iiab/roles/www_front_end/tasks/main.yml

# Role "www_back_end" runs earlier, likely in 3-BASE-SERVER.
# Role "www_front_end" runs here, probably in 4-SERVER-OPTIONS.
#
# (Don't take either name too literally!)


# HOMEPAGE

- name: Create dir {{ doc_root }}{{ iiab_home_url }} just in case variable iiab_home_url was customized.  (Standard path {{doc_root}}/home was created earlier.)
  file:
    state: directory
    path: "{{ doc_root }}{{ iiab_home_url }}"    # /library/www/html/home
    owner: "{{ apache_user }}"
    group: "{{ apache_user }}"
    mode: '0755'

# Used to be run by httpd/tasks/install.yml
- name: "IN CASE NGINX IS DISABLED: Enable IIAB pages via Apache (e.g. on port 80) if apache_install"
  include_tasks: roles/httpd/tasks/homepage.yml
  when: apache_install | bool

# Used to be run by nginx/tasks/install.yml
- name: Enable IIAB pages via NGINX (e.g. on port 80) if nginx_install
  include_tasks: roles/nginx/tasks/homepage.yml
  when: nginx_install | bool


# 'Is a "Rapid Power Off" button possible for low-electricity environments?'
# gives more details here: http://FAQ.IIAB.IO

# 2020-02-12: DOES THE FLAG BELOW (apache_allow_sudo) WORK WITH NGINX TOO ?
# COMPARE nginx_high_php_limits @ roles/www_back_end/tasks/main.yml

- name: Give {{ apache_user }} (per variable apache_user) permission to poweroff, installing /etc/sudoers.d/020_apache_poweroff from template
  template:
    src: 020_apache_poweroff.j2
    dest: /etc/sudoers.d/020_apache_poweroff
    mode: '0755'
  when: apache_allow_sudo | bool

- name: Remove {{ apache_user }} (per variable apache_user) permission to poweroff, removing /etc/sudoers.d/020_apache_poweroff
  file:
    path: /etc/sudoers.d/020_apache_poweroff
    state: absent
  when: not apache_allow_sudo


- name: Run /usr/bin/iiab-refresh-wiki-docs (scraper script) to create http://box/info offline documentation.  (This script was installed in Stage 3 = roles/3-base-server/tasks/main.yml, which ran roles/www_back_end/tasks/main.yml)
  command: /usr/bin/iiab-refresh-wiki-docs
  when: internet_available and not nodocs


- name: (Re)Start '{{ apache_service }}' systemd service, if apache_enabled
  systemd:
    name: "{{ apache_service }}"    # apache2 on debuntu
    state: restarted
  when: apache_enabled | bool

- name: (Re)Start 'nginx' systemd service, if nginx_enabled
  systemd:
    name: nginx
    state: restarted
  when: nginx_enabled | bool


# RECORD www_front_end AS INSTALLED

- name: "Set 'www_front_end_installed: True'"
  set_fact:
    www_front_end_installed: True

- name: "Add 'www_front_end_installed: True' to {{ iiab_state_file }}"
  lineinfile:
    path: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
    regexp: '^www_front_end_installed'
    line: 'www_front_end_installed: True'