Merge pull request #2217 from holta/iiab.ini-descriptions

Var cleanup, remove tags, /etc/iiab/iiab.ini, Sugarizer deps, Nextcloud, rename usb-lib to usb_lib

roles/0-DEPRECATED-ROLES/activity-server/tasks/main.yml

@@ -72,7 +72,7 @@
 
 - name: Copy xs-activity-server config file
   template: src=xs-activity-server.conf
-            dest=/etc/{{ apache_config_dir }}
+            dest=/etc/{{ apache_conf_dir }}
             owner=root
             group=root
             mode=0644

roles/0-DEPRECATED-ROLES/docker/tasks/main.yml

@@ -5,7 +5,6 @@
     - docker
     - python-docker-py
   when: docker_install | bool
-  #tags: download
 
 - name: put the systemd startup file in place
   template: src=docker.service

roles/0-DEPRECATED-ROLES/dokuwiki/tasks/install.yml

@@ -29,10 +29,10 @@
     state: link
     force: yes
 
-- name: Install /etc/{{ apache_config_dir }}/dokuwiki.conf from template, for DokuWiki's http://box{{ dokuwiki_url }}
+- name: Install /etc/{{ apache_conf_dir }}/dokuwiki.conf from template, for DokuWiki's http://box{{ dokuwiki_url }}
   template:
     src: dokuwiki.conf.j2
-    dest: "/etc/{{ apache_config_dir }}/dokuwiki.conf"
+    dest: "/etc/{{ apache_conf_dir }}/dokuwiki.conf"
 
 # - name: Symlink /etc/apache2/sites-enabled/dokuwiki.conf to /etc/apache2/sites-available/dokuwiki.conf if dokuwiki_enabled (debuntu)
 #   file:

roles/0-DEPRECATED-ROLES/ejabberd/tasks/main.yml

@@ -2,7 +2,6 @@
   package:
     name: ejabberd
     state: present
-  #tags: download
 
 #- name: Configure ejabberd
 #  template:

roles/0-DEPRECATED-ROLES/ejabberd_xs/tasks/main.yml

@@ -3,7 +3,6 @@
            state=present
   with_items:
    - ejabberd-2.1.11
-  #tags: download
   when: not is_debuntu
 
 # need to use lineinfile and better regexp

roles/0-DEPRECATED-ROLES/idmgr/tasks/main.yml

@@ -7,7 +7,6 @@
    - xinetd
    - xs-rsync
    - incron
-  #tags: download
 
 - name: Configure idmgr
   template: backup=yes

roles/0-DEPRECATED-ROLES/moodle-1.9/moodle/tasks/main.yml

@@ -9,7 +9,7 @@
     - download
 
 - name: Remove stock moodle conf
-  file: path='/etc/{{ apache_config_dir }}/moodle.conf'
+  file: path='/etc/{{ apache_conf_dir }}/moodle.conf'
         state=absent
 
 - name: Configure moodle
@@ -21,7 +21,7 @@
             mode={{ item.mode }}
   with_items:
     - src: '020-iiab-moodle.conf.j2'
-      dest: '/etc/{{ apache_config_dir }}/020-iiab-moodle.conf'
+      dest: '/etc/{{ apache_conf_dir }}/020-iiab-moodle.conf'
       mode: '0655'
     - src: 'moodle-xs.service.j2'
       dest: '/etc/systemd/system/moodle-xs.service'

roles/0-DEPRECATED-ROLES/osm/tasks/main.yml

@@ -102,10 +102,10 @@
     line: "path_to_virtualenv = '/usr/local/osm'"
     state: present
 
-- name: Install /etc/{{ apache_config_dir }}/osm.conf from template
+- name: Install /etc/{{ apache_conf_dir }}/osm.conf from template
   template:
     src: osm.conf.j2
-    dest: "/etc/{{ apache_config_dir }}/osm.conf"
+    dest: "/etc/{{ apache_conf_dir }}/osm.conf"
     owner: root
     group: root
     mode: 0644
@@ -114,7 +114,7 @@
 
 - name: Create softlink osm.conf from sites-enabled to sites-available (debuntu)
   file:
-    src: "/etc/{{ apache_config_dir }}/osm.conf"
+    src: "/etc/{{ apache_conf_dir }}/osm.conf"
     path: /etc/apache2/sites-enabled/osm.conf
     state: link
   when: osm_enabled and is_debuntu
@@ -125,9 +125,9 @@
     state: absent
   when: not osm_enabled and is_debuntu
 
-- name: Remove /{{ apache_config_dir }}/osm.conf (redhat)
+- name: Remove /{{ apache_conf_dir }}/osm.conf (redhat)
   file:
-    path: "/{{ apache_config_dir }}/osm.conf"
+    path: "/{{ apache_conf_dir }}/osm.conf"
     state: absent
   when: not osm_enabled and is_redhat
 

roles/0-DEPRECATED-ROLES/owncloud/tasks/owncloud_enabled.yml

@@ -7,7 +7,7 @@
 
 - name: Enable owncloud by copying template to httpd config
   template: src=owncloud.conf.j2
-            dest=/etc/{{ apache_config_dir }}/owncloud.conf
+            dest=/etc/{{ apache_conf_dir }}/owncloud.conf
             owner=root
             group=root
             mode=0644

roles/0-DEPRECATED-ROLES/pathagar/tasks/main.yml

@@ -179,11 +179,11 @@
     # group: root
     # mode: '0644'
 
-- name: Install /etc/{{ apache_config_dir }}/pathagar.conf from template
+- name: Install /etc/{{ apache_conf_dir }}/pathagar.conf from template
   template:
     src: pathagar.conf
     backup: yes
-    dest: "/etc/{{ apache_config_dir }}/pathagar.conf"
+    dest: "/etc/{{ apache_conf_dir }}/pathagar.conf"
     mode: 0644
 
 - name: Enable Pathagar via Apache (debuntu)

roles/0-DEPRECATED-ROLES/rachel/tasks/rachel_enabled.yml

@@ -1,6 +1,6 @@
 - name: Copy RACHEL httpd conf file
   template: src=rachel.conf.j2
-            dest=/etc/{{ apache_config_dir }}/rachel.conf
+            dest=/etc/{{ apache_conf_dir }}/rachel.conf
 
 - name: enable Rachel
   file: path=/etc/apache2/sites-enabled/rachel.conf

roles/0-DEPRECATED-ROLES/schooltool/tasks/main.yml

@@ -18,7 +18,7 @@
     -  dest: '/etc/systemd/system/schooltool.service'
        src: 'schooltool.service'
        mode: '0644'
-    -  dest: '/etc/{{ apache_config_dir }}/schooltool.conf'
+    -  dest: '/etc/{{ apache_conf_dir }}/schooltool.conf'
        src:  'schooltool.conf'
        mode: '0644'
 

roles/0-DEPRECATED-ROLES/sugar-stats/tasks/main.yml

@@ -6,7 +6,6 @@
     - active-document
     - restful-document
     - python-xappy
-  #tags: download
 
 - name: Create sugar-stats directory tree
   file: path={{ item }}

roles/0-DEPRECATED-ROLES/teamviewer/tasks/install.yml

@@ -2,22 +2,18 @@
 - name: Install Xfce group of packages
   shell: "yum groupinstall -y xfce"
   when: xo_model == "none" and internet_available and ansible_distribution_version <= "20"
-  #tags: download
 
 - name: Install X11 group of packages
   shell: "yum groupinstall -y 'X Window system'"
   when: xo_model == "none" and internet_available and ansible_distribution_version <= "20"
-  #tags: download
 
 - name: Install Xfce group of packages
   shell: yum groupinstall -y "Xfce Desktop" --exclude fedora-release\*
   when: xo_model == "none" and internet_available and ansible_distribution_version >= "21"
-  #tags: download
 
 - name: Install X Windows on CentOS
   shell: yum groupinstall -y "Server with GUI"
   when: internet_available and ansible_distribution == "CentOS"
-  #tags: download
 
 - name: Download TeamViewer software
   get_url:
@@ -25,7 +21,6 @@
     dest: "{{ yum_packages_dir }}/{{ teamviewer_rpm_file }}"
     timeout: "{{ download_timeout }}"
   when: internet_available | bool
-  #tags: download
 
 # F22 has issues with yum localinstall exclude for now
 - name: Do the install of TeamViewer, pulling in any required dependencies

roles/2-common/tasks/iptables.yml

@@ -31,14 +31,12 @@
     name: iptables-persistent
     state: present
   when: is_debuntu | bool
-  #tags: download
 
 - name: Install package iptables-services (OS's other than debuntu)
   package:
     name: iptables-services
     state: present
   when: not is_debuntu
-  #tags: download
 
 - name: Install /etc/sysconfig/iptables-config from template
   template:

roles/2-common/tasks/xo.yml

@@ -132,7 +132,6 @@
   with_items:
     - hostapd_8188_i386
   when: wifi_id == "tplink_WM725M" and xo_model == "XO-1.5" and internet_available
-  #tags: xo
 
 - name: Put the substitute in place
   copy:

roles/4-server-options/tasks/main.yml

@@ -22,9 +22,9 @@
     name: bluetooth
   when: is_rpi and bluetooth_install    # or bluetooth_installed is defined
 
-- name: USB-LIB
+- name: USB_LIB
   include_role:
-    name: usb-lib
+    name: usb_lib
   when: usb_lib_install | bool
 
 # This is in Stage 4-SERVER-OPTIONS (rather than 3-BASE-SERVER) because var

roles/all-vars/tasks/main.yml

@@ -11,4 +11,3 @@
 
   debug: 
     msg: "{{ msg.split('\n') }}"       
-  #tags: debug_info

roles/awstats/tasks/enable.yml

@@ -49,7 +49,7 @@
       value: AWStats
     - option: description
       value: '"AWStats (originally known as Advanced Web Statistics) is a package written in Perl which generates static or dynamic html summaries based upon web server logs."'
-    - option: installed
+    - option: install
       value: "{{ awstats_install }}"
     - option: enabled
       value: "{{ awstats_enabled }}"

roles/awstats/tasks/install.yml

@@ -30,10 +30,10 @@
     - "{{ apache_log_dir }}"
     - /usr/lib/cgi-bin/awstats    # create backward compatible path for awstats
 
-- name: Install /etc/{{ apache_config_dir }}/awstats.conf from template
+- name: Install /etc/{{ apache_conf_dir }}/awstats.conf from template
   template:
     src: apache-awstats.conf
-    dest: "/etc/{{ apache_config_dir }}/awstats.conf"
+    dest: "/etc/{{ apache_conf_dir }}/awstats.conf"
 
 - name: Install /etc/logrotate.d/apache2 from template, to ensure logrotate doesn't make logs unreadable
   template:
@@ -76,6 +76,13 @@
   shell: /usr/bin/perl /usr/lib/cgi-bin/awstats.pl -config=schoolserver -update
   # when: awstats_enabled | bool
 
+
+# RECORD AWStats AS INSTALLED
+
+- name: "Set 'awstats_installed: True'"
+  set_fact:
+    awstats_installed: True
+
 - name: "Add 'awstats_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/azuracast/tasks/install.yml

@@ -64,6 +64,13 @@
   args:
     chdir: "{{ azuracast_host_dir }}"
 
+
+# RECORD AzuraCast AS INSTALLED
+
+- name: "Set 'azuracast_installed: True'"
+  set_fact:
+    azuracast_installed: True
+
 - name: "Add 'azuracast_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/bluetooth/tasks/install.yml

@@ -55,6 +55,13 @@
     regexp: '^#DiscoverableTimeout'
     line: 'DiscoverableTimeout = 0'
 
+
+# RECORD Bluetooth AS INSTALLED
+
+- name: "Set 'bluetooth_installed: True'"
+  set_fact:
+    bluetooth_installed: True
+
 - name: "Add 'bluetooth_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/calibre-web/tasks/enable.yml

@@ -35,17 +35,17 @@
 
 # NGINX
 
-# TO DO: restore http://box/libros & http://box/livres, along English (http://box/books)
+# TO DO: restore http://box/libros & http://box/livres, alongside English (#2195)
 
-- name: Enable http://box{{ calibreweb_url1 }} via NGINX, by installing {{ nginx_conf_dir }}/calibre-web-nginx.conf from template
+- name: Enable http://box{{ calibreweb_url1 }} via NGINX, by installing {{ nginx_conf_dir }}/calibre-web-nginx.conf from template    # http://box/books
   template:
     src: calibre-web-nginx.conf.j2
-    dest: "{{ nginx_conf_dir }}/calibre-web-nginx.conf"
+    dest: "{{ nginx_conf_dir }}/calibre-web-nginx.conf"    # /etc/nginx/conf.d
   when: nginx_install and calibreweb_enabled
 
 - name: Disable http://box{{ calibreweb_url1 }} via NGINX, by removing {{ nginx_conf_dir }}/calibre-web-nginx.conf
   file:
-    path: "{{ nginx_conf_dir }}/calibre-web-nginx.conf"
+    path: "{{ nginx_conf_dir }}/calibre-web-nginx.conf"    # /etc/nginx/conf.d
     state: absent
   when: nginx_install and not calibreweb_enabled
 
@@ -64,7 +64,7 @@
     value: "{{ item.value | string }}"
   with_items:
     - option: name
-      value: calibre-web
+      value: Calibre-Web
     - option: description
       value: '"Calibre-Web is a web app providing a clean interface for browsing, reading and downloading e-books."'
     - option: calibreweb_url1

roles/calibre-web/tasks/install.yml

@@ -1,7 +1,6 @@
-- name: Install ImageMagick (debuntu)
+- name: Install ImageMagick package (debuntu)
   package:
-    name:
-      - imagemagick
+    name: imagemagick
     state: present
   when: is_debuntu | bool
 
