Merge pull request #3592 from holta/df

Record approx disk usage for 45 roles (to iiab.ini)

roles/awstats/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: 'Install package: awstats'
   package:
     name: awstats
@@ -93,6 +98,17 @@
 
 # RECORD AWStats AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'awstats_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: awstats
+    option: awstats_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'awstats_installed: True'"
   set_fact:
     awstats_installed: True

roles/azuracast/tasks/install.yml

@@ -25,6 +25,11 @@
 # 5. Run './runrole --reinstall azuracast' in /opt/iiab/iiab
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: AzuraCast - Make config directory {{ azuracast_host_dir }}
   file:
     path: "{{ azuracast_host_dir }}"
@@ -102,6 +107,17 @@
 
 # RECORD AzuraCast AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'azuracast_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: azuracast
+    option: azuracast_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'azuracast_installed: True'"
   set_fact:
     azuracast_installed: True

roles/calibre-web/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install packages: imagemagick, python3-netifaces"
   package:
     name:
@@ -110,6 +115,17 @@
 
 # RECORD Calibre-Web AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'calibreweb_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: calibre-web
+    option: calibreweb_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'calibreweb_installed: True'"
   set_fact:
     calibreweb_installed: True

roles/calibre/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 1. APT INSTALL CALIBRE 4.12+ or 5.12+ (calibre, calibredb, calibre-server etc) ON ALL OS'S
 
 - name: "Install OS's latest packages: calibre, calibre-bin"
@@ -79,6 +84,17 @@
 
 # 5. RECORD Calibre AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'calibre_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: calibre
+    option: calibre_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'calibre_installed: True'"
   set_fact:
     calibre_installed: True

roles/captiveportal/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install packages: python3-dateutil, python3-jinja2"
   package:
     name:
@@ -51,6 +56,17 @@
 
 # RECORD Captive Portal AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'captiveportal_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: captiveportal
+    option: captiveportal_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'captiveportal_installed: True'"
   set_fact:
     captiveportal_installed: True

roles/cups/tasks/install.yml

@@ -2,6 +2,11 @@
 # (OR ANY MEMBER OF LINUX GROUP 'lpadmin') AS SET UP BELOW...
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Install 'cups' package
   package:
     name: cups
@@ -124,6 +129,17 @@
 
 # RECORD CUPS AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'cups_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: cups
+    option: cups_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'cups_installed: True'"
   set_fact:
     cups_installed: True

roles/gitea/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 1. Prepare to install Gitea: create user and directory structure
 
 - name: Shut down existing Gitea instance (if we're reinstalling)
@@ -105,6 +110,17 @@
 
 # 5. RECORD Gitea AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'gitea_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: gitea
+    option: gitea_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'gitea_installed: True'"
   set_fact:
     gitea_installed: True

roles/gitea/tasks/main.yml

@@ -27,7 +27,7 @@
 
   - include_tasks: enable-or-disable.yml
 
-  - name: Add 'gitea' to list of services at {{ iiab_ini_file }}
+  - name: Add 'gitea' variable values to {{ iiab_ini_file }}
     ini_file:
       path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
       section: gitea

roles/iiab-admin/tasks/main.yml

@@ -2,6 +2,11 @@
 # https://github.com/iiab/iiab/blob/master/roles/iiab-admin/README.rst
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install text-mode packages, useful during remote access: lynx, screen"
   package:
     name:
@@ -35,6 +40,17 @@
 
 # RECORD iiab-admin AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'iiab_admin_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: iiab-admin
+    option: iiab_admin_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'iiab_admin_installed: True'"
   set_fact:
     iiab_admin_installed: True

roles/internetarchive/tasks/install.yml

@@ -30,6 +30,11 @@
     state: present
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 2. CREATE 2 DIRS, WIPE /opt/iiab/internetarchive/node_modules & RUN YARN
 
