iiab/roles/sugarizer/tasks/main.yml

# "How do i fail a task in Ansible if the variable contains a boolean value?
# I want to perform input validation for Ansible playbooks"
# https://stackoverflow.com/questions/46664127/how-do-i-fail-a-task-in-ansible-if-the-variable-contains-a-boolean-value-i-want/46667499#46667499

# We assume 0-init/tasks/validate_vars.yml has DEFINITELY been run, so no need
# to re-check whether vars are defined here.  As Ansible vars cannot be unset:
# https://serverfault.com/questions/856729/how-to-destroy-delete-unset-a-variable-value-in-ansible

- name: Assert that "sugarizer_install is sameas true" (boolean not string etc)
  assert:
    that: sugarizer_install is sameas true
    fail_msg: "PLEASE SET 'sugarizer_install: True' e.g. IN: /etc/iiab/local_vars.yml"
    quiet: yes

- name: Assert that "sugarizer_enabled | type_debug == 'bool'" (boolean not string etc)
  assert:
    that: sugarizer_enabled | type_debug == 'bool'
    fail_msg: "PLEASE GIVE VARIABLE 'sugarizer_enabled' A PROPER (UNQUOTED) ANSIBLE BOOLEAN VALUE e.g. IN: /etc/iiab/local_vars.yml"
    quiet: yes

- name: EXIT SUGARIZER PLAYBOOK, IF DEBIAN 10+ (where MongoDB doesn't exist)
  meta: end_play
  when: (is_debian and not is_raspbian) and (not is_debian_8) and (not is_debian_9)


- name: Install Sugarizer if 'sugarizer_installed' is not defined in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
  include_tasks: install.yml
  when: sugarizer_installed is undefined


# Auto-starts mongodb via the requires= line in unit file
- name: Enable & Restart 'sugarizer' systemd service, if sugarizer_enabled
  systemd:
    name: sugarizer
    daemon_reload: yes    # in case mongodb.service changed, etc
    enabled: yes
    state: restarted
  when: sugarizer_enabled | bool

# Stops sugarizer but not mongodb
- name: Disable & Stop 'sugarizer' systemd service, if not sugarizer_enabled
  systemd:
    name: sugarizer
    enabled: no
    state: stopped
  when: not sugarizer_enabled

# Stops mongodb (in the past this would've been called via meta/main.yml)
- name: Run mongodb/tasks/enable.yml to stop MongoDB, if not sugarizer_enabled
  include_tasks: roles/mongodb/tasks/enable.yml
  when: not sugarizer_enabled

- name: Enable/Disable/Restart Apache if primary
  include_tasks: apache.yml
  when: not nginx_enabled

- name: Enable/Disable/Restart NGINX if primary
  include_tasks: nginx.yml
  when: nginx_enabled | bool


- name: Add 'sugarizer' variable values to {{ iiab_ini_file }}
  ini_file:
    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
    section: sugarizer
    option: "{{ item.option }}"
    value: "{{ item.value | string }}"
  with_items:
    - option: name
      value: Sugarizer
    - option: description
      value: '"The Sugar Learning Platform began with the famous One Laptop Per Child project, written in Python.  Sugarizer is the new HTML/JavaScript implementation of Sugar, usable in most all browsers."'
    - option: sugarizer_enabled
      value: "{{ sugarizer_enabled }}"