@@ -14,12 +13,12 @@
     state: present
   when: is_debuntu | bool
 
-- name: Create 3 Calibre-Web folders to store data and configuration files
+- name: "Create 3 Calibre-Web folders to store data and configuration files: {{ calibreweb_home }}, {{ calibreweb_venv_path }}, {{ calibreweb_config }}"
   file:
     path: "{{ item }}"
     owner: "{{ calibreweb_user }}"
     group: "{{ apache_user }}"
-    mode: 0755
+    mode: '0755'
     state: directory
   with_items:
     - "{{ calibreweb_home }}"
@@ -65,12 +64,13 @@
   template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
-    owner: root
-    group: root
-    mode: 0644
+    # owner: root
+    # group: root
+    # mode: '0644'
   with_items:
     - { src: 'calibre-web.service.j2', dest: '/etc/systemd/system/calibre-web.service' }
     - { src: 'calibre-web.conf.j2', dest: '/etc/apache2/sites-available/calibre-web.conf' }
+  when: apache_install | bool
 
 - name: Does /library/calibre-web/metadata.db exist?
   stat:
@@ -83,7 +83,7 @@
     dest: "{{ calibreweb_home }}"
     owner: "{{ calibreweb_user }}"
     group: "{{ apache_user }}"
-    mode: 0644
+    mode: '0644'
     backup: yes
   with_items:
     - roles/calibre-web/files/metadata.db
@@ -97,11 +97,18 @@
     dest: "{{ calibreweb_config }}"
     owner: "{{ calibreweb_user }}"
     group: "{{ apache_user }}"
-    mode: 0644
+    mode: '0644'
     backup: yes
   when: not metadatadb.stat.exists
   #when: calibreweb_provision | bool
 
+
+# RECORD Calibre-Web AS INSTALLED
+
+- name: "Set 'calibreweb_installed: True'"
+  set_fact:
+    calibreweb_installed: True
+
 - name: "Add 'calibreweb_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/calibre/tasks/install.yml

@@ -31,6 +31,9 @@
 # - run testing branch for Ubuntu 16.04: scripts/calibre-install-latest.sh
 # - run unstable branch for Debian etc: scripts/calibre-install-unstable.sh
 
+
+# 2. SYSTEMD SERVICES
+
 - name: Create calibre-serve.service and calibre.conf (IF /usr/bin/calibre WAS MISSING)
   template:
     src: "{{ item.src }}"
@@ -42,7 +45,7 @@
   #register: calibre_config
   with_items:
     - { src: 'calibre-serve.service.j2', dest: '/etc/systemd/system/calibre-serve.service', mode: '0644'}
-    - { src: 'calibre.conf', dest: '/etc/{{ apache_config_dir }}', mode: '0644'}
+    - { src: 'calibre.conf', dest: '/etc/{{ apache_conf_dir }}', mode: '0644'}
   when: (not calib_executable.stat.exists)
 
 - name: Stop service 'calibre-serve' (/usr/bin/calibre-server by Kovid Goyal)
@@ -51,6 +54,7 @@
     state: stopped
     daemon_reload: yes
 
+
 # 3. CREATE USER DATABASE
 
 - name: Create /library/calibre (mandatory since Calibre 3.x)
@@ -68,6 +72,7 @@
     mode: 0644
   when: (not calib_executable.stat.exists)
 
+
 # 4. CREATE CONTENT DATABASE WITH A SAMPLE BOOK (REQUIRED AS OF CALIBRE 3.x)
 
 - name: Does /library/calibre/metadata.db exist?
@@ -79,6 +84,13 @@
   include_tasks: create-db.yml
   when: not calibre_db.stat.exists
 
+
+# 5. RECORD Calibre AS INSTALLED
+
+- name: "Set 'calibre_installed: True'"
+  set_fact:
+    calibre_installed: True
+
 - name: "Add 'calibre_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/captiveportal/tasks/install.yml

@@ -52,6 +52,13 @@
   args:
     creates: /etc/nginx/sites-available/capture.conf
 
+
+# RECORD Captive Portal AS INSTALLED
+
+- name: "Set 'captiveportal_installed: True'"
+  set_fact:
+    captiveportal_installed: True
+
 - name: "Add 'captiveportal_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/captiveportal/tasks/main.yml

@@ -19,7 +19,7 @@
     quiet: yes
 
 
-- name: Install Captive Portal if 'captiveportal_installed' is not defined in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
+- name: Install Captive Portal if 'captiveportal_installed' not defined, e.g. in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
   include_tasks: install.yml
   when: captiveportal_installed is undefined
 
@@ -39,7 +39,7 @@
       value: Captive Portal
     - option: description
       value: '"Captive Portal tries to open the browser automatically, so users don''t have to type in URL''s like http://box.lan in support of kiosk-like situations, in multilingual and less literate communities."'
-    - option: installed
+    - option: install
       value: "{{ captiveportal_install }}"
     - option: enabled
       value: "{{ captiveportal_enabled }}"

roles/cups/tasks/main.yml

@@ -1,20 +1,33 @@
-# administer this service by browsing to localhost:631
+# Administer CUPS at http://box:631
+# Above URL does NOT work over OpenVPN (ANYONE KNOW WHY?)
+
+# TO DO:
+# - validate input vars + prereqs
+# - move 5 top stanzas into install.yml
+# - move 5-7 next stanzas into enable-or-disable.yml
+
+
 - name: Install 'cups' package
   package:
     name: cups
     state: present
-  when: cups_install | bool
-  #tags: download
 
 - name: Install our own /etc/cups/cupsd.conf from template, to permit local LAN admin
   template:
     src: cupsd.conf
     dest: /etc/cups/cupsd.conf
 
-- name: Install /etc/{{ apache_config_dir }}/cups.conf from template
+- name: Install /etc/{{ apache_conf_dir }}/cups.conf from template
   template:
     src: cups.conf
-    dest: "/etc/{{ apache_config_dir }}/"
+    dest: "/etc/{{ apache_conf_dir }}/"
+
+
+# RECORD CUPS AS INSTALLED
+
+- name: "Set 'cups_installed: True'"
+  set_fact:
+    cups_installed: True
 
 - name: "Add 'cups_installed: True' to {{ iiab_state_file }}"
   lineinfile:
@@ -22,11 +35,16 @@
     regexp: '^cups_installed'
     line: 'cups_installed: True'
 
+
 - name: Enable http://box/cups via Apache (MIGHT NOT WORK?)
   command: a2ensite cups.conf
-  when: cups_enabled
+  when: cups_enabled | bool
 
-- name: Enable & Start services 'cups' and 'cups-browsed' (OS's other than Fedora 18)
+- name: Disable http://box/cups via Apache
+  command: a2dissite cups.conf
+  when: not cups_enabled
+
+- name: Enable & Start 'cups' and 'cups-browsed' systemd services (OS's other than Fedora 18)
   service:
     name: "{{ item }}"
     state: started
@@ -36,34 +54,35 @@
     - cups-browsed
   when: cups_enabled and not is_F18
 
-- name: Enable & Start service 'cups' (Fedora 18, for XO laptops)
+- name: Enable & Start 'cups' systemd service (Fedora 18, for XO laptops)
   systemd:
     name: cups
     state: started
     enabled: yes
   when: cups_enabled and is_F18
 
-- name: Permit headless admin of CUPS -- only works when CUPS daemon is running
+- name: Permit headless admin of CUPS -- only works when CUPS daemon is running (if cups_enabled)
   shell: "cupsctl --remote-admin"
   when: cups_enabled | bool
 
-- name: Disable both CUPS services (OS's other than Fedora 18)
+- name: Disable & Stop 'cups' & 'cups-browsed' systemd services (OS's other than Fedora 18)
   systemd:
     name: "{{ item }}"
-    state: stopped
     enabled: no
+    state: stopped
   with_items:
     - cups
     - cups-browsed
   when: not cups_enabled and not is_F18
 
-- name: Disable services for CUPS (Fedora 18, for XO laptops)
+- name: Disable & Stop 'cups' systemd service (Fedora 18, for XO laptops)
   systemd:
     name: cups
-    state: stopped
     enabled: no
+    state: stopped
   when: not cups_enabled and is_F18
 
+
 - name: Add 'cups' variable values to {{ iiab_ini_file }}
   ini_file:
     path: "{{ iiab_ini_file }}"
@@ -74,8 +93,8 @@
     - option: name
       value: CUPS
     - option: description
-      value: '"CUPS (Common UNIX Printing System) is a modular printing system that allows a computer to act as a print server. A computer running CUPS is a host that can accept print jobs from client computers, process them, and send them to the appropriate printer."'
-    - option: installed
+      value: '"CUPS (Common UNIX Printing System) is a modular printing system that allows a computer to act as a print server.  A computer running CUPS is a host that can accept print jobs from client computers, process them, and send them to the appropriate printer."'
+    - option: install
       value: "{{ cups_install }}"
-    - option: cups_enabled
+    - option: enabled
       value: "{{ cups_enabled }}"

roles/elgg/tasks/install.yml

@@ -48,9 +48,9 @@
   copy:
     src: "/opt/{{ elgg_xx }}/vendor/elgg/elgg/install/config/htaccess.dist"
     dest: "/opt/{{ elgg_xx }}/.htaccess"
-    mode: 0644
     owner: "{{ apache_user }}"
     group: "{{ apache_user }}"
+    mode: '0644'
 
 #regexp='^#RewriteBase'
 - name: Change .htaccess to include RewriteBase for http://box{{ elgg_url }}    # http://box/elgg
@@ -63,18 +63,18 @@
 
 - name: Set /opt/elgg/engine directory permissions to 0755 so Apache can write there
   file:
+    state: directory
     path: /opt/elgg/engine/
     owner: "{{ apache_user }}"
-    mode: 0755
-    state: directory
+    mode: '0755'
 
 - name: Change /opt/elgg-{{ elgg_version }} ownership to {{ apache_user }}:{{ apache_user }} (likely not nec, as unarchive & all do this above)
   file:
+    state: directory    # Overkill given recurse below?
     path: "/opt/elgg-{{ elgg_version }}"
     owner: "{{ apache_user }}"
     group: "{{ apache_user }}"
     recurse: yes
-    state: directory
 
 - name: Create upload directory {{ elgg_upload_path }} that Apache (and Elgg) can write to
   file:
@@ -82,10 +82,17 @@
     state: directory
     owner: "{{ apache_user }}"
 
-- name: Install /etc/{{ apache_config_dir }}/elgg.conf from template, for http://box{{ elgg_url }}    # http://box/elgg
+- name: Install /etc/{{ apache_conf_dir }}/elgg.conf from template, for http://box{{ elgg_url }}    # http://box/elgg
   template:
     src: elgg.conf
-    dest: "/etc/{{ apache_config_dir }}/elgg.conf"
+    dest: "/etc/{{ apache_conf_dir }}/elgg.conf"
+
+
+# RECORD Elgg AS INSTALLED
+
+- name: "Set 'elgg_installed: True'"
+  set_fact:
+    elgg_installed: True
 
 - name: "Add 'elgg_installed: True' to {{ iiab_state_file }}"
   lineinfile:

roles/gitea/tasks/enable.yml

@@ -58,7 +58,7 @@
     value: "{{ item.value | string }}"
   with_items:
     - option: name
-      value: gitea
+      value: Gitea
     - option: description
       value: '"Gitea is like GitHub for more offline communities: Git with a cup of tea"'
     - option: gitea_run_directory

roles/gitea/tasks/install.yml

@@ -4,14 +4,12 @@
   systemd:
     name: gitea
     state: stopped
-  #tags: pre-install
   ignore_errors: yes
 
 - name: Ensure group gitea exists
   group:
     name: gitea
     state: present
-  #tags: pre-install
 
 - name: Create user gitea
   user:
@@ -19,7 +17,6 @@
     comment: Gitea daemon account
     groups: gitea
     home: "{{ gitea_home }}"
-  #tags: pre-install
 
 - name: Create Gitea directory structure
   file:
@@ -28,7 +25,6 @@
     owner: gitea
     group: gitea
   with_items: "{{ gitea_subdirectories }}"
-  #tags: pre-install
 
 - name: Make directories data, indexers, and log writable
   file:
@@ -38,7 +34,6 @@
     - data
     - indexers
     - log
-  #tags: pre-install
 
 # Download, verify, and link Gitea binary
 
@@ -52,31 +47,27 @@
     url: "{{ gitea_download_url }}"
     dest: "{{ gitea_install_path }}"
     mode: '0775'
-  #tags: install
   when: internet_available | bool
 
 - name: Download Gitea GPG signature
   get_url:
     url: "{{ gitea_integrity_url }}"
     dest: "{{ gitea_checksum_path }}"
-  #tags: never, verify
   when: internet_available | bool
 
 - name: Verify Gitea binary with GPG signature
   shell: |
     gpg --keyserver pgp.mit.edu --recv {{ gitea_gpg_key }}
     gpg --verify {{ gitea_checksum_path }} {{ gitea_install_path }}
-  #tags: never, verify
   ignore_errors: yes
 
-- name: Link Gitea
+- name: Symlink {{ gitea_link_path }} -> {{ gitea_install_path }}
   file:
     src: "{{ gitea_install_path }}"
-    dest: "{{ gitea_link_path }}"
+    path: "{{ gitea_link_path }}"
     owner: gitea
     group: gitea
     state: link
-  #tags: install
 
 # Configure Gitea
 
@@ -87,12 +78,11 @@
 
 - name: Create Gitea config directory
   file:
-    path: /etc/gitea
     state: directory
+    path: /etc/gitea
     owner: root
     group: gitea
     mode: '0770'
-  #tags: config
 
 - name: Create app.ini
   template:
@@ -110,7 +100,14 @@
     dest: "{{ item.dest }}"
   with_items:
     - { src: 'gitea.service.j2', dest: '/etc/systemd/system/gitea.service' }
-    - { src: 'gitea.conf.j2', dest: "/etc/{{ apache_config_dir }}/gitea.conf" }
+    - { src: 'gitea.conf.j2', dest: "/etc/{{ apache_conf_dir }}/gitea.conf" }
+
+
+# RECORD Gitea AS INSTALLED
+
+- name: "Set 'gitea_installed: True'"
+  set_fact:
+    gitea_installed: True
 