 - name: mkdir {{ internetarchive_dir }}
@@ -64,6 +69,17 @@
 
 # 4. RECORD Internet Archive AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'internetarchive_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: internetarchive
+    option: internetarchive_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'internetarchive_installed: True'"
   set_fact:
     internetarchive_installed: True

roles/jupyterhub/tasks/install.yml

@@ -13,6 +13,11 @@
   when: nodejs_installed is undefined
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install package: python3-psutil"
   package:
     name: python3-psutil
@@ -104,6 +109,17 @@
 
 # RECORD JupyterHub AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'jupyterhub_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: jupyterhub
+    option: jupyterhub_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'jupyterhub_installed: True'"
   set_fact:
     jupyterhub_installed: True

roles/kalite/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Download {{ kalite_requirements }} to {{ pip_packages_dir }}/kalite.txt
   get_url:
     url: "{{ kalite_requirements }}"
@@ -105,6 +110,17 @@
 
 # RECORD KA Lite AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'kalite_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: kalite
+    option: kalite_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'kalite_installed: True'"
   set_fact:
     kalite_installed: True

roles/kiwix/tasks/install.yml

@@ -6,6 +6,11 @@
   when: kiwix_arch == "unsupported"
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 1. PUT IN PLACE: /opt/iiab/downloads/kiwix-tools_linux-*.tar.gz, move /opt/iiab/kiwix/bin aside if nec, create essential dirs, and test.zim if nec (library.xml is created later, by enable-or-disable.yml)
 
 # 2022-10-04: get_url might be removed in future (unarchive below can handle
@@ -118,6 +123,17 @@
 
 # 5. RECORD Kiwix AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'kiwix_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: kiwix
+    option: kiwix_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'kiwix_installed: True'"
   set_fact:
     kiwix_installed: True

roles/kolibri/tasks/install.yml

@@ -23,6 +23,11 @@
 # https://kolibri.readthedocs.io/en/latest/install/provision.html
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Create Linux user {{ kolibri_user }} and add it to groups {{ apache_user }}, disk
   user:
     name: "{{ kolibri_user }}"
@@ -209,6 +214,17 @@
 
 # RECORD Kolibri AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'kolibri_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: kolibri
+    option: kolibri_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'kolibri_installed: True'"
   set_fact:
     kolibri_installed: True

roles/lokole/tasks/install.yml

@@ -2,6 +2,11 @@
 # https://github.com/iiab/iiab/blob/master/roles/www_base/templates/iiab-refresh-wiki-docs.sh#L51-L52
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Install 12 packages for Lokole
   apt:
     name:
@@ -133,6 +138,17 @@
 
 # RECORD Lokole AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'lokole_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: lokole
+    option: lokole_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'lokole_installed: True'"
   set_fact:
     lokole_installed: True

roles/matomo/tasks/install.yml

@@ -12,6 +12,11 @@
 # fatal: [127.0.0.1]: FAILED! => {"cache_control": "private, no-cache, no-store", "changed": false, "connection": "close", "content_type": "text/html; charset=utf-8", "date": "Wed, 15 Jun 2022 05:07:41 GMT", "elapsed": 0, "expires": "Thu, 19 Nov 1981 08:52:00 GMT", "msg": "Status code was 500 and not [200]: HTTP Error 500: Internal Server Error", "pragma": "no-cache", "redirected": false, "server": "nginx/1.18.0 (Ubuntu)", "set_cookie": "MATOMO_SESSID=psak3aem27vrdrt8t2f016600f; path=/; HttpOnly; SameSite=Lax", "status": 500, "transfer_encoding": "chunked", "url": "http://box.lan/matomo/index.php?action=welcome", "x_matomo_request_id": "fbfd2"}
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # https://matomo.org/faq/on-premise/matomo-requirements/
 - name: Install Matomo's recommended PHP extensions
   package:
@@ -239,6 +244,17 @@
 
