web-app-mediawiki: template-driven LocalSettings.php + admin automation; compose & config tweaks

Config & features:
- roles/web-app-mediawiki/config/main.yml:
  - Add sitename ('Wiki on {{ PRIMARY_DOMAIN | upper }}') and meta_namespace ('Meta')
  - Enable central_database feature and database service
  - Move volumes under docker.volumes (correct indentation)

Tasks & automation:
- roles/web-app-mediawiki/tasks/main.yml:
  - Avoid immediate compose handler flush (docker_compose_flush_handlers: false), then explicit meta: flush_handlers
  - Deploy templated LocalSettings.php to host path
  - Create admin via maintenance/createAndPromote.php (docker exec, idempotent changed_when/failed_when)

Templates:
- roles/web-app-mediawiki/templates/LocalSettings.php.j2:
  - Set $wgSitename, $wgMetaNamespace, $wgServer from MEDIAWIKI_*
  - DB settings (mysql, host:port, name, user, password)
  - Mail settings (EmergencyContact/PasswordSender)
  - Default skin: vector
  - Load basic extensions (ParserFunctions, Cite)
- roles/web-app-mediawiki/templates/docker-compose.yml.j2:
  - Switch to MEDIAWIKI_* vars, mount LocalSettings.php (ro)
  - Use container_port, include curl healthcheck
  - Fix volumes name to MEDIAWIKI_VOLUME

Vars:
- roles/web-app-mediawiki/vars/main.yml:
  - Restructure with MEDIAWIKI_* (sitename, meta_namespace, URL, image/version/container/volume)
  - Define SETTINGS host/dock paths, container_port, default user (www-data)
  - Admin bootstrap vars (name/password/email)

Misc:
- Add empty schema/main.yml placeholder for future validation

Refs: ChatGPT conversation (2025-08-28, Europe/Berlin). Link: https://chatgpt.com/share/68b0ace6-f8f4-800f-b7a7-a51a6c5260f1

roles/web-app-mediawiki/config/main.yml

@@ -1,16 +1,21 @@
+sitename:       "Wiki on {{ PRIMARY_DOMAIN | upper }}"
+meta_namespace: "Meta"
 server:
   domains:
     canonical:
       - "wiki.{{ PRIMARY_DOMAIN }}"
 docker:
   services:
+    database:
+      enabled:  true
     mediawiki: 
       image:    mediawiki
       version:  latest
       backup:
         no_stop_required: true
       name:     mediawiki
-    volumes:
-      data:     mediawiki_data
+  volumes:
+    data:     mediawiki_data
 features:
   logout: true
+  central_database: true

roles/web-app-mediawiki/tasks/main.yml

@@ -2,7 +2,32 @@
 - name: "load docker, db and proxy for {{ application_id }}"
   include_role: 
     name: cmp-db-docker-proxy
+  vars:
+    docker_compose_flush_handlers: false
 
-- name: add docker-compose.yml
-  template: src=docker-compose.yml.j2 dest={{ docker_compose.directories.instance }}docker-compose.yml
-  notify: docker compose up
+- name: "Deploy MediaWiki LocalSettings.php"
+  template:
+    src: "LocalSettings.php.j2"
+    dest: "{{ MEDIAWIKI_SETTINGS_HOST_PATH }}"
+    mode: '0644'
+
+- name: "Flush docker compose handlers"
+  meta: flush_handlers
+
+- name: "Create MediaWiki admin user"
+  command: >
+    docker exec
+    -u {{ MEDIAWIKI_USER }}
+    {{ MEDIAWIKI_CONTAINER }}
+    php /var/www/html/maintenance/createAndPromote.php
+    --bureaucrat --sysop
+    {{ MEDIAWIKI_ADMINISTRATOR_NAME }}
+    {{ MEDIAWIKI_ADMINISTRATOR_PASSWORD }}
+    {{ MEDIAWIKI_ADMINISTRATOR_EMAIL }}
+  register: create_admin
+  changed_when: >
+    'created' in (create_admin.stdout | default('')) or
+    'Created' in (create_admin.stdout | default(''))
+  failed_when: >
+    create_admin.rc != 0 and
+    ('already exists' not in (create_admin.stdout | default('') ~ create_admin.stderr | default('')))