 - name: "Add 'gitea_installed: True' to {{ iiab_state_file }}"
   lineinfile:

roles/homepage/tasks/main.yml

@@ -6,14 +6,14 @@
     mode: 0755
     state: directory
 
-- name: Install /etc/{{ apache_config_dir }}/iiab-homepage.conf from template, for http://box redirect to http://box/home/
+- name: Install /etc/{{ apache_conf_dir }}/iiab-homepage.conf from template, for http://box redirect to http://box/home/
   template:
     src: iiab-homepage.conf
-    dest: "/etc/{{ apache_config_dir }}/iiab-homepage.conf"
+    dest: "/etc/{{ apache_conf_dir }}/iiab-homepage.conf"
 
-- name: Symlink /etc/apache2/sites-enabled/iiab-homepage.conf to /etc/{{ apache_config_dir }}/iiab-homepage.conf (debuntu)
+- name: Symlink /etc/apache2/sites-enabled/iiab-homepage.conf to /etc/{{ apache_conf_dir }}/iiab-homepage.conf (debuntu)
   file:
-    src: "/etc/{{ apache_config_dir }}/iiab-homepage.conf"
+    src: "/etc/{{ apache_conf_dir }}/iiab-homepage.conf"
     path: /etc/apache2/sites-enabled/iiab-homepage.conf
     state: link
   when: is_debuntu | bool

roles/httpd/tasks/enable.yml

@@ -21,29 +21,29 @@
     # group: root
     # mode: 0644
   with_items:
-    - { src: 'roles/httpd/templates/010-iiab.conf.j2', dest: '/etc/{{ apache_config_dir }}/010-iiab.conf' }
-    - { src: 'roles/httpd/templates/proxy_ajp.conf.j2', dest: '/etc/{{ apache_config_dir }}/proxy_ajp.conf' }
+    - { src: 'roles/httpd/templates/010-iiab.conf.j2', dest: '/etc/{{ apache_conf_dir }}/010-iiab.conf' }
+    - { src: 'roles/httpd/templates/proxy_ajp.conf.j2', dest: '/etc/{{ apache_conf_dir }}/proxy_ajp.conf' }
 
 - name: Enable our site, creating 010-iiab.conf symlink from sites-enabled to sites-available (debuntu)
   file:
-    src: "/etc/{{ apache_config_dir }}/010-iiab.conf"
+    src: "/etc/{{ apache_conf_dir }}/010-iiab.conf"
     path: /etc/apache2/sites-enabled/010-iiab.conf
     state: link
   when: is_debuntu | bool
 
 # SEE https://github.com/iiab/iiab/issues/1143 as the old roles/osm playbook is rarely used as of late 2018 (if anybody still uses roles/osm, they can overwrite osm.conf using the original osm playbook, or in other ways)
-- name: Install /etc/{{ apache_config_dir }}/osm.conf for http://box/maps (all OS's)
+- name: Install /etc/{{ apache_conf_dir }}/osm.conf for http://box/maps (all OS's)
   copy:
     src: roles/httpd/files/osm.conf
-    dest: "/etc/{{ apache_config_dir }}"
+    dest: "/etc/{{ apache_conf_dir }}"
     # owner: root
     # group: root
     # mode: 0644
   when: osm_vector_maps_install | bool
 
-- name: Symlink /etc/apache2/sites-enabled/osm.conf -> /etc/{{ apache_config_dir }}/osm.conf (debuntu)
+- name: Symlink /etc/apache2/sites-enabled/osm.conf -> /etc/{{ apache_conf_dir }}/osm.conf (debuntu)
   file:
-    src: "/etc/{{ apache_config_dir }}/osm.conf"
+    src: "/etc/{{ apache_conf_dir }}/osm.conf"
     path: /etc/apache2/sites-enabled/osm.conf
     state: link
   when: is_debuntu and osm_vector_maps_enabled

roles/httpd/tasks/install.yml

@@ -8,7 +8,6 @@
       - "php{{ php_version }}-curl"
     state: present
   when: is_debian | bool
-  #tags: download
 
 - name: 'Install 2 packages: apache2, php (ubuntu)'
   package:
@@ -19,7 +18,6 @@
       - php
     state: present
   when: is_ubuntu | bool
-  #tags: download
 
 # 2019-05-30: It's interesting that http://box.lan/admin and everything seems
 # to work even without php{{ php_version }}-sqlite3 as confirmed on Ubuntu
@@ -50,7 +48,6 @@
       - php-curl
     state: present
   when: is_redhat | bool
-  #tags: download
 
 # remove symlinks for mpm-event, replace with mpm-prefork
 - name: Remove both mpm_event symlinks from /etc/apache2/mods-enabled (debuntu)
@@ -143,6 +140,13 @@
     mode: '0755'
     state: directory
 
+
+# RECORD Apache AS INSTALLED
+
+- name: "Set 'apache_installed: True'"
+  set_fact:
+    apache_installed: True
+
 - name: "Add 'apache_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/iiab-admin/tasks/access.yml

@@ -4,4 +4,3 @@
     - screen
     - lynx
     state: present
-  #tags: download

roles/iiab-admin/tasks/main.yml

@@ -1,9 +1,7 @@
 - include_tasks: admin-user.yml
-  #tags: base
   when: iiab_admin_user_install | bool
 
 - include_tasks: access.yml
-  #tags: base
 
 - name: Add 'iiab-admin' variable values to {{ iiab_ini_file }}
   ini_file:

roles/internetarchive/tasks/enable.yml

@@ -40,8 +40,8 @@
     value: "{{ item.value | string }}"
   with_items:
     - option: name
-      value: Internet Archive Offline
+      value: Internet Archive
     - option: description
-      value: '"Dweb-mirror is intended to make the Internet Archive experience and UI available offline."'
+      value: '"Take the Internet Archive experience and materials offline, in a decentralized way!"'
     - option: internetarchive_enabled
       value: "{{ internetarchive_enabled }}"

roles/internetarchive/tasks/install.yml

@@ -1,20 +1,33 @@
-- name: Install NodeJS
+# INSTALL 3 PREREQS
+
+- name: "Set 'nodejs_install: True' and 'nodejs_enabled: True'"
+  set_fact:
+    nodejs_install: True
+    nodejs_enabled: True
+
+- name: Install Node.JS
   include_role:
     name: nodejs
 
+- name: "Set 'yarn_install: True' and 'yarn_enabled: True'"
+  set_fact:
+    yarn_install: True
+    yarn_enabled: True
+
 - name: Install Yarn
   include_role:
     name: yarn
 
-- name: Install packages needed by Internet Archive Offline
+- name: Install package 'libsecret-1-dev'
   package:
-    name:
-      - libsecret-1-dev
+    name: libsecret-1-dev
     state: present
 
-- name: Create directory {{ internetarchive_dir }}
+# CREATE 2 DIRS & RUN YARN
+
+- name: mkdir {{ internetarchive_dir }}
   file:
-    path: "{{ internetarchive_dir }}"
+    path: "{{ internetarchive_dir }}"    # /opt/iiab/internetarchive
     state: directory
     owner: "root"
 
@@ -26,7 +39,7 @@
   when: internet_available | bool
   register: internetarchive_installing
 
-- name: Create directory /library/archiveorg
+- name: mkdir /library/archiveorg
   file:
     path: "/library/archiveorg"
     state: directory
@@ -38,13 +51,20 @@
   template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
-    mode: 0644
+    mode: '0644'
     owner: root
     group: root
   with_items:
     - { src: 'internetarchive.service.j2', dest: '/etc/systemd/system/internetarchive.service' }
     - { src: 'internetarchive.conf', dest: '/etc/apache2/sites-available/internetarchive.conf' }
 
+
+# RECORD Internet Archive AS INSTALLED
+
+- name: "Set 'internetarchive_installed: True'"
+  set_fact:
+    internetarchive_installed: True
+
 - name: "Add 'internetarchive_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/kalite/tasks/install.yml

@@ -80,7 +80,7 @@
   with_items:
     - { src: 'kalite.sh.j2', dest: '/usr/bin/kalite', mode: '0755'}
     - { src: 'kalite-serve.service.j2', dest: '/etc/systemd/system/kalite-serve.service', mode: '0644'}
-    - { src: 'kalite.conf', dest: '/etc/{{ apache_config_dir }}', mode: '0644'}
+    - { src: 'kalite.conf', dest: '/etc/{{ apache_conf_dir }}', mode: '0644'}
 
 - name: Fix KA Lite bug in regex parsing ifconfig output, for @m-anish's network names that contain dashes
   replace:
@@ -88,9 +88,8 @@
     regexp: 'a-zA-Z0-9'
     replace: 'a-zA-Z0-9\-'
 
-# SHOULD REALLY BE HERE...but for now this runs in kalite/tasks/setup.yml
-# - name: "Add 'kalite_installed: True' to {{ iiab_state_file }}"
-#   lineinfile:
-#     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
-#     regexp: '^kalite_installed'
-#     line: 'kalite_installed: True'
+
+# RECORD KA Lite AS INSTALLED
+
+# TO DO: move the last 2 stanzas from setup.yml so they live right here,
+# as any action named "install.yml" should do exactly what it says (install!)

roles/kalite/tasks/setup.yml

@@ -15,7 +15,16 @@
   async: 1800
   poll: 10
 
-# CAN WE MOVE THIS TO THE END OF kalite/tasks/install.yml (HENCE ITS FILENAME!)
+
+# RECORD KA Lite AS INSTALLED
+
+# TO DO: move these last 2 stanzas to install.yml,
+# as any action named "install.yml" should do exactly what it says (install!)
+
+- name: "Set 'kalite_installed: True'"
+  set_fact:
+    kalite_installed: True
+
 - name: "Add 'kalite_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/kiwix/tasks/enable.yml

@@ -82,7 +82,7 @@
   - option: name
     value: Kiwix
   - option: description
-    value: '"Part of https://github.com/kiwix/kiwix-tools/ - kiwix-serve is the most used web server for ZIM files."'
+    value: '"Part of https://github.com/kiwix/kiwix-tools/ -- kiwix-serve is the most used web server for ZIM files."'
   - option: kiwix_url
     value: "{{ kiwix_url }}"
   - option: kiwix_path

roles/kiwix/tasks/install.yml

@@ -44,6 +44,7 @@
     path: "{{ kiwix_path }}/bin"
     state: directory
 
+
 # 2. INSTALL KIWIX-TOOLS EXECUTABLES
 
 - name: Unarchive {{ kiwix_src_file }} to /tmp    # e.g. kiwix-tools_linux-armhf-0.6.1-1.tar.gz
@@ -54,6 +55,7 @@
 - name: Move /tmp/{{ kiwix_src_dir }}/* to permanent location /opt/iiab/kiwix/bin (armhf & linux64 & i686)
   shell: "mv /tmp/{{ kiwix_src_dir }}/* {{ kiwix_path }}/bin/"
 
+
 # 3. ENABLE MODS FOR APACHE PROXY IF DEBUNTU
 
 # 2019-10-07: Moved to roles/httpd/tasks/main.yml
@@ -68,6 +70,7 @@
 #    - rewrite
 #  when: is_debuntu | bool
 
+
 # 4. INSTALL iiab-make-kiwix-lib*, kiwix-serve.service, kiwix.conf for Apache
 
 - name: 'Install from templates: kiwix-serve.service, iiab-make-kiwix-lib, iiab-make-kiwix-lib.py, kiwix.conf'
@@ -79,9 +82,14 @@
     - { src: 'kiwix-serve.service.j2', dest: '/etc/systemd/system/kiwix-serve.service', mode: '0644' }
     - { src: 'iiab-make-kiwix-lib', dest: '/usr/bin/iiab-make-kiwix-lib', mode: '0755' }
     - { src: 'iiab-make-kiwix-lib3.py', dest: '/usr/bin/iiab-make-kiwix-lib.py', mode: '0755' }
-    - { src: 'kiwix.conf.j2', dest: '/etc/{{ apache_config_dir }}/kiwix.conf', mode: '0644' }
+    - { src: 'kiwix.conf.j2', dest: '/etc/{{ apache_conf_dir }}/kiwix.conf', mode: '0644' }
 
-# 5. RECORD KIWIX AS INSTALLED IN /etc/iiab/iiab_state.yml
+
+# 5. RECORD Kiwix AS INSTALLED
+
+- name: "Set 'kiwix_installed: True'"
+  set_fact:
+    kiwix_installed: True
 
 - name: "Add 'kiwix_installed: True' to {{ iiab_state_file }}"
   lineinfile:

roles/kolibri/tasks/install.yml

@@ -113,6 +113,13 @@
 #  apache2_module:
 #    name: proxy_http
 
+
+# RECORD Kolibri AS INSTALLED
+
+- name: "Set 'kolibri_installed: True'"
+  set_fact:
+    kolibri_installed: True
+
 - name: "Add 'kolibri_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/lokole/tasks/install.yml

@@ -67,10 +67,10 @@
     . {{ lokole_run_directory }}/webapp_secrets.sh
     {{ lokole_venv }}/bin/manage.py createadmin --name='{{ lokole_admin_user }}' --password='{{ lokole_admin_password }}'
 
-- name: Install /etc/{{ apache_config_dir }}/lokole.conf from template, for http://box{{ lokole_url }} via Apache   # http://box/lokole
+- name: Install /etc/{{ apache_conf_dir }}/lokole.conf from template, for http://box{{ lokole_url }} via Apache   # http://box/lokole
   template:
     src: lokole.conf.j2
-    dest: "/etc/{{ apache_config_dir }}/lokole.conf"
+    dest: "/etc/{{ apache_conf_dir }}/lokole.conf"
   when: apache_install | bool
 
 - name: Install /etc/systemd/system/lokole.service unit file from template
@@ -86,6 +86,13 @@
 #     state: restarted
 #   when: lokole_enabled | bool
 
+
+# RECORD Lokole AS INSTALLED
+
+- name: "Set 'lokole_installed: True'"
+  set_fact:
+    lokole_installed: True
+
 - name: "Add 'lokole_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/mediawiki/tasks/enable.yml