 # RECORD Matomo AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'matomo_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: matomo
+    option: matomo_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'matomo_installed: True'"
   set_fact:
     matomo_installed: True

roles/mediawiki/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # https://www.mediawiki.org/wiki/Manual:Installation_requirements#PHP
 - name: 'Install packages: php{{ php_version }}-intl, php{{ php_version }}-mbstring, php{{ php_version }}-xml'
   package:
@@ -95,6 +100,17 @@
 
 # RECORD MediaWiki AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'mediawiki_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: mediawiki
+    option: mediawiki_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'mediawiki_installed: True'"
   set_fact:
     mediawiki_installed: True

roles/minetest/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Check for Minetest world file ({{ minetest_world_dir }}/world.mt)
   stat:
     path: "{{ minetest_world_dir }}/world.mt"
@@ -7,9 +12,6 @@
   file:
     state: directory
     path: /library/games
-    # owner: root
-    # group: root
-    # mode: '0755'
 
 - include_tasks: minetest_install.yml
   when: not minetest_world.stat.exists
@@ -35,8 +37,20 @@
       url: https://content.minetest.net/packages/sfan5/worldedit/releases/13367/download/
   when: minetest_default_game == "minetest"
 
+
 # RECORD Minetest AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'minetest_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: minetest
+    option: minetest_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'minetest_installed: True'"
   set_fact:
     minetest_installed: True

roles/mongodb/tasks/install.yml

@@ -4,6 +4,11 @@
 # https://www.mongodb.com/docs/manual/installation/
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 1. INSTALL MongoDB PACKAGES AND/OR BINARIES
 
 # 2019-02-02: Sugarizer with Node.js 10.x requires MongoDB 2.6+ so
@@ -367,6 +372,17 @@
 
 # 3. RECORD MongoDB AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'mongodb_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: mongodb
+    option: mongodb_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'mongodb_installed: True'"
   set_fact:
     mongodb_installed: True

roles/monit/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Install 'monit' package
   package:
     name: monit
@@ -35,6 +40,17 @@
 
 # RECORD Monit AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'monit_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: monit
+    option: monit_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'monit_installed: True'"
   set_fact:
     monit_installed: True

roles/moodle/tasks/install.yml

@@ -17,6 +17,11 @@
     name: postgresql
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 2021-07-02: Let's monitor & learn from these 2 pages year-by-year:
 # https://docs.moodle.org/19/en/PHP_settings_by_Moodle_version#PHP_Extensions_and_libraries
 # https://github.com/moodlebox/moodlebox/blob/master/roles/packages/vars/main.yml
@@ -189,6 +194,17 @@
 
 # RECORD Moodle AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'moodle_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: moodle
+    option: moodle_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'moodle_installed: True'"
   set_fact:
     moodle_installed: True

roles/mosquitto/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install packages: mosquitto, mosquitto-clients"
   package:
     name: "{{ item }}"
@@ -32,6 +37,17 @@
 
 # RECORD Mosquitto AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'mosquitto_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: mosquitto
+    option: mosquitto_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'mosquitto_installed: True'"
   set_fact:
     mosquitto_installed: True

roles/munin/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # SEE ALSO roles/network/tasks/install.yml
 - name: TEMPORARILY REVERT net.ipv6.conf.all.disable_ipv6 to 0 in /etc/sysctl.conf for #3434
   sysctl:
@@ -44,6 +49,17 @@
 
 # RECORD Munin AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'munin_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: munin
+    option: munin_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'munin_installed: True'"
   set_fact:
     munin_installed: True

roles/mysql/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: 'Install MySQL packages: mariadb-server, mariadb-client, php{{ php_version }}-mysql, python3-pymysql'
   package:
     name:
@@ -61,6 +66,17 @@
 
 # RECORD MySQL AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'mysql_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: mysql
+    option: mysql_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'mysql_installed: True'"
   set_fact:
     mysql_installed: True

roles/network/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 2022-03-16: 'apt show <pkg> | grep Size' revealed download sizes, on 64-bit RasPiOS with desktop.
 
