iiab/roles/nodered/tasks/enable.yml

- name: Enable & (Re)start 'nodered' systemd service (if nodered_enabled)
  systemd:
    daemon_reload: yes
    name: nodered
    enabled: yes
    state: restarted
  when: nodered_enabled

- name: Disable & Stop 'nodered' systemd service (if not nodered_enabled)
  systemd:
    daemon_reload: yes
    name: nodered
    enabled: no
    state: stopped
  when: not nodered_enabled

- name: Create symlink nodered.conf from sites-enabled to sites-available, for short URL http://box/nodered (if nodered_enabled)
  file:
    src: /etc/apache2/sites-available/nodered.conf
    dest: /etc/apache2/sites-enabled/nodered.conf
    owner: root
    group: root
    state: link
  when: nodered_enabled

- name: Remove symlink /etc/apache2/sites-enabled/nodered.conf (if not nodered_enabled)
  file:
    path: /etc/apache2/sites-enabled/nodered.conf
    state: absent
  when: not nodered_enabled

- name: Install NodeRed's nginx conf.d file from template
  template:
    src: nodered-nginx.conf.j2
    dest: "{{ nginx_config_dir }}/nodered-nginx.conf"
    owner: root
    group: root
    mode: 0666
  when: nodered_enabled and nginx_enabled

- name: Restart Apache service ({{ apache_service }}) to enable/disable http://box/nodered (not just http://box:{{ nodered_port }}/nodered)
  systemd:
    name: "{{ apache_service }}"    # httpd or apache2
    daemon-reload: yes
    state: restarted
  when: apache_enabled

- name: Restart nginx to enable/disable http://box/nodered (not just http://box:{{ nodered_port }}/nodered)
  systemd:
    name: nginx
    state: restarted
    daemon-reload: yes
  when: nginx_enabled

- name: Add 'nodered' variable values to {{ iiab_ini_file }}
  ini_file:
    path: "{{ iiab_ini_file }}"
    section: nodered
    option: "{{ item.option }}"
    value: "{{ item.value | string }}"
  with_items:
    - option: name
      value: Node-RED
    - option: description
      value: '"Node-RED is a flow-based development tool for visual programming developed originally by IBM for wiring together hardware devices, APIs and online services as part of the Internet of Things.  Node-RED provides a web browser-based flow editor, which can be used to create JavaScript functions."'
    - option: nodered_install
      value: "{{ nodered_install }}"
    - option: nodered_enabled
      value: "{{ nodered_enabled }}"