@@ -43,7 +43,7 @@
     value: "{{ item.value | string }}"
   with_items:
     - option: name
-      value: mediawiki
+      value: MediaWiki
     - option: description
       value: '"MediaWiki is a blog and web site management application, from the people who create Wikipedia."'
     - option: mediawiki_src

roles/mediawiki/tasks/install.yml

@@ -80,10 +80,17 @@
     regexp: '^\$wgServer ='
     line: '$wgServer = "//" . $_SERVER["HTTP_HOST"];'
 
-- name: Install /etc/{{ apache_config_dir }}/mediawiki.conf from template, for http://box{{ mediawiki_url }} via Apache
+- name: Install /etc/{{ apache_conf_dir }}/mediawiki.conf from template, for http://box{{ mediawiki_url }} via Apache
   template:
     src: mediawiki.conf.j2
-    dest: "/etc/{{ apache_config_dir }}/mediawiki.conf"
+    dest: "/etc/{{ apache_conf_dir }}/mediawiki.conf"
+
+
+# RECORD MediaWiki AS INSTALLED
+
+- name: "Set 'mediawiki_installed: True'"
+  set_fact:
+    mediawiki_installed: True
 
 - name: "Add 'mediawiki_installed: True' to {{ iiab_state_file }}"
   lineinfile:

roles/minetest/tasks/provision.yml

@@ -1,18 +1,18 @@
 # Calculate local variables
 - include_tasks: calc_vars.yml
 
-- name: Check for minetest world file ({{ minetest_world_dir }}/world.mt)
+- name: Check for Minetest world file ({{ minetest_world_dir }}/world.mt)
   stat:
     path: "{{ minetest_world_dir }}/world.mt"
   register: minetest_world
 
-- name: Create /library/games
+- name: mkdir /library/games
   file:
     state: directory
     path: /library/games
     # owner: root
     # group: root
-    # mode: 0755
+    # mode: '0755'
 
 # rpi only
 - include_tasks: rpi_minetest_install.yml
@@ -28,7 +28,7 @@
     depth: 1
   when: not minetest_world.stat.exists and minetest_default_game == "carbone-ng"
 
-- name: Give minetest user ownership of carbone-ng
+- name: Give Minetest user ownership of carbone-ng
   file:
     state: directory
     path: "{{ minetest_game_dir }}"
@@ -69,6 +69,13 @@
     path: "{{ minetest_game_dir }}/mods/name_restrictions"
   when: minetest_default_game == "carbone-ng"
 
+
+# RECORD Minetest AS INSTALLED
+
+- name: "Set 'minetest_installed: True'"
+  set_fact:
+    minetest_installed: True
+
 - name: "Add 'minetest_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/mongodb/tasks/enable.yml

@@ -1,38 +0,0 @@
-# 3. ENABLE/DISABLE
-
-# 2019-07-08: mongodb_install is completely ignored.  FYI mongodb_enabled: False
-# works but is ineffective, as Sugarizer starts mongodb's systemd svc on its own
-
-- name: Enable & Restart 'mongodb' systemd service if mongodb_enabled, incl daemon-reload (in case mongodb.service changed?)
-  systemd:
-    name: mongodb
-    daemon_reload: yes
-    enabled: yes
-    state: restarted
-  when: mongodb_enabled | bool
-
-- name: Disable 'mongodb' service, if not mongodb_enabled
-  systemd:
-    name: mongodb
-    daemon_reload: yes
-    enabled: no
-    state: stopped
-  when: not mongodb_enabled
-
-
-# 4. DOCUMENT IN /etc/iiab/iiab.ini
-
-- name: Add 'mongodb' variable values to {{ iiab_ini_file }}
-  ini_file:
-    path: "{{ iiab_ini_file }}"
-    section: mongodb
-    option: "{{ item.option }}"
-    value: "{{ item.value | string }}"
-  with_items:
-    - option: name
-      value: MongoDB
-    - option: description
-      value: '"MongoDB is an open-source document database that provides high performance, high availability, and automatic scaling."'
-    - option: enabled
-      value: "{{ mongodb_enabled }}"
-

roles/mongodb/tasks/install.yml

@@ -7,7 +7,6 @@
       - mongodb    # 2019-01-31: this package does not exist on (cannot be installed on) Debian 10, SEE #1437
     state: present
   when: internet_available and not is_rpi
-  #tags: download
 
 # 2019-02-02: Sugarizer with Node.js 10.x requires MongoDB 2.6+ so
 # https://andyfelong.com/2017/08/mongodb-3-0-14-for-raspbian-stretch/
@@ -101,7 +100,7 @@
   when: is_rpi | bool
 
 
-# 2. CONFIGURE FOR IIAB
+# 2. CONFIGURE MongoDB FOR IIAB
 
 - name: 'Create 3 dirs for MongoDB: /var/lib/mongodb, /var/log/mongodb, {{ mongodb_db_path }}'
   file:
@@ -127,6 +126,13 @@
     - { src: 'mongodb.service.j2', dest: '/etc/systemd/system/mongodb.service', mode: '0644' }
     - { src: 'iiab-mongodb-repair-if-no-lock.j2', dest: '/usr/bin/iiab-mongodb-repair-if-no-lock', mode: '0755' }
 
+
+# 3. RECORD MongoDB AS INSTALLED
+
+- name: "Set 'mongodb_installed: True'"
+  set_fact:
+    mongodb_installed: True
+
 - name: "Add 'mongodb_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/mongodb/tasks/main.yml

@@ -1,11 +1,59 @@
-# 2019-07-08: mongodb_install is completely ignored.  FYI mongodb_enabled: False
-# works but is ineffective, as Sugarizer starts mongodb's systemd svc on its own
+# "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
 
-- name: Install 'mongodb' if not Debian 10+
+# 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 "mongodb_install is sameas true" (boolean not string etc)
+  assert:
+    that: mongodb_install is sameas true
+    fail_msg: "PLEASE SET 'mongodb_install: True' e.g. IN: /etc/iiab/local_vars.yml"
+    quiet: yes
+
+- name: Assert that "mongodb_enabled | type_debug == 'bool'" (boolean not string etc)
+  assert:
+    that: mongodb_enabled | type_debug == 'bool'
+    fail_msg: "PLEASE GIVE VARIABLE 'mongodb_enabled' A PROPER (UNQUOTED) ANSIBLE BOOLEAN VALUE e.g. IN: /etc/iiab/local_vars.yml"
+    quiet: yes
+
+- name: EXIT MONGODB 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 MongoDB if 'mongodb_installed' not defined, e.g. in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
   include_tasks: install.yml
-  when: not ((is_debian and not is_raspbian) and (not is_debian_8) and (not is_debian_9)) and not mongodb_installed is defined
+  when: mongodb_installed is undefined
 
-- name: Enable 'mongodb' if not Debian 10+
-  include_tasks: enable.yml
-  when: not ((is_debian and not is_raspbian) and (not is_debian_8) and (not is_debian_9)) or mongodb_installed is defined
 
+- name: Enable & Restart 'mongodb' systemd service if mongodb_enabled, incl daemon-reload (in case mongodb.service changed?)
+  systemd:
+    name: mongodb
+    daemon_reload: yes
+    enabled: yes
+    state: restarted
+  when: mongodb_enabled | bool
+
+- name: Disable 'mongodb' service, if not mongodb_enabled
+  systemd:
+    name: mongodb
+    enabled: no
+    state: stopped
+  when: not mongodb_enabled
+
+
+- name: Add 'mongodb' variable values to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: mongodb
+    option: "{{ item.option }}"
+    value: "{{ item.value | string }}"
+  with_items:
+    - option: name
+      value: MongoDB
+    - option: description
+      value: '"MongoDB is an open-source document database that provides high performance, high availability, and automatic scaling."'
+    - option: enabled
+      value: "{{ mongodb_enabled }}"

roles/monit/tasks/install.yml

@@ -2,14 +2,12 @@
   package:
     name: monit
     state: present
-  #tags: download
 
 - name: Install chkconfig package (debian-8)
   package:
     name: chkconfig
     state: present
   when: is_debian and ansible_distribution_major_version == "8"
-  #tags: download
 
 - name: Install /etc/monitrc from template
   template:
@@ -56,6 +54,13 @@
     - option: enabled
       value: "{{ monit_enabled }}"
 
+
+# RECORD Monit AS INSTALLED
+
+- name: "Set 'monit_installed: True'"
+  set_fact:
+    monit_installed: True
+
 - name: "Add 'monit_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/moodle/tasks/install.yml

@@ -1,4 +1,11 @@
-- name: "Set PostgreSQL vars 'postgresql_install: True' and 'postgresql_enabled: True'"
+- debug:
+    var: postgresql_install
+- debug:
+    var: postgresql_enabled
+- debug:
+    var: postgresql_installed
+
+- name: "Set 'postgresql_install: True' and 'postgresql_enabled: True'"
   set_fact:
     postgresql_install: True
     postgresql_enabled: True
@@ -78,13 +85,13 @@
 
 - name: Remove Apache's stock moodle.conf
   file:
-    path: "/etc/{{ apache_config_dir }}/moodle.conf"
+    path: "/etc/{{ apache_conf_dir }}/moodle.conf"
     state: absent
 
 - name: Install Apache's 022-moodle.conf from template, if moodle_enabled
   template:
     src: 022-moodle.j2
-    dest: "/etc/{{ apache_config_dir }}/022-moodle.conf"
+    dest: "/etc/{{ apache_conf_dir }}/022-moodle.conf"
     # owner: root
     # group: root
     # mode: '0644'
@@ -147,6 +154,13 @@
     path: "{{ moodle_base }}/config.php"
     mode: '0644'
 
+
+# RECORD Moodle AS INSTALLED
+
+- name: "Set 'moodle_installed: True'"
+  set_fact:
+    moodle_installed: True
+
 - name: "Add 'moodle_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/mosquitto/tasks/install.yml

@@ -5,7 +5,6 @@
   with_items:
     - mosquitto
     - mosquitto-clients
-  #tags: download
 
 - name: Disable & Stop 'mosquitto' service
   systemd:
@@ -30,6 +29,13 @@
     group: root
     mode: '0755'
 
+
+# RECORD Mosquitto AS INSTALLED
+
+- name: "Set 'mosquitto_installed: True'"
+  set_fact:
+    mosquitto_installed: True
+
 - name: "Add 'mosquitto_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/munin/tasks/apache.yml

@@ -1,6 +1,6 @@
 - name: Enable http://box/munin via Apache
   command: a2ensite munin24.conf
-  when: munin_enabled
+  when: munin_enabled | bool
 
 - name: Disable http://box/munin via Apache
   command: a2dissite munin24.conf

roles/munin/tasks/install.yml

@@ -26,7 +26,7 @@
     # mode: 0644
   with_items:
     - { src: 'munin.conf.j2', dest: '/etc/munin/munin.conf' }
-    - { src: 'munin24.conf.j2', dest: '/etc/{{ apache_config_dir }}/munin24.conf' }
+    - { src: 'munin24.conf.j2', dest: '/etc/{{ apache_conf_dir }}/munin24.conf' }
 
 - name: Establish username/password Admin/changeme in /etc/munin/munin-htpasswd
   htpasswd:
@@ -48,6 +48,13 @@
     - /usr/share/munin/plugins/mysql_threads
   when: mysql_enabled | bool
 
+
+# RECORD Munin AS INSTALLED
+
+- name: "Set 'munin_installed: True'"
+  set_fact:
+    munin_installed: True
+
 - name: "Add 'munin_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/munin/tasks/main.yml

@@ -19,7 +19,7 @@
     quiet: yes
 
 
-- name: Install Munin if 'munin_installed' is not defined in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
+- name: Install Munin if 'munin_installed' not defined, e.g. in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
   include_tasks: install.yml
   when: munin_installed is undefined
 
@@ -59,7 +59,7 @@
       value: Munin
     - option: description
       value: '"Munin is a networked resource monitoring tool that can help analyze resource trends and ''what just happened to kill our performance?'' problems."'
-    - option: installed
+    - option: install
       value: "{{ munin_install }}"
     - option: enabled
       value: "{{ munin_enabled }}"

roles/munin/tasks/nginx.yml

@@ -2,7 +2,7 @@
   template:
     src: munin24-nginx.conf.j2
     dest: "{{ nginx_conf_dir }}/munin24-nginx.conf"    # /etc/nginx/conf.d
-  when: munin_enabled
+  when: munin_enabled | bool
 
 - name: Disable http://box/munin via NGINX, by installing {{ nginx_conf_dir }}/munin24-nginx.conf
   file:

roles/mysql/tasks/main.yml

@@ -1,9 +1,9 @@
 # TO DO:
 # - Validate input vars mysql_install & mysql_enabled
-# - Put ~12 stanzas just below into install.yml
+# - Put ~13 stanzas just below into install.yml
 #   - Triggered by... 'when: mysql_installed is undefined'
 #   - Eliminate stale Fedora/CentOS code & gratuitous when: is_debuntu clauses?
-# - Consider putting ~8 stanzas below that into enable.yml or similar?
+# - Put ~8 stanzas below that into enable-or-disable.yml
 
 - name: 'Install MySQL packages: mariadb-server, mariadb-client, and 8 php packages (debuntu)'
   package:
@@ -114,6 +114,13 @@
     # line: "TimeoutStartSec=180"
   when: mariadb_unit_file.stat.exists
 
+
+# RECORD MySQL AS INSTALLED
+
+- name: "Set 'mysql_installed: True'"
+  set_fact:
+    mysql_installed: True
+
 - name: "Add 'mysql_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/network/tasks/computed_network.yml

@@ -178,7 +178,6 @@
     regexp: '^IIAB_WAN_DEVICE=*'
     line: 'IIAB_WAN_DEVICE="{{ iiab_wan_iface }}"'
   when: not installing   #REMOVE THIS LINE IF installing IS ALWAYS false AS SET IN roles/0-init/defaults/main.yml
-  #tags: network
 
 - name: Record IIAB_LAN_DEVICE to {{ iiab_env_file }}
   lineinfile:
@@ -187,7 +186,6 @@
     line: 'IIAB_LAN_DEVICE="{{ iiab_lan_iface }}"'
     state: present
   when: not installing   #REMOVE THIS LINE IF installing IS ALWAYS false AS SET IN roles/0-init/defaults/main.yml
-  #tags: network
 
 - name: Add 'computed_network' variable values to {{ iiab_ini_file }}
   ini_file:

roles/network/tasks/dansguardian.yml

@@ -2,7 +2,6 @@
   package:
     name: dansguardian
     state: present
-  #tags: download
 
 - name: Install /etc/dansguardian/dansguardian.conf from template (Fedora)
   template:

roles/network/tasks/ifcfg_mods.yml

@@ -84,7 +84,6 @@
     src: network/wifi-slave.j2
     dest: "/etc/sysconfig/network-scripts/ifcfg-{{ iiab_wireless_lan_iface }}"
   when: iiab_lan_iface == "br0" and iiab_wireless_lan_iface != "none"
-  #tags: network
 
 - include_tasks: enable_wan.yml
   when: not installing and not iiab_demo_mode

roles/network/tasks/main.yml

@@ -1,6 +1,5 @@
 - include_tasks: detected_network.yml
   when: not installing    # REMOVE THIS LINE IF installing IS ALWAYS false AS SET IN roles/0-init/defaults/main.yml
-  #tags: network, network-discover    # REMOVE SUCH LINES (BELOW TOO) AS WE'RE IN "network" ?
 