 - name: Install dnsmasq -- configure LATER in 'network', after Stage 9
@@ -101,6 +106,17 @@
 
 # RECORD Network AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'network_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: network
+    option: network_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'network_installed: True'"
   set_fact:
     network_installed: True

roles/nextcloud/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # CHECK FOR PHP VERSION AUTOMATICALLY, TO DETERMINE WHICH NEXTCLOUD TO INSTALL.
 # INSPIRED BY: github.com/iiab/iiab/blob/master/roles/nodejs/tasks/main.yml
 
@@ -119,6 +124,17 @@
 
 # RECORD Nextcloud AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'nextcloud_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: nextcloud
+    option: nextcloud_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'nextcloud_installed: True'"
   set_fact:
     nextcloud_installed: True

roles/nextcloud/tasks/main.yml

@@ -31,7 +31,7 @@
   - name: Add 'nextcloud' variable values to {{ iiab_ini_file }}
     ini_file:
       path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
-      section: Nextcloud
+      section: nextcloud
       option: "{{ item.option }}"
       value: "{{ item.value | string }}"
     with_items:

roles/nginx/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Stop & Disable '{{ apache_service }}' systemd service, in case it exists
   systemd:
     name: "{{ apache_service }}"    # apache2 or httpd, per /opt/iiab/iiab/vars/<OS>.yml
@@ -66,6 +71,17 @@
 
 # RECORD NGINX AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'nginx_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: nginx
+    option: nginx_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'nginx_installed: True'"
   set_fact:
     nginx_installed: True

roles/nodejs/tasks/install.yml

@@ -1,3 +1,12 @@
+# Lokole PDF (User's Guide) gets copied for offline use (http://box/info) here:
+# https://github.com/iiab/iiab/blob/master/roles/www_base/templates/iiab-refresh-wiki-docs.sh#L51-L52
+
+
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 1. TEST IF Node.js ALEADY INSTALLED & IF SO WARN IT'LL BE REPLACED
 
 # 2019-02-03: BELOW TESTS IF 'nodejs' VERSION IS ALREADY INSTALLED:
@@ -161,6 +170,17 @@
 
 # 3. RECORD Node.js AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'nodejs_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: nodejs
+    option: nodejs_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'nodejs_installed: True'"
   set_fact:
     nodejs_installed: True

roles/nodered/tasks/install.yml

@@ -23,6 +23,11 @@
 #  when: nodejs_version != "12.x"
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # BRUTAL but ensures consistency across OS's / distros like Raspbian Desktop &
 # Ubermix that often include an older version of Node-RED.  Brutal, as this
 # removes customizations on graphical desktop OS's e.g. Raspbian Desktop's:
@@ -138,6 +143,17 @@
 
 # RECORD Node-RED AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'nodered_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: nodered
+    option: nodered_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'nodered_installed: True'"
   set_fact:
     nodered_installed: True

roles/openvpn/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install packages: ncat, nmap, openvpn, sudo"
   package:
     name:
@@ -100,6 +105,17 @@
 
 # RECORD OpenVPN AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'openvpn_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: openvpn
+    option: openvpn_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'openvpn_installed: True'"
   set_fact:
     openvpn_installed: True

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

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install packages for map installation: python3-geojson, python3-pil, python3-wget, php{{ php_version }}-sqlite3 (can also be installed by www_base/tasks/php-stem.yml)"
   package:
     state: present
@@ -196,6 +201,17 @@
 
 # RECORD OSM Vector Maps AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'osm_vector_maps_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: osm-vector-maps
+    option: osm_vector_maps_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'osm_vector_maps_installed: True'"
   set_fact:
     osm_vector_maps_installed: True

roles/pbx/tasks/install.yml

@@ -22,6 +22,11 @@
 #   when: nodejs_version != "12.x"
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 2021-08-09: Moved to roles/pbx/tasks/apache.yml
 
