 and Raspbian
# where it upgrades /usr/bin/npm in place:
# https://askubuntu.com/questions/1036278/npm-is-incorrect-version-on-latest-ubuntu-18-04-installation

- name: Install latest packages nodejs and npm (ubuntu-18 or not debuntu)
  package:
    name:
      - nodejs
      - npm
    state: latest
  when: internet_available and (is_ubuntu_18 or not is_debuntu) and nodered_install


- name: Install node-red packages globally.
  shell: npm install -g --unsafe-perm node-red node-red-admin node-red-dashboard
  when: nodered_install

- name: Create nodered usergroup
  group:
    name: nodered
    state: present
  when: nodered_install

- name: Add the user nodered and add to nodered group
  user:
    name: nodered
    group: nodered
  when: nodered_install

- name: Create /home/nodered/.node-red/ directory
  file:
    path: "/home/nodered/.node-red"
    state: directory
    owner: nodered
    group: nodered
    mode: 0775
  when: nodered_install

- name: Copy settings.js file with authentication
  template:
    backup: yes
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: nodered
    group: nodered
    mode: "{{ item.mode }}"
  with_items:
    - { src: 'settings.js.j2' , dest: '/home/nodered/.node-red/settings.js', mode: '0755' }
  when: nodered_install

- name: Create node-red systemd file
  template:
    backup: yes
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: root
    group: root
    mode: "{{ item.mode }}"
  with_items:
    - { src: 'node-red.service.j2' , dest: '/etc/systemd/system/node-red.service', mode: '0755' }
  when: nodered_install

- name: Enable node-red
  service:
    name: node-red
    enabled: yes
  when: nodered_enabled

- name: Start node-red
  service:
    name: node-red
    state: started
  when: nodered_enabled