 - name: IF WIFI IS PRIMARY GATEWAY, PLEASE RUN 'iiab-hotspot-on' MANUALLY
   set_fact:
@@ -27,10 +26,8 @@
 
 - include_tasks: computed_network.yml
   when: not installing   #REMOVE THIS LINE IF installing IS ALWAYS false AS SET IN roles/0-init/defaults/main.yml
-  #tags: network, network-discover
 
 - include_tasks: hostapd.yml
-  #tags: network, AP
 
 #- name: RPi - don't reboot to AP post install - installed via wifi - don't blow away current network
 #  set_fact:
@@ -44,12 +41,10 @@
 ##### End static ip address info
 
 #- include_tasks: hosts.yml
-#  tags: network, hostname, domain
 
 - name: Configure wondershaper
   include_tasks: wondershaper.yml
   when: wondershaper_install or wondershaper_installed is defined
-  #tags: network, wondershaper
 
 - name: (Re)Install named
   include_tasks: named.yml
@@ -63,56 +58,48 @@
   include_tasks: squid.yml
   when: squid_install and FQDN_changed and iiab_stage|int == 9
 
-#### start services
+#### Start services
+
 - include_tasks: avahi.yml
-  #tags: network
-
 - include_tasks: computed_services.yml
-  #tags: network, named, dhcpd, dnsmasq, squid
-
 - include_tasks: enable_services.yml
-  #tags: network, named, dhcpd, dnsmasq, squid
 
-#### end services
+#### End services
+
 #### Start network layout
+
 - name: Redhat networking
   include_tasks: ifcfg_mods.yml
   when: is_redhat | bool
   #and not installing
-  #tags: network
 
 - name: Netplan in use on Ubuntu 18.04+
   include_tasks: netplan.yml
   when: is_ubuntu and not is_ubuntu_16
   #when: is_ubuntu_18 | bool
   #and not installing
-  #tags: network
 
 - name: NetworkManager in use
   include_tasks: NM-debian.yml
   when: is_debuntu and network_manager_active
   #and not installing
-  #tags: network
 
 - name: systemd-networkd in use
   include_tasks: sysd-netd-debian.yml
   when: is_debuntu and systemd_networkd_active
   #and not installing
-  #tags: network
 
 - name: RPi's have dhcpcd in use
   include_tasks: rpi_debian.yml
   when: is_debuntu and is_rpi
   #and not installing
-  #tags: network
 
 - name: Not RPi, Not NetworkManager, Not systemd-networkd in use
   include_tasks: debian.yml
   when: (not is_rpi and not network_manager_active and not systemd_networkd_active and is_debuntu) or is_ubuntu_16
   #and not installing
-  #tags: network
 
 #### end network layout
+
 - include_tasks: restart.yml
-  when: not installing
-  #tags: network, named, dhcpd, dnsmasq, squid, AP
+  when: not installing    # REMOVE THIS LINE IF installing IS ALWAYS false AS SET IN roles/0-init/defaults/main.yml

roles/network/tasks/named.yml

@@ -70,11 +70,11 @@
     dest: "/etc/systemd/system/{{ dns_service }}.service"
     mode: '0644'
 
-- name: "Install /etc/{{ apache_config_dir }}/dns-jail.conf from template: dns-jail redirect requires the named.blackhole, disabling recursion (if dns_jail_enabled)"
+- name: "Install /etc/{{ apache_conf_dir }}/dns-jail.conf from template: dns-jail redirect requires the named.blackhole, disabling recursion (if dns_jail_enabled)"
 #        in named-iiab.conf, and the redirection of 404 error documents to /
   template:
     src: roles/network/templates/named/dns-jail.conf
-    dest: "/etc/{{ apache_config_dir }}/"
+    dest: "/etc/{{ apache_conf_dir }}/"
   when: dns_jail_enabled | bool
 
 - name: "Add 'named_installed: True' to {{ iiab_state_file }}"

roles/nextcloud/tasks/apache.yml

@@ -0,0 +1,12 @@
+- name: Enable http://box{{ nextcloud_url }} via Apache    # http://box/nextcloud
+  command: a2ensite nextcloud.conf
+  when: nextcloud_enabled | bool
+
+- name: Disable http://box{{ nextcloud_url }} via Apache    # http://box/nextcloud
+  command: a2dissite nextcloud.conf
+  when: not nextcloud_enabled
+
+- name: Restart '{{ apache_service }}' systemd service
+  systemd:
+    name: "{{ apache_service }}"    # apache2 or httpd, as set in /opt/iiab/iiab/vars/<OS>.yml
+    state: restarted

roles/nextcloud/tasks/enable.yml

@@ -1,58 +0,0 @@
-# Apache
-
-- name: Enable http://box{{ nextcloud_url }} via Apache    # http://box/nextcloud
-  command: a2ensite nextcloud.conf
-  when: apache_install and nextcloud_enabled
-
-- name: Disable http://box{{ nextcloud_url }} via Apache    # http://box/nextcloud
-  command: a2dissite nextcloud.conf
-  when: apache_install and not nextcloud_enabled
-
-- name: Restart Apache systemd service ({{ apache_service }})
-  systemd:
-    name: "{{ apache_service }}"
-    state: restarted
-  when: apache_enabled | bool
-
-# NGINX
-
-- name: "SHIM: Enable http://box{{ nextcloud_url }} via NGINX, by installing {{ nginx_conf_dir }}/nextcloud-nginx.conf from template"    # http://box/nextcloud
-  template:
-    src: nextcloud-nginx.conf.j2
-    dest: "{{ nginx_conf_dir }}/nextcloud-nginx.conf"
-  when: nginx_install and nextcloud_enabled
-
-- name: "SHIM: Disable http://box{{ nextcloud_url }} via NGINX, by removing {{ nginx_conf_dir }}/nextcloud-nginx.conf"    # http://box/nextcloud
-  file:
-    path: "{{ nginx_conf_dir }}/nextcloud-nginx.conf"
-    state: absent
-  when: nginx_install and not nextcloud_enabled
-
-- name: Restart 'nginx' systemd service
-  systemd:
-    name: nginx
-    state: restarted
-  when: nginx_enabled | bool
-
-
-- name: Add 'nextcloud' variable values to {{ iiab_ini_file }}
-  ini_file:
-    path: "{{ iiab_ini_file }}"
-    section: Nextcloud
-    option: "{{ item.option }}"
-    value: "{{ item.value | string }}"
-  with_items:
-    - option: name
-      value: Nextcloud
-    - option: description
-      value: '"NextCloud is a local server-based facility for sharing files, photos, contacts, calendars, etc."'
-    - option: path
-      value: "{{ nextcloud_prefix }}/nextcloud"
-    #- option: nextcloud_force_install
-    #  value: "{{ nextcloud_force_install }}"
-    - option: nextcloud_orig_src_file
-      value: "{{ nextcloud_orig_src_file }}"
-    - option: nextcloud_src_file
-      value: "{{ nextcloud_src_file }}"
-    - option: nextcloud_enabled
-      value: "{{ nextcloud_enabled }}"

roles/nextcloud/tasks/install.yml

@@ -105,23 +105,23 @@
   # NOT NEC TO TEST FOR is_raspbian_8 OR is_raspbian_9 AS /opt/iiab/iiab/vars/<OS>.yml
   # DEFINES THESE AS SUBSETS OF is_debian_8 OR is_debian_9 (FOR NOW!)
 
-# we need to install the rpm in order to get the dependencies
-# but we only need to do this the first time
-
-- name: Install 7 php packages (redhat)
-  package:
-    name:
-      - php
-      - php-gd
-      - php-json
-      - php-mysql
-      - php-curl
-      - php-intl
-      - php-mcrypt
-      # CentOS does not have a package for php-imagick
-      #- php-imagick
-    state: present
-  when: is_redhat | bool
+## we need to install the rpm in order to get the dependencies
+## but we only need to do this the first time
+#
+#- name: Install 7 php packages (redhat)
+#  package:
+#    name:
+#      - php
+#      - php-gd
+#      - php-json
+#      - php-mysql
+#      - php-curl
+#      - php-intl
+#      - php-mcrypt
+#      # CentOS does not have a package for php-imagick
+#      #- php-imagick
+#    state: present
+#  when: is_redhat | bool
 
 - name: Unarchive {{ nextcloud_src_file_old }} to permanent location {{ nextcloud_prefix }}/nextcloud on older OS's lacking PHP 7.1+    # i.e. unpack nextcloud_latest-15.tar.bz2 to /opt/nextcloud
   unarchive:
@@ -139,32 +139,32 @@
   when: php_new | bool
   #when: nextcloud_force_install and not (is_debian_9 or is_raspbian_9 or is_ubuntu_16)
 
-- name: Create dir /etc/nextcloud (centos) for a subsequent config dir that's symlinked to /etc/nextcloud ?
-  file:
-    path: /etc/nextcloud
-    state: directory
-  when: is_centos | bool
-
-- name: Install {{ nextcloud_prefix }}/nextcloud/config/autoconfig.php from template (centos)
-  template:
-    src: autoconfig.php.j2
-    dest: "{{ nextcloud_prefix }}/nextcloud/config/autoconfig.php"
-    owner: "{{ apache_user }}"
-    group: "{{ apache_user }}"
-    mode: '0640'
-  when: is_centos | bool
+#- name: Create dir /etc/nextcloud (centos) for a subsequent config dir that's symlinked to /etc/nextcloud ?
+#  file:
+#    path: /etc/nextcloud
+#    state: directory
+#  when: is_centos | bool
+#
+#- name: Install {{ nextcloud_prefix }}/nextcloud/config/autoconfig.php from template (centos)
+#  template:
+#    src: autoconfig.php.j2
+#    dest: "{{ nextcloud_prefix }}/nextcloud/config/autoconfig.php"
+#    owner: "{{ apache_user }}"
+#    group: "{{ apache_user }}"
+#    mode: '0640'
+#  when: is_centos | bool
 
 - name: chown -R {{ apache_user }}:{{ apache_user }} {{ nextcloud_prefix }}/nextcloud
   file:
-    path: "{{ nextcloud_prefix }}/nextcloud"
+    path: "{{ nextcloud_prefix }}/nextcloud"    # /opt
     owner: "{{ apache_user }}"
     group: "{{ apache_user }}"
     recurse: yes
     state: directory
 
-- name: Create data directory {{ nextcloud_data_dir }}    # /opt/nextcloud/data
+- name: Create data directory {{ nextcloud_data_dir }}
   file:
-    path: "{{ nextcloud_data_dir }}"
+    path: "{{ nextcloud_data_dir }}"    # /opt/nextcloud/data
     owner: "{{ apache_user }}"
     group: "{{ apache_user }}"
     mode: '0750'
@@ -173,7 +173,18 @@
 - name: Install Apache's nextcloud.conf from template, for http://box/nextcloud
   template:
     src: nextcloud.conf.j2
-    dest: "/etc/{{ apache_config_dir }}/nextcloud.conf"
+    dest: "/etc/{{ apache_conf_dir }}/nextcloud.conf"
+
+
+- name: Provision Nextcloud's MySQL DB, run Nextcloud's install wizard etc
+  include_tasks: setup.yml
+
+
+# RECORD Nextcloud AS INSTALLED
+
+- name: "Set 'nextcloud_installed: True'"
+  set_fact:
+    nextcloud_installed: True
 
 - name: "Add 'nextcloud_installed: True' to {{ iiab_state_file }}"
   lineinfile:

roles/nextcloud/tasks/main.yml

@@ -1,18 +1,57 @@
-- name: Does /opt/nextcloud/version.php exist?
-  stat:
-    path: "{{ nextcloud_prefix }}/nextcloud/version.php"
-  register: nextcloud_page
+# "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
 
-- name: FORCE INSTALL OR REINSTALL OR UPGRADE IF {{ nextcloud_prefix }}/nextcloud/version.php DOESN'T EXIST
-  #set_fact:
-  #  nextcloud_force_install: True
+# 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 "nextcloud_install is sameas true" (boolean not string etc)
+  assert:
+    that: nextcloud_install is sameas true
+    fail_msg: "PLEASE SET 'nextcloud_install: True' e.g. IN: /etc/iiab/local_vars.yml"
+    quiet: yes
+
+- name: Assert that "nextcloud_enabled | type_debug == 'bool'" (boolean not string etc)
+  assert:
+    that: nextcloud_enabled | type_debug == 'bool'
+    fail_msg: "PLEASE GIVE VARIABLE 'nextcloud_enabled' A PROPER (UNQUOTED) ANSIBLE BOOLEAN VALUE e.g. IN: /etc/iiab/local_vars.yml"
+    quiet: yes
+
+
+- name: Install Nextcloud if 'nextcloud_installed' not defined, e.g. in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
   include_tasks: install.yml
-  when: nextcloud_install and (not nextcloud_installed is defined or not nextcloud_page.stat.exists)
+  when: nextcloud_installed is undefined
+#
+# ABOVE install.yml RUNS setup.yml
 