 # - name: "Set 'apache_install: True' and 'apache_enabled: True'"
@@ -44,6 +49,17 @@
 
 # RECORD PBX AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'pbx_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: pbx
+    option: pbx_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'pbx_installed: True'"
   set_fact:
     pbx_installed: True

roles/phpmyadmin/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Download {{ phpmyadmin_dl_url }} to {{ downloads_dir }}
   get_url:
     url: "{{ phpmyadmin_dl_url }}"    # e.g. https://files.phpmyadmin.net/phpMyAdmin/5.0.4/phpMyAdmin-5.0.4-all-languages.zip
@@ -48,6 +53,17 @@
 
 # RECORD phpMyAdmin AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'phpmyadmin_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: phpmyadmin
+    option: phpmyadmin_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'phpmyadmin_installed: True'"
   set_fact:
     phpmyadmin_installed: True

roles/postgresql/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: 'Install packages: postgresql, postgresql-client, python3-psycopg2'
   package:
     name:
@@ -90,6 +95,17 @@
 
 # RECORD PostgreSQL AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'postgresql_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: postgresql
+    option: postgresql_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'postgresql_installed: True'"
   set_fact:
     postgresql_installed: True

roles/pylibs/tasks/main.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Install iiab lib files
   template:
     src: "{{ item.src }}"
@@ -13,6 +18,17 @@
 
 # RECORD pylibs AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'pylibs_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: pylibs
+    option: pylibs_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'pylibs_installed: True'"
   set_fact:
     pylibs_installed: True

roles/remoteit/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # - name: Fail if architecture remoteit_device_suffix == "unknown"
 #   fail:
 #     msg: "Could not find a remote.it Device Package (.deb) for CPU architecture \"{{ ansible_architecture }}\""
@@ -124,6 +129,17 @@
 
 # RECORD remote.it AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'remoteit_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: remoteit
+    option: remoteit_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'remoteit_installed: True'"
   set_fact:
     remoteit_installed: True

roles/samba/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Create smb user: {{ smbuser }}"
   user:
     name: "{{ smbuser }}"
@@ -31,6 +36,17 @@
 
 # RECORD Samba AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'samba_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: samba
+    option: samba_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'samba_installed: True'"
   set_fact:
     samba_installed: True

roles/sshd/tasks/install.yml

@@ -9,6 +9,12 @@
 #
 # 2) Use Ansible handler to reload ssh?
 
+
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install ssh daemon using package: {{ sshd_package }}"
   package:
     name: "{{ sshd_package }}"
@@ -41,6 +47,17 @@
 
 # RECORD sshd AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'sshd_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: sshd
+    option: sshd_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'sshd_installed: True'"
   set_fact:
     sshd_installed: True

roles/sugarizer/tasks/install.yml

@@ -27,6 +27,11 @@
 #  when: nodejs_version != "12.x"
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 2. DOWNLOAD+LINK /opt/iiab/sugarizer
 
 - name: Clone llaske/sugarizer ({{ sugarizer_git_version }} branch/version) from GitHub to /opt/iiab/{{ sugarizer_dir_version }} (DOWNLOADS ~740 MB)
@@ -232,6 +237,17 @@
 
 # 6. RECORD Sugarizer AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'sugarizer_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: sugarizer
+    option: sugarizer_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'sugarizer_installed: True'"
   set_fact:
     sugarizer_installed: True

roles/transmission/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: "Install BitTorrent packages: transmission-daemon, transmission-cli"
   package:
     name:
@@ -55,6 +60,17 @@
 
