iiab/roles/nodered/tasks/settings.yml

- name: Ensure Linux group '{{ nodered_linux_user }}' exists
  group:
    name: "{{ nodered_linux_user }}"
    state: present

- name: Ensure nodered_linux_user '{{ nodered_linux_user }}' exists and is added to group '{{ nodered_linux_user }}'
  user:
    name: "{{ nodered_linux_user }}"
    group: "{{ nodered_linux_user }}"    # Primary group

- name: Ensure directory /home/{{ nodered_linux_user }}/.node-red/ exists
  file:
    path: /home/{{ nodered_linux_user }}/.node-red
    state: directory
    owner: "{{ nodered_linux_user }}"
    group: "{{ nodered_linux_user }}"
    mode: 0775


# - name: Install /home/{{ nodered_linux_user }}/.node-red/settings.js from template, with authentication
#   template:
#     backup: yes
#     src: settings.js.j2
#     dest: /home/{{ nodered_linux_user }}/.node-red/settings.js
#     owner: "{{ nodered_linux_user }}"
#     group: "{{ nodered_linux_user }}"
#     mode: 0755

# 2022-06-08 some alternative options arising from official installer
# https://github.com/node-red/linux-installers/blob/master/deb/update-nodejs-and-nodered
#
# 1) User {{ nodered_linux_user }} run 'node-red admin init' to create /home/{{ NODERED_LINUX_USER }}/.node-red/settings.js
# 2) Copy /usr/lib/node_modules/node-red/settings.js to /home/{{ NODERED_LINUX_USER }}/.node-red/settings.js
# 3) https://github.com/node-red/node-red/blob/master/packages/node_modules/node-red/settings.js
#
# Approach 1) (THEIR VERY INTERACTIVE SCRIPT) can't be automated like this:
#- name: Run 'node-red admin init' as user '{{ nodered_linux_user }}' to create /home/{{ nodered_linux_user }}/.node-red/settings.js
#  command: runuser -u {{ nodered_linux_user }} node-red admin init

- name: Copy /usr/lib/node_modules/node-red/settings.js to /home/{{ nodered_linux_user }}/.node-red/settings.js
  copy:
    remote_src: yes
    src: /usr/lib/node_modules/node-red/settings.js
    dest: /home/{{ nodered_linux_user }}/.node-red/settings.js
    owner: "{{ nodered_linux_user }}"
    group: "{{ nodered_linux_user }}"
    #mode: preserve    # Implied (and required) w/ remote_src, since Ansible 2.6


- name: Splice username and password into /home/{{ nodered_linux_user }}/.node-red/settings.js
  blockinfile:
    path: /home/{{ nodered_linux_user }}/.node-red/settings.js
    block: |2    # |n MEANS: Set the block's left edge n CHARACTERS TO THE RIGHT of *this line's* indentation -- where n is {1..9} -- instead of setting its left edge to the 1st non-blank line's indentation below
          adminAuth: {
              type: "credentials",
              users: [{
                  username: "{{ nodered_admin_user }}",
                  password: "{{ nodered_admin_pwd_hash }}",
                  permissions: "*"
              }]
          },
    marker: "// {mark} ANSIBLE MANAGED BLOCK"    # Surround block with comment lines: "// BEGIN ANSIBLE MANAGED BLOCK", "// END ANSIBLE MANAGED BLOCK"
    insertafter: '^module.exports = {$'
    #insertbefore: '^}$'

# 2022-06-09: IF ABOVE SNIPPET ALREADY EXISTS *UNCOMMENTED* IN settings.js,
# THESE WOULD BE NEEDED INSTEAD OF blockinfile:

# - name: Splice 'username: "{{ nodered_admin_user }}",' into /home/{{ nodered_linux_user }}/.node-red/settings.js
#   lineinfile:
#     path: /home/{{ nodered_linux_user }}/.node-red/settings.js
#     regexp: 'username:'
#     line: '            username: "{{ nodered_admin_user }}",'

# - name: Splice 'password: "{{ nodered_admin_pwd_hash }}",' into /home/{{ nodered_linux_user }}/.node-red/settings.js
#   lineinfile:
#     path: /home/{{ nodered_linux_user }}/.node-red/settings.js
#     regexp: 'password:'
#     line: '            password: "{{ nodered_admin_pwd_hash }}",'


# 2022-06-09: httpRoot might be going away?  Increasingly hidden from
# settings.js which used to say: "property can be used in place of
# 'httpAdminRoot' and 'httpNodeRoot', to apply the same root to both parts."
#
# "httpRoot sets the root url for both admin and node endpoints.
# It overrides the values set by httpAdminRoot and httpNodeRoot"
# https://nodered.org/docs/user-guide/runtime/configuration
#
# - name: Splice "httpRoot: '/{{ nodered_web_path }}'," into /home/{{ nodered_linux_user }}/.node-red/settings.js
#   lineinfile:
#     path: /home/{{ nodered_linux_user }}/.node-red/settings.js
#     regexp: '^\s*httpRoot:'
#     line: "    httpRoot: '/{{ nodered_web_path }}',"
#     insertafter: '^module.exports = {$'
#     #insertbefore: '^}$'

- name: 'Splice "httpNodeRoot: ''/{{ nodered_web_path }}''," into /home/{{ nodered_linux_user }}/.node-red/settings.js'
  lineinfile:
    path: /home/{{ nodered_linux_user }}/.node-red/settings.js
    regexp: '^\s*httpNodeRoot:'
    line: "    httpNodeRoot: '/{{ nodered_web_path }}',"
    insertafter: '^module.exports = {$'
    #insertbefore: '^}$'

- name: 'Splice "httpAdminRoot: ''/{{ nodered_web_path }}''," into /home/{{ nodered_linux_user }}/.node-red/settings.js'
  lineinfile:
    path: /home/{{ nodered_linux_user }}/.node-red/settings.js
    regexp: '^\s*httpAdminRoot:'
    line: "    httpAdminRoot: '/{{ nodered_web_path }}',"
    insertafter: '^module.exports = {$'
    #insertbefore: '^}$'