-- name: Provision Nextcloud's MySQL DB, run Nextcloud's install wizard, etc
-  include_tasks: setup.yml
-  when: nextcloud_install and not installing
 
-- name: Enable or disable Nextcloud
-  include_tasks: enable.yml
-  when: nextcloud_install or nextcloud_installed is defined
+#- name: Enable/Disable/Restart Apache if primary
+- name: SHIM FOR NOW SO ALWAYS DO THE...Enable/Disable/Restart Apache
+  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 'nextcloud' variable values to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: Nextcloud
+    option: "{{ item.option }}"
+    value: "{{ item.value | string }}"
+  with_items:
+    - option: name
+      value: Nextcloud
+    - option: description
+      value: '"Nextcloud is a local server-based facility for sharing files, photos, contacts, calendars, etc."'
+    - option: path
+      value: "{{ nextcloud_prefix }}/nextcloud"
+    - option: nextcloud_orig_src_file
+      value: "{{ nextcloud_orig_src_file }}"
+    - option: nextcloud_src_file
+      value: "{{ nextcloud_src_file }}"
+    - option: nextcloud_enabled
+      value: "{{ nextcloud_enabled }}"

roles/nextcloud/tasks/nginx.yml

@@ -0,0 +1,16 @@
+- name: "SHIM: Enable http://box{{ nextcloud_url }} via NGINX, by installing {{ nginx_conf_dir }}/nextcloud-nginx.conf from template"    # http://box/nextcloud
+  template:
+    src: nextcloud-nginx.conf.j2
+    dest: "{{ nginx_conf_dir }}/nextcloud-nginx.conf"    # /etc/nginx/conf.d
+  when: nextcloud_enabled | bool
+
+- name: "SHIM: Disable http://box{{ nextcloud_url }} via NGINX, by removing {{ nginx_conf_dir }}/nextcloud-nginx.conf"    # http://box/nextcloud
+  file:
+    path: "{{ nginx_conf_dir }}/nextcloud-nginx.conf"    # /etc/nginx/conf.d
+    state: absent
+  when: not nextcloud_enabled
+
+- name: Restart 'nginx' systemd service
+  systemd:
+    name: nginx
+    state: restarted

roles/nginx/tasks/install.yml

@@ -43,6 +43,13 @@
     state: restarted
   when: nginx_enabled
 
+
+# RECORD NGINX AS INSTALLED
+
+- name: "Set 'nginx_installed: True'"
+  set_fact:
+    nginx_installed: True
+
 - name: "Add 'nginx_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/nodejs/tasks/main.yml

@@ -150,6 +150,13 @@
 # thankfully; currently both offer Node.js 10.15.2
 
 
+
+# 3. RECORD Node.js AS INSTALLED
+
+- name: "Set 'nodejs_installed: True'"
+  set_fact:
+    nodejs_installed: True
+
 - name: "Add 'nodejs_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/nodered/tasks/install.yml

@@ -1,10 +1,33 @@
 # 2019-01-16: @jvonau's PR #1403 moved installation of Node.js (8.x for now) &
 # npm to roles/nodejs/tasks/main.yml
 
+- debug:
+    var: nodejs_install
+- debug:
+    var: nodejs_enabled
+- debug:
+    var: nodejs_installed
+
+- name: "Set 'nodejs_install: True' and 'nodejs_enabled: True'"
+  set_fact:
+    nodejs_install: True
+    nodejs_enabled: True
+
+# 2020-01-04 no longer triggered by roles/nodered/meta/main.yml
 - name: NODEJS - run the 'nodejs' role
   include_role:
     name: nodejs
-# 2020-01-04 no longer triggered by roles/nodered/meta/main.yml
+
+- name: FAIL (STOP THE INSTALL) IF nodejs_installed is undefined
+  fail:
+    msg: "Sugarizer install cannot proceed, as Node.js failed to install."
+  when: nodejs_installed is undefined
+
+- name: FAIL (STOP THE INSTALL) IF nodejs_version != "12.x"
+  fail:
+    msg: "Sugarizer install cannot proceed, as it currently requires Node.js 12.x, and your nodejs_version appears to be {{ nodejs_version }}.  Please check the value of nodejs_version in /opt/iiab/iiab/vars/default_vars.yml, /etc/iiab/local_vars.yml, /opt/iiab/iiab/roles/nodejs, etc!"
+  when: nodejs_version != "12.x"
+
 
 # BRUTAL but ensures consistency across OS's / distros like Raspbian Desktop &
 # Ubermix that often include an older version of Node-RED.  Brutal, as this
@@ -85,11 +108,11 @@
     dest: /etc/systemd/system/nodered.service
     # mode: '0666'
 
-- name: Install /etc/{{ apache_config_dir }}/nodered.conf from template
+- name: Install /etc/{{ apache_conf_dir }}/nodered.conf from template
   template:
     backup: yes
     src: nodered.conf.j2
-    dest: "/etc/{{ apache_config_dir }}/nodered.conf"
+    dest: "/etc/{{ apache_conf_dir }}/nodered.conf"
     # mode: '0666'
 
 # SEE ALSO THE apache2_module SECTION IN roles/httpd/tasks/main.yml
@@ -98,6 +121,13 @@
     state: present
     name: proxy_wstunnel
 
+
+# RECORD Node-RED AS INSTALLED
+
+- name: "Set 'nodered_installed: True'"
+  set_fact:
+    nodered_installed: True
+
 - name: "Add 'nodered_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/openvpn/tasks/main.yml

@@ -1,4 +1,4 @@
-# TO DO: WRAP 11 OR 12 STANZAS BELOW INTO install.yml, conditioned by...
+# TO DO: WRAP 12 OR 13 STANZAS BELOW INTO install.yml, conditioned by...
 # 'when: openvpn_installed is undefined'
 #
 # BEWARE: 4th stanza (ssh pubkey deletions) is already conditioned by...
@@ -107,6 +107,13 @@
     path: /usr/bin/iiab-vpn-off
     state: link
 
+
+# RECORD OpenVPN AS INSTALLED
+
+- name: "Set 'openvpn_installed: True'"
+  set_fact:
+    openvpn_installed: True
+
 - name: "Add 'openvpn_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
@@ -114,7 +121,7 @@
     line: 'openvpn_installed: True'
 
 
-# TO DO: WRAP COMMENTS + 4 ACTIVE STANZAS BELOW INTO enable.yml...
+# TO DO: WRAP COMMENTS + 4 ACTIVE STANZAS BELOW INTO enable-or-disable.yml...
 
 # FIXED SOMETIME PRIOR TO AUGUST 2018: earlier versions of Ansible had not
 # been working with systemd service names that contained the "@" character.
@@ -208,7 +215,7 @@
   - option: name
     value: OpenVPN
   - option: description
-    value: "OpenVPN enables live/remote support by connecting machines anywhere on the Internet, via a middleman server, using Virtual Private Network (VPN) techniques to create secure connections."
+    value: '"OpenVPN enables live/remote support by connecting machines anywhere on the Internet, via a middleman server, using Virtual Private Network (VPN) techniques to create secure connections."'
   - option: enabled
     value: "{{ openvpn_enabled }}"
 # openvpn_handle variable can no longer be left completely undefined of August 2018 (EMPTY STRING "" IS TOLERATED, in which case OpenVPN server should use /etc/iiab/uuid in lieu of the handle)

roles/osm-vector-maps/tasks/install.yml

@@ -67,6 +67,12 @@
     dest: "{{ vector_map_path }}/index.html"    # /library/www/osm-vector-maps
 
 
+# RECORD OSM Vector Maps AS INSTALLED
+
+- name: "Set 'osm_vector_maps_installed: True'"
+  set_fact:
+    osm_vector_maps_installed: True
+
 - name: "Add 'osm_vector_maps_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/osm-vector-maps/tasks/main.yml

@@ -19,7 +19,7 @@
     quiet: yes
 
 
-- name: Install OSM Vector Maps if 'osm_vector_maps_installed' is not defined in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
+- name: Install OSM Vector Maps if 'osm_vector_maps_installed' not defined, e.g. in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
   include_tasks: install.yml
   when: osm_vector_maps_installed is undefined
 
@@ -43,7 +43,7 @@
       value: OSM Vector Maps
     - option: description
       value: '"OpenStreetMap is like Google Maps but better, for schools especially, as it works offline and avoids all the advertising.  Download detailed ''vector maps'' for an entire continent, or the entire world!  Also includes 10+ zoom levels of satellite imagery!"'
-    - option: installed
+    - option: install
       value: "{{ osm_vector_maps_install }}"
     - option: enabled
       value: "{{ osm_vector_maps_enabled }}"

roles/osm-vector-maps/tasks/nginx.yml

@@ -1,12 +1,12 @@
 - name: Enable http://box/maps & http://box/osm-vector-maps via NGINX, by installing {{ nginx_conf_dir }}/osm-vector-maps-nginx.conf from template
   template:
     src: osm-vector-maps-nginx.conf.j2
-    dest: "{{ nginx_conf_dir }}/osm-vector-maps-nginx.conf"
+    dest: "{{ nginx_conf_dir }}/osm-vector-maps-nginx.conf"    # /etc/nginx/conf.d
   when: osm_vector_maps_enabled | bool
 
 - name: Disable http://box/maps & http://box/osm-vector-maps via NGINX, by removing {{ nginx_conf_dir }}/osm-vector-maps-nginx.conf
   file:
-    path: "{{ nginx_conf_dir }}/osm-vector-maps-nginx.conf"
+    path: "{{ nginx_conf_dir }}/osm-vector-maps-nginx.conf"    # /etc/nginx/conf.d
     state: absent
   when: not osm_vector_maps_enabled
 

roles/pbx/tasks/main.yml

@@ -1,7 +1,24 @@
+- debug:
+    var: nodejs_install
+- debug:
+    var: nodejs_enabled
+- debug:
+    var: nodejs_installed
+
+- name: "Set 'nodejs_install: True' and 'nodejs_enabled: True'"
+  set_fact:
+    nodejs_install: True
+    nodejs_enabled: True
+
 - name: NODEJS - run the 'nodejs' role
   include_role:
     name: nodejs
 
+- name: FAIL (STOP THE INSTALL) IF nodejs_installed is undefined
+  fail:
+    msg: "PBX install cannot proceed, as Node.js failed to install."
+  when: nodejs_installed is undefined
+
 - name: Fail if nodejs_version is incorrect
   fail:
     msg: >-
@@ -49,3 +66,16 @@
 - name: Asterisk - Install chan_dongle
   include: chan_dongle.yml
   when: asterisk_chan_dongle | bool
+
+
+# RECORD PBX AS INSTALLED
+
+- name: "Set 'pbx_installed: True'"
+  set_fact:
+    pbx_installed: True
+
+- name: "Add 'pbx_installed: True' to {{ iiab_state_file }}"
+  lineinfile:
+    dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
+    regexp: '^pbx_installed'
+    line: 'pbx_installed: True'

roles/phpmyadmin/tasks/main.yml

@@ -45,6 +45,19 @@
 #   #  recurse: yes
 #   #  state: directory
 
+- name: Install /etc/{{ apache_conf_dir }}/phpmyadmin.conf from template, if phpmyadmin_enabled
+  template:
+    src: phpmyadmin.j2
+    dest: "/etc/{{ apache_conf_dir }}/phpmyadmin.conf"
+  when: apache_install | bool
+
+
+# RECORD phpMyAdmin AS INSTALLED
+
+- name: "Set 'phpmyadmin_installed: True'"
+  set_fact:
+    phpmyadmin_installed: True
+
 - name: "Add 'phpmyadmin_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
@@ -52,24 +65,13 @@
     line: 'phpmyadmin_installed: True'
 
 
-- name: Install /etc/{{ apache_config_dir }}/phpmyadmin.conf from template, if phpmyadmin_enabled
-  template:
-    src: phpmyadmin.j2
-    dest: "/etc/{{ apache_config_dir }}/phpmyadmin.conf"
-  when: phpmyadmin_enabled | bool
+- name: Enable phpMyAdmin via Apache, if phpmyadmin_enabled
+  command: a2ensite phpmyadmin.conf
+  when: apache_install and phpmyadmin_enabled
 
-- name: Create symlink phpmyadmin.conf from sites-enabled to sites-available (debuntu)
-  file:
-    src: /etc/apache2/sites-available/phpmyadmin.conf
-    path: /etc/apache2/sites-enabled/phpmyadmin.conf
-    state: link
-  when: phpmyadmin_enabled and is_debuntu
-
-- name: Remove /etc/apache2/sites-enabled/phpmyadmin.conf, if not phpmyadmin_enabled (debuntu)
-  file:
-    path: /etc/apache2/sites-enabled/phpmyadmin.conf
-    state: absent
-  when: not phpmyadmin_enabled and is_debuntu
+- name: Disable phpMyAdmin via Apache, if not phpmyadmin_enabled
+  command: a2dissite phpmyadmin.conf
+  when: apache_install and not phpmyadmin_enabled
 
 
 - name: Add 'phpmyadmin' variable values to {{ iiab_ini_file }}

roles/postgresql/tasks/main.yml

@@ -1,6 +1,6 @@
 # TO DO:
 # - Validate input vars postgresql_install & postgresql_enabled
-# - Put ~12 stanzas just below into install.yml
+# - Put ~13 stanzas just below into install.yml
 #   - Triggered by... 'when: postgresql_installed is undefined'
 
 - name: Install 'postgresql' package
@@ -85,6 +85,13 @@
     state: stopped
     enabled: no
 
+
+# RECORD PostgreSQL AS INSTALLED
+
+- name: "Set 'postgresql_installed: True'"
+  set_fact:
+    postgresql_installed: True
+
 - name: "Add 'postgresql_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
@@ -118,7 +125,7 @@
       value: PostgreSQL
     - option: description
       value: '"PostgreSQL is a powerful, open source object-relational database system."'
-    - option: installed
+    - option: install
       value: "{{ postgresql_install }}"
     - option: enabled
       value: "{{ postgresql_enabled }}"

roles/samba/tasks/main.yml

@@ -21,51 +21,55 @@
       - samba-common
       - cifs-utils
     state: present
-  #tags: samba, download
 