 # RECORD Transmission AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'transmission_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: transmission
+    option: transmission_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'transmission_installed: True'"
   set_fact:
     transmission_installed: True

roles/usb_lib/tasks/install.yml

@@ -7,6 +7,12 @@
 # https://github.com/rbrito/usbmount/blob/master/README.md (2018-08-10)
 # https://github.com/rbrito/usbmount/blob/master/usbmount.conf (2010-04-25)
 
+
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Does systemd-udevd.service exist
   stat:
     path: "{{ systemd_location }}/systemd-udevd.service"
@@ -87,6 +93,17 @@
 
 # RECORD 'USB_LIB' AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'usb_lib_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: usb_lib
+    option: usb_lib_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'usb_lib_installed: True'"
   set_fact:
     usb_lib_installed: True

roles/vnstat/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Install 'vnstat' package
   package:
     name: vnstat
@@ -42,6 +47,17 @@
 
 # RECORD vnStat AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'vnstat_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: vnstat
+    option: vnstat_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'vnstat_installed: True'"
   set_fact:
     vnstat_installed: True

roles/wordpress/tasks/install.yml

@@ -12,6 +12,15 @@
 # can arise without warning when WordPress is online, since WordPress ~4.8
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
+- name: Provision MySQL DB
+  include_tasks: setup.yml
+
+
 # 2021-06-29: PHP modules, covering "RECOMMENDED" and "OPTIONAL" sections here:
 # https://make.wordpress.org/hosting/handbook/server-environment/
 - name: Install libsodium23 + 8 PHP packages (run 'php -m' or 'php -i' to verify)
@@ -131,6 +140,17 @@
 
 # RECORD WordPress AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'wordpress_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: wordpress
+    option: wordpress_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'wordpress_installed: True'"
   set_fact:
     wordpress_installed: True

roles/wordpress/tasks/main.yml

@@ -23,19 +23,13 @@
 
 - block:
 
-  - name: Provision MySQL DB for WordPress, if 'wordpress_installed' not defined, e.g. in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
-    include_tasks: setup.yml
-    when: wordpress_installed is undefined    # and not installing
-
   - name: Install WordPress if 'wordpress_installed' not defined, e.g. in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
     include_tasks: install.yml
     when: wordpress_installed is undefined
 
-
   - name: Enable/Disable/Restart NGINX
     include_tasks: nginx.yml
 
-
   - name: Add 'wordpress' variable values to {{ iiab_ini_file }}
     ini_file:
       path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini

roles/www_base/tasks/main.yml

@@ -1,6 +1,12 @@
 # Role "www_base" runs here, probably in 3-BASE-SERVER.
 # Role "www_options" runs later, likely in 4-SERVER-OPTIONS.
 
+
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # 2021-06-27: Antifragile roles can become less brittle by fully declaring
 # their own dependencies (i.e. for modularity, separation-of-concerns,
 # encapsulation, compartmentalization, scope sanity, etc).
@@ -54,6 +60,17 @@
 
 # RECORD www_base AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'www_base_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: www_base
+    option: www_base_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'www_base_installed: True'"
   set_fact:
     www_base_installed: True

roles/www_options/tasks/main.yml

@@ -2,6 +2,11 @@
 # Role "www_options" runs here, probably in 4-SERVER-OPTIONS.
 
 
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 # HOMEPAGE
 
 - name: Create dir {{ doc_root }}{{ iiab_home_url }} just in case variable iiab_home_url was customized.  (Standard path {{doc_root}}/home was created earlier.)
@@ -119,6 +124,17 @@
 
 # RECORD www_options AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'www_options_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: www_options
+    option: www_options_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'www_options_installed: True'"
   set_fact:
     www_options_installed: True

roles/yarn/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Yarn | Download apt key to /usr/share/keyrings/yarn.gpg
   shell: curl https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor > /usr/share/keyrings/yarn.gpg
 
@@ -40,6 +45,17 @@
 
 # RECORD Yarn AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'yarn_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: yarn
+    option: yarn_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'yarn_installed: True'"
   set_fact:
     yarn_installed: True