 - name: Install /etc/samba/smb.conf from template
   template:
     src: smb.conf.j2
     dest: /etc/samba/smb.conf
 
+
+# RECORD Samba AS INSTALLED
+
+- name: "Set 'samba_installed: True'"
+  set_fact:
+    samba_installed: True
+
 - name: "Add 'samba_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
     regexp: '^samba_installed'
     line: 'samba_installed: True'
 
-- name: Enable & Start Samba systemd service
+
+- name: Enable & Start Samba systemd service ({{ smb_service }}) if samba_enabled
   service:
     name: "{{ smb_service }}"
     state: started
     enabled: yes
-  #tags: samba
   when: samba_enabled | bool
 
-- name: Enable & Start NetBIOS name server ({{ nmb_service }})
+- name: Enable & Start NetBIOS name service ({{ nmb_service }}) if samba_enabled
   service:
     name: "{{ nmb_service }}"
     state: started
     enabled: yes
-  #tags: samba
   when: samba_enabled | bool
 
-- name: Disable Samba if not samba_enabled
-  service:
+- name: Disable & Stop Samba systemd service ({{ smb_service }}) if not samba_enabled
+  systemd:
     name: "{{ smb_service }}"
     state: stopped
     enabled: no
-  #tags: samba
   when: not samba_enabled
 
-- name: Disable NetBIOS name server ({{ nmb_service }}) if not samba_enabled
-  service:
+- name: Disable & Stop NetBIOS name service ({{ nmb_service }}) if not samba_enabled
+  systemd:
     name: "{{ nmb_service }}"
     state: stopped
     enabled: no
-  #tags: samba
   when: not samba_enabled
 
+
 - name: Add 'samba' variable values to {{ iiab_ini_file }}
   ini_file:
     path: "{{ iiab_ini_file }}"

roles/sshd/tasks/main.yml

@@ -2,25 +2,24 @@
   package:
     name: "{{ sshd_package }}"
     state: present
-  when: sshd_enabled | bool
 
-- name: Disable root login with password
+- name: Disable password-based logins to root
   lineinfile:
     dest: /etc/ssh/sshd_config
     regexp: '^PermitRootLogin'
     line: 'PermitRootLogin without-password'
     state: present
-  when: sshd_enabled | bool
+  #when: sshd_enabled | bool
 #TODO: use handler to reload ssh
 
-- name: Create root .ssh
+- name: mkdir /root/.ssh
   file:
+    state: directory
     path: /root/.ssh
     owner: root
     group: root
-    mode: 0700
-    state: directory
-  when: sshd_enabled | bool
+    mode: '0700'
+  #when: sshd_enabled | bool
 
 - name: Install dummy root keys as placeholder
   copy:
@@ -28,19 +27,34 @@
     dest: /root/.ssh/authorized_keys
     owner: root
     group: root
-    mode: 0600
+    mode: '0600'
     force: no
-  when: sshd_enabled | bool
+  #when: sshd_enabled | bool
 
-- name: Enable & start ssh daemon
-  service:
+
+# RECORD sshd AS INSTALLED
+
+- name: "Set 'sshd_installed: True'"
+  set_fact:
+    sshd_installed: True
+
+- name: "Add 'sshd_installed: True' to {{ iiab_state_file }}"
+  lineinfile:
+    dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
+    regexp: '^sshd_installed'
+    line: 'sshd_installed: True'
+
+
+- name: Enable & Start ssh daemon ({{ sshd_service }}) if sshd_enabled
+  systemd:
     name: "{{ sshd_service }}"
+    daemon_reload: yes
     enabled: yes
     state: started
   when: sshd_enabled | bool
 
-- name: Disable ssh daemon
-  service:
+- name: Disable & Stop ssh daemon ({{ sshd_service }}) if not sshd_enabled
+  systemd:
     name: "{{ sshd_service }}"
     enabled: no
     state: stopped

roles/sugarizer/tasks/apache.yml

@@ -0,0 +1,12 @@
+- name: Enable http://box/sugarizer & http://box/sugar via Apache
+  command: a2ensite sugarizer.conf
+  when: sugarizer_enabled
+
+- name: Disable http://box/sugarizer & http://box/sugar via Apache
+  command: a2dissite sugarizer.conf
+  when: not sugarizer_enabled
+
+- name: Restart '{{ apache_service }}' systemd service
+  systemd:
+    name: "{{ apache_service }}"    # apache2 or httpd, as set in /opt/iiab/iiab/vars/<OS>.yml
+    state: restarted

roles/sugarizer/tasks/enable.yml

@@ -1,72 +0,0 @@
-# auto starts mongodb via the requires= line in unit file
-- name: Enable & Restart 'sugarizer' systemd service
-  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
-  systemd:
-    name: sugarizer
-    enabled: no
-    state: stopped
-  when: not sugarizer_enabled
-
-# stops mongodb would of been called via meta/main.yml prior
-- name: Run mongodb/tasks/enable.yml to stop MongoDB, if not sugarizer_enabled
-  include_tasks: roles/mongodb/tasks/enable.yml
-  when: not sugarizer_enabled
-
-# Apache
-
-- name: Enable http://box/sugarizer & http://box/sugar via Apache
-  command: a2ensite sugarizer.conf
-  when: apache_install and sugarizer_enabled
-
-- name: Disable http://box/sugarizer & http://box/sugar via Apache
-  command: a2dissite sugarizer.conf
-  when: apache_install and not sugarizer_enabled
-
-- name: Restart Apache systemd service ({{ apache_service }})
-  systemd:
-    name: "{{ apache_service }}"
-    state: restarted
-  when: apache_enabled | bool
-
-# NGINX
-
-- name: Enable http://box/sugarizer via NGINX, by installing {{ nginx_conf_dir }}/sugarizer-nginx.conf from template
-  template:
-    src: sugarizer-nginx.conf
-    dest: "{{ nginx_conf_dir }}/sugarizer-nginx.conf"
-  when: nginx_install and sugarizer_enabled
-
-- name: Disable http://box/sugarizer via NGINX, by removing {{ nginx_conf_dir }}/sugarizer-nginx.conf
-  file:
-    path: "{{ nginx_conf_dir }}/sugarizer-nginx.conf"
-    state: absent
-  when: nginx_install and not sugarizer_enabled
-
-- name: Restart 'nginx' systemd service
-  systemd:
-    name: nginx
-    state: restarted
-  when: nginx_enabled | bool
-
-
-- name: Add 'sugarizer' variable values to {{ iiab_ini_file }}
-  ini_file:
-    path: "{{ iiab_ini_file }}"
-    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 }}"

roles/sugarizer/tasks/install.yml

@@ -1,15 +1,61 @@
-- name: MONGODB - run the 'mongodb' role
-  include_role:
-    name: mongodb
+# 0. ATTEMPT INSTALL-THEN-ASSERT OF (1) HARD PREREQ Node.js (2) SOFT PREREQ MongoDB 
+
+- debug:
+    var: nodejs_install
+- debug:
+    var: nodejs_enabled
+- debug:
+    var: nodejs_installed
+
+- name: "Set 'nodejs_install: True' and 'nodejs_enabled: True'"
+  set_fact:
+    nodejs_install: True
+    nodejs_enabled: True
 
 - name: NODEJS - run the 'nodejs' role
   include_role:
     name: nodejs
 
-- name: FAIL (STOP INSTALLING) IF nodejs_version is not set to 12.x
+- name: FAIL (STOP THE INSTALL) IF nodejs_installed is undefined
   fail:
-    msg: "Sugarizer install cannot proceed, as it currently requires Node.js 12.x, and your nodejs_version is set to {{ nodejs_version }}.  Please check the value of nodejs_version in /opt/iiab/iiab/vars/default_vars.yml and possibly also /etc/iiab/local_vars.yml"
-  when: sugarizer_install and (nodejs_version != "12.x")
+    msg: "Sugarizer install cannot proceed, as Node.js failed to install."
+  when: nodejs_installed is undefined
+
+- name: FAIL (STOP THE INSTALL) IF nodejs_version != "12.x"
+  fail:
+    msg: "Sugarizer install cannot proceed, as it currently requires Node.js 12.x, and your nodejs_version appears to be {{ nodejs_version }}.  Please check the value of nodejs_version in /opt/iiab/iiab/vars/default_vars.yml, /etc/iiab/local_vars.yml, /opt/iiab/iiab/roles/nodejs, etc!"
+  when: nodejs_version != "12.x"
+
+
+- debug:
+    var: mongodb_install
+- debug:
+    var: mongodb_enabled
+- debug:
+    var: mongodb_installed
+
+- name: "Set 'mongodb_install: True' and 'mongodb_enabled: True'"
+  set_fact:
+    mongodb_install: True
+    mongodb_enabled: True
+
+- name: MONGODB - run the 'mongodb' role
+  include_role:
+    name: mongodb
+
+# 2020-01-29: FOR NOW LET'S TRY A VERY SOFT (BEST EFFORT) PREREQ, AS Sugarizer
+# TRADITIONALLY CAN WORK (?) EVEN WITHOUT MongoDB.  IF LATER WE INSTEAD WANT TO
+# ENFORCE MongoDB...AS A MEDIUM-STRENGTH PREREQ...OR AS A HARD (STRICT) PREREQ
+# ...THEN UNCOMMENT EITHER BELOW:
+#
+#- name: EXIT SUGARIZER PLAYBOOK (BUT CONTINUE INSTALLING IIAB) IF mongodb_installed is undefined
+#  meta: end_play
+#  when: mongodb_installed is undefined
+#
+#- name: FAIL (STOP THE INSTALL) IF mongodb_installed is undefined
+#  fail:
+#    msg: "Sugarizer install cannot proceed, as MongoDB failed to install."
+#  when: mongodb_installed is undefined
 
 
 # 1. DOWNLOAD+LINK /opt/iiab/sugarizer
@@ -149,7 +195,7 @@
     # mode: '0644'
   with_items:
     - { src: 'sugarizer.service', dest: '/etc/systemd/system/sugarizer.service' }
-    - { src: 'sugarizer.conf.j2', dest: "/etc/{{ apache_config_dir }}/sugarizer.conf" }
+    - { src: 'sugarizer.conf.j2', dest: "/etc/{{ apache_conf_dir }}/sugarizer.conf" }
     #- { src: 'sugarizer.ini.j2', dest: '{{ iiab_base }}/sugarizer-server/env/sugarizer.ini' }
     #- { src: 'sugarizer.js', dest: '{{ iiab_base }}/sugarizer-server' }
 
@@ -223,6 +269,13 @@
 #    # Use this instead, if tabs are truly nec:
 #    # block: "\tvar pathPrefix = '/sugarizer';\n\tapp.use(pathPrefix, require('path-prefix-proxy')(pathPrefix));"
 
+
+# 6. RECORD Sugarizer AS INSTALLED
+
+- name: "Set 'sugarizer_installed: True'"
+  set_fact:
+    sugarizer_installed: True
+
 - name: "Add 'sugarizer_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml

roles/sugarizer/tasks/main.yml

@@ -1,7 +1,70 @@
-- name: Install 'sugarizer' if sugarizer_install and not Debian 10+
-  include_tasks: install.yml
-  when: not sugarizer_installed is defined and sugarizer_install and not ((is_debian and not is_raspbian) and (not is_debian_8) and (not is_debian_9))
+# "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
 
-- name: Enable 'sugarizer' if sugarizer_enabled
-  include_tasks: enable.yml
-  when: (sugarizer_install or sugarizer_installed is defined) and not ((is_debian and not is_raspbian) and (not is_debian_8) and (not is_debian_9))
+# 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: Install Sugarizer if 'sugarizer_installed' not defined, e.g. 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 }}"

roles/sugarizer/tasks/nginx.yml

@@ -0,0 +1,16 @@
+- name: Enable http://box/sugarizer via NGINX, by installing {{ nginx_conf_dir }}/sugarizer-nginx.conf from template
+  template:
+    src: sugarizer-nginx.conf
+    dest: "{{ nginx_conf_dir }}/sugarizer-nginx.conf"    # /etc/nginx/conf.d
+  when: sugarizer_enabled | bool
+
+- name: Disable http://box/sugarizer via NGINX, by removing {{ nginx_conf_dir }}/sugarizer-nginx.conf
+  file:
+    path: "{{ nginx_conf_dir }}/sugarizer-nginx.conf"    # /etc/nginx/conf.d
+    state: absent
+  when: not sugarizer_enabled
+
+- name: Restart 'nginx' systemd service
+  systemd:
+    name: nginx
+    state: restarted

roles/transmission/tasks/main.yml

@@ -7,11 +7,11 @@
 
 - name: Create download dir {{ transmission_download_dir }}, owned by {{ transmission_user }}:{{ transmission_group }}
   file:
+    state: directory
     path: "{{ transmission_download_dir }}"    # /library/transmission
     owner: "{{ transmission_user }}"    # debian-transmission
     group: "{{ transmission_group }}"    # root
     # mode: '0755'
-    state: directory
 
 - name: Stop 'transmission-daemon' systemd service, before modifying its settings
   systemd:
@@ -23,9 +23,16 @@
   template:
     src: settings.json.j2
     dest: /etc/transmission-daemon/settings.json
-    # mode: '0644'
     owner: "{{ transmission_user }}"    # debian-transmission
     group: "{{ transmission_group }}"    # root
+    # mode: '0644'
+
+
+# RECORD Transmission AS INSTALLED
+
+- name: "Set 'transmission_installed: True'"
+  set_fact:
+    transmission_installed: True
 
 - name: "Add 'transmission_installed: True' to {{ iiab_state_file }}"
   lineinfile:
@@ -69,7 +76,7 @@
     value: "{{ item.value | string }}"
   with_items:
     - option: name
-      value: transmission
+      value: Transmission
     - option: description
       value: '"Transmission is a set of lightweight BitTorrent clients (in GUI, CLI and daemon form)."'
     - option: transmission_install

roles/usb_lib/tasks/main.yml

@@ -0,0 +1,109 @@
+# TO DO:
+# - validate input vars + prereqs
+# - move 6 top stanzas into install.yml
+# - move 6 mid/lower stanzas into enable-or-disable.yml
+# - verify analogous NGINX logic from roles/nginx/* -- then integrate as nec?
+
+- name: Add dir {{ doc_root }}/local_content, where USB drive links can appear
+  file:
+    state: directory
+    path: "{{ doc_root }}/local_content"
+    owner: "{{ apache_user }}"
+    group: "{{ iiab_admin_user }}"    # ISN'T "{{ apache_user }}" MORE APPROPRIATE?
+    mode: '0775'
+
+- name: 'Install from template: /etc/udev/rules.d/usbmount.rules, /etc/systemd/system/usbmount@.service, /usr/bin/iiab-usb_lib-show-all-on, /usr/bin/iiab-usb_lib-show-all-off'
+  template:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    mode: "{{ item.mode }}"
+  with_items:
+    - { src: 'usbmount@.service.j2' , dest: '/etc/systemd/system/usbmount@.service', mode: '0644' }
+    - { src: 'usbmount.rules.j2' , dest: '/etc/udev/rules.d/usbmount.rules', mode: '0644' }
+    - { src: 'iiab-usb_lib-show-all-on' , dest: '/usr/bin/', mode: '0755' }
+    - { src: 'iiab-usb_lib-show-all-off' , dest: '/usr/bin/', mode: '0755' }
+
+- name: Enable exFAT and NTFS in /etc/usbmount/usbmount.conf
+  lineinfile:
+    regexp: '^FILESYSTEMS.*'
+    line: 'FILESYSTEMS="vfat ext2 ext3 ext4 hfsplus exfat fuseblk ntfs"'
+    path: /etc/usbmount/usbmount.conf
+
+- name: Install /etc/{{ apache_conf_dir }}/content_dir.conf from template
+  template:
+    src: content_dir.conf
+    dest: "/etc/{{ apache_conf_dir }}"
+  when: apache_install
+
+
+# RECORD usb_lib AS INSTALLED
+
+- name: "Set 'usb_lib_installed: True'"
+  set_fact:
+    usb_lib_installed: True
+
+- name: "Add 'usb_lib_installed: True' to {{ iiab_state_file }}"
+  lineinfile:
+    dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
+    regexp: '^usb_lib_installed'
+    line: 'usb_lib_installed: True'
+
+
+- name: Install /etc/usbmount/mount.d/70-usb-library from template, if usb_lib_enabled
+  template:
+    src: mount.d/70-usb-library
+    dest: /etc/usbmount/mount.d/
+    owner: root
+    group: root
+    mode: '0751'
+  when: usb_lib_enabled | bool
+
+- name: Install /etc/usbmount/umount.d/70-usb-library from template, if usb_lib_enabled
+  template:
+    src: umount.d/70-usb-library
+    dest: /etc/usbmount/umount.d
+    owner: root
+    group: root
+    mode: '0751'
+  when: usb_lib_enabled | bool
+
+- name: Remove /etc/usbmount/mount.d/70-usb-library if not usb_lib_enabled
+  file:
+    path: /etc/usbmount/mount.d/70-usb-library
+    state: absent
+  when: not usb_lib_enabled
+
+- name: Remove /etc/usbmount/umount.d/70-usb-library if not usb_lib_enabled
+  file:
+    path: /etc/usbmount/umount.d/70-usb-library
+    state: absent
+  when: not usb_lib_enabled
+
+- name: Enable http://box/usb via Apache, if usb_lib_enabled
+  command: a2ensite content_dir.conf
+  when: apache_install and usb_lib_enabled
+
+- name: Disable http://box/usb via Apache, if not usb_lib_enabled
+  command: a2dissite content_dir.conf
+  when: apache_install and not usb_lib_enabled
+
+
+- name: Put variable in iiab.env that enables display of content at root of USB
+  lineinfile:
+    path: "{{ iiab_env_file }}"
+    regexp: "^IIAB_USB_LIB_SHOW_ALL.*"
+    line: "IIAB_USB_LIB_SHOW_ALL={{ iiab_usb_lib_show_all }}"
+
+- name: Add 'usb_lib' variable values to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"
+    section: usb_lib
+    option: "{{ item.option }}"
+    value: "{{ item.value | string }}"
+  with_items:
+    - option: name
+      value: usb_lib
+    - option: description
+      value: '"usb_lib automounts Teacher Content on USB drives to /library/www/html/local_content, so students can browse it almost immediately at http://box/usb"'
+    - option: enabled
+      value: "{{ usb_lib_enabled }}"

roles/usb_lib/tasks/main.yml~

@@ -1,21 +1,18 @@
+# TO DO:
+# - validate input vars + prereqs
+# - move 6 top stanzas into install.yml
+# - move 6 mid/lower stanzas into enable-or-disable.yml
+# - verify analogous NGINX logic from roles/nginx/* -- then integrate as nec?
+
 - name: Add dir {{ doc_root }}/local_content, where USB drive links can appear
   file:
-    path: "{{ doc_root }}/local_content"
     state: directory
+    path: "{{ doc_root }}/local_content"
     owner: "{{ apache_user }}"
     group: "{{ iiab_admin_user }}"    # ISN'T "{{ apache_user }}" MORE APPROPRIATE?
-    mode: 0775
+    mode: '0775'
 
-- name: Install /etc/usbmount/mount.d/70-usb-library from template
-  template:
-    src: mount.d/70-usb-library
-    dest: /etc/usbmount/mount.d/
-    owner: root
-    group: root
-    mode: 0751
-  when: usb_lib_enabled | bool
-
-- name: 'Install from template: /etc/udev/rules.d/usbmount.rules, /etc/systemd/system/usbmount@.service, /usr/bin/iiab-usb-lib-show-all-on, /usr/bin/iiab-usb-lib-show-all-off'
+- name: 'Install from template: /etc/udev/rules.d/usbmount.rules, /etc/systemd/system/usbmount@.service, /usr/bin/iiab-usb_lib-show-all-on, /usr/bin/iiab-usb_lib-show-all-off'
   template:
     src: "{{ item.src }}"
     dest: "{{ item.dest }}"
@@ -23,22 +20,51 @@
   with_items:
     - { src: 'usbmount@.service.j2' , dest: '/etc/systemd/system/usbmount@.service', mode: '0644' }
     - { src: 'usbmount.rules.j2' , dest: '/etc/udev/rules.d/usbmount.rules', mode: '0644' }
-    - { src: 'iiab-usb-lib-show-all-on' , dest: '/usr/bin/', mode: '0755' }
-    - { src: 'iiab-usb-lib-show-all-off' , dest: '/usr/bin/', mode: '0755' }
+    - { src: 'iiab-usb_lib-show-all-on' , dest: '/usr/bin/', mode: '0755' }
+    - { src: 'iiab-usb_lib-show-all-off' , dest: '/usr/bin/', mode: '0755' }
 
 - name: Enable exFAT and NTFS in /etc/usbmount/usbmount.conf
-  lineinfile: 
+  lineinfile:
     regexp: '^FILESYSTEMS.*'
     line: 'FILESYSTEMS="vfat ext2 ext3 ext4 hfsplus exfat fuseblk ntfs"'
     path: /etc/usbmount/usbmount.conf
 
-- name: Install /etc/usbmount/umount.d/70-usb-library from template
+- name: Install /etc/{{ apache_conf_dir }}/content_dir.conf from template
+  template:
+    src: content_dir.conf
+    dest: "/etc/{{ apache_conf_dir }}"
+  when: apache_install
+
+
+# RECORD usb_lib AS INSTALLED
+
+- name: "Set 'usb_lib_installed: True'"
+  set_fact:
+    usb_lib_installed: True
+
+- name: "Add 'usb_lib_installed: True' to {{ iiab_state_file }}"
+  lineinfile:
+    dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
+    regexp: '^usb_lib_installed'
+    line: 'usb_lib_installed: True'
+
+
+- name: Install /etc/usbmount/mount.d/70-usb-library from template, if usb_lib_enabled
+  template:
+    src: mount.d/70-usb-library
+    dest: /etc/usbmount/mount.d/
+    owner: root
+    group: root
+    mode: '0751'
+  when: usb_lib_enabled | bool
+
+- name: Install /etc/usbmount/umount.d/70-usb-library from template, if usb_lib_enabled
   template:
     src: umount.d/70-usb-library
     dest: /etc/usbmount/umount.d
     owner: root
     group: root
-    mode: 0751
+    mode: '0751'
   when: usb_lib_enabled | bool
 
 - name: Remove /etc/usbmount/mount.d/70-usb-library if not usb_lib_enabled
@@ -53,47 +79,31 @@
     state: absent
   when: not usb_lib_enabled
 
+- name: Enable http://box/usb via Apache, if usb_lib_enabled
+  shell: a2ensite content_dir.conf
+  when: apache_install and usb_lib_enabled
+
+- name: Disable http://box/usb via Apache, if not usb_lib_enabled
+  shell: a2dissite content_dir.conf
+  when: apache_install and not usb_lib_enabled
+
+
 - name: Put variable in iiab.env that enables display of content at root of USB
   lineinfile:
     path: "{{ iiab_env_file }}"
     regexp: "^IIAB_USB_LIB_SHOW_ALL.*"
     line: "IIAB_USB_LIB_SHOW_ALL={{ iiab_usb_lib_show_all }}"
 
-- name: Install /etc/{{ apache_config_dir }}/content_dir.conf from template
-  template:
-    src: content_dir.conf
-    dest: "/etc/{{ apache_config_dir }}"
-  when: usb_lib_enabled | bool
-
-- name: Create symlink content_dir.conf from sites-enabled to sites-available (debuntu)
-  file:
-    src: "/etc/{{ apache_config_dir }}/content_dir.conf"
-    dest: /etc/apache2/sites-enabled/content_dir.conf
-    state: link
-  when: is_debuntu | bool
-
-- name: Remove symlink content_dir.conf from /etc/apache2/sites-enabled (debuntu)
-  file:
-    dest: /etc/apache2/sites-enabled/content_dir.conf
-    state: absent
-  when: is_debuntu and not usb_lib_enabled
-
-- name: Remove content_dir.conf from /etc/{{ apache_config_dir }}
-  file:
-    name: "/etc/{{ apache_config_dir }}/content_dir.conf"
-    state: absent
-  when: not usb_lib_enabled
-
-- name: Add 'usb-lib' variable values to {{ iiab_ini_file }}
+- name: Add 'usb_lib' variable values to {{ iiab_ini_file }}
   ini_file:
     path: "{{ iiab_ini_file }}"
-    section: usb-lib
+    section: usb_lib
     option: "{{ item.option }}"
     value: "{{ item.value | string }}"
   with_items:
     - option: name
-      value: usb-lib
+      value: usb_lib
     - option: description
-      value: '"usb-lib automounts Teacher Content on USB drives to /library/www/html/local_content, so students can browse it almost immediately at http://box/usb"'
+      value: '"usb_lib automounts Teacher Content on USB drives to /library/www/html/local_content, so students can browse it almost immediately at http://box/usb"'
     - option: enabled
       value: "{{ usb_lib_enabled }}"

roles/vnstat/tasks/main.yml

@@ -2,7 +2,6 @@
   package:
     name: vnstat
     state: present
-  #tags: download
 
 - name: Install /etc/vnstat.conf from template
   template:
@@ -19,6 +18,13 @@
   shell: /usr/bin/vnstat -i {{ iiab_lan_iface }}
   when: iiab_lan_iface is defined
 
+
+# RECORD vnStat AS INSTALLED
+
+- name: "Set 'vnstat_installed: True'"
+  set_fact:
+    vnstat_installed: True
+
 - name: "Add 'vnstat_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml
@@ -26,7 +32,7 @@
     line: 'vnstat_installed: True'
 
 
-- name: Enable & Start vnStat's systemd service (vnstat)
+- name: Enable & (Re)Start 'vnstat' systemd service, if vnstat_enabled
   systemd:
     name: vnstat
     daemon_reload: yes
@@ -46,7 +52,7 @@
       value: vnStat
     - option: description
       value: '"vnStat is a console-based network traffic monitor for Linux and BSD that keeps a log of network traffic for the selected interface(s)."'
-    - option: installed
+    - option: install
       value: "{{ vnstat_install }}"
     - option: enabled
       value: "{{ vnstat_enabled }}"

roles/wordpress/tasks/apache.yml

@@ -1,6 +1,6 @@
 - name: Enable http://box{{ wp_url }} via Apache    # http://box/wordpress
   command: a2ensite wordpress.conf
-  when: wordpress_enabled
+  when: wordpress_enabled | bool
 
 - name: Disable http://box{{ wp_url }} via Apache    # http://box/wordpress
   command: a2dissite wordpress.conf

roles/wordpress/tasks/install.yml

@@ -85,12 +85,19 @@
     group: "{{ apache_user }}"    # DO WE REALLY STILL WANT THIS FOR NGINX?
     mode: '0660'    # Others strongly recommend '0600' (or do PHP/Apache/NGINX really need group read & write permissions?)
 
-- name: Install etc/{{ apache_config_dir }}/wordpress.conf from template, for http://box{{ wp_url }} via Apache
+- name: Install etc/{{ apache_conf_dir }}/wordpress.conf from template, for http://box{{ wp_url }} via Apache
   template:
     src: wordpress.conf.j2
-    dest: "/etc/{{ apache_config_dir }}/wordpress.conf"
+    dest: "/etc/{{ apache_conf_dir }}/wordpress.conf"
   when: apache_enabled | bool
 
+
+# RECORD WordPress AS INSTALLED
+
+- name: "Set 'wordpress_installed: True'"
+  set_fact:
+    wordpress_installed: True
+
 - name: "Add 'wordpress_installed: True' to {{ iiab_state_file }}"
   lineinfile:
     dest: "{{ iiab_state_file }}"    # /etc/iiab/iiab_state.yml