roles/web-app-mediawiki/templates/LocalSettings.php.j2

@@ -0,0 +1,29 @@
+<?php
+# This file was automatically generated by the MediaWiki installer.
+# Managed by Ansible in your setup.
+
+# Basic settings
+$wgSitename = "{{ MEDIAWIKI_SITENAME }}";
+$wgMetaNamespace = "{{ MEDIAWIKI_META_NAMESPACE }}";
+$wgScriptPath = "";
+$wgServer = "{{ MEDIAWIKI_URL }}";
+
+# Database settings
+$wgDBtype = "mysql";
+$wgDBserver = "{{ database_host }}:{{ database_port }}";
+$wgDBname = "{{ database_name }}";
+$wgDBuser = "{{ database_username }}";
+$wgDBpassword = "{{ database_password }}";
+
+# Email settings
+$wgEnableEmail = true;
+$wgEnableUserEmail = true;
+$wgEmergencyContact = "{{ users.administrator.email }}";
+$wgPasswordSender = "{{ users['no-reply'].email }}";
+
+# Default skin
+$wgDefaultSkin = "vector";
+
+# Extensions (examples)
+wfLoadExtension( 'ParserFunctions' );
+wfLoadExtension( 'Cite' );

roles/web-app-mediawiki/templates/docker-compose.yml.j2

@@ -1,16 +1,19 @@
 {% include 'roles/docker-compose/templates/base.yml.j2' %}
   application:
 {% include 'roles/docker-container/templates/base.yml.j2' %}
-      container_name: "{{ mediawiki_name }}"
-      image: "{{ mediawiki_image }}:{{ mediawiki_version }}"
-      volumes:
-        - "data:/var/www/html/"
-      ports:
-        - "127.0.0.1:{{ ports.localhost.http[application_id] }}:80"
+    container_name: "{{ MEDIAWIKI_CONTAINER }}"
+    image: "{{ MEDIAWIKI_IMAGE }}:{{ MEDIAWIKI_VERSION }}"
+    volumes:
+      - "data:/var/www/html/"
+      - "{{ MEDIAWIKI_SETTINGS_HOST_PATH }}:{{ MEDIAWIKI_SETTINGS_DOCK_PATH }}:ro"
+    ports:
+      - "127.0.0.1:{{ ports.localhost.http[application_id] }}:{{ container_port }}"
+{% include 'roles/docker-container/templates/healthcheck/curl.yml.j2' %}
 {% include 'roles/docker-container/templates/networks.yml.j2' %}
 {% include 'roles/docker-container/templates/depends_on/dmbs_excl.yml.j2' %}
 
 {% include 'roles/docker-compose/templates/volumes.yml.j2' %}
   data:
-    name: {{ mediawiki_volume }}
-{% include 'roles/docker-compose/templates/networks.yml.j2' %}
+    name: {{ MEDIAWIKI_VOLUME }}
+
+{% include 'roles/docker-compose/templates/networks.yml.j2' %}

roles/web-app-mediawiki/vars/main.yml

@@ -1,6 +1,23 @@
-application_id:     "web-app-mediawiki"
-database_type:      "mariadb"
-mediawiki_version:   "{{ applications | get_app_conf(application_id, 'docker.services.mediawiki.version', True) }}"
-mediawiki_image:     "{{ applications | get_app_conf(application_id, 'docker.services.mediawiki.image', True) }}"
-mediawiki_name:      "{{ applications | get_app_conf(application_id, 'docker.services.mediawiki.name', True) }}"
-mediawiki_volume:    "{{ applications | get_app_conf(application_id, 'docker.volumes.data', True) }}"
+# General
+application_id:                   "web-app-mediawiki"
+database_type:                    "mariadb"
+container_port:                   80
+
+# Mediawiki
+MEDIAWIKI_SITENAME:               "{{ applications | get_app_conf(application_id, 'sitename') }}"
+MEDIAWIKI_META_NAMESPACE:         "{{ applications | get_app_conf(application_id, 'meta_namespace') }}"
+MEDIAWIKI_URL:                    "{{ domains | get_url(application_id, WEB_PROTOCOL) }}"
+
+## Docker
+MEDIAWIKI_VERSION:                "{{ applications | get_app_conf(application_id, 'docker.services.mediawiki.version') }}"
+MEDIAWIKI_IMAGE:                  "{{ applications | get_app_conf(application_id, 'docker.services.mediawiki.image') }}"
+MEDIAWIKI_CONTAINER:              "{{ applications | get_app_conf(application_id, 'docker.services.mediawiki.name') }}"
+MEDIAWIKI_VOLUME:                 "{{ applications | get_app_conf(application_id, 'docker.volumes.data') }}"
+MEDIAWIKI_SETTINGS_HOST_PATH:     "{{ [docker_compose.directories.volumes, 'LocalSettings.php'] | path_join }}"
+MEDIAWIKI_SETTINGS_DOCK_PATH:     "/var/www/html/LocalSettings.php"
+MEDIAWIKI_USER:                   "www-data"
+
+# User
+MEDIAWIKI_ADMINISTRATOR_NAME:     "{{ users.administrator.username }}"
+MEDIAWIKI_ADMINISTRATOR_PASSWORD: "{{ users.administrator.password }}"
+MEDIAWIKI_ADMINISTRATOR_EMAIL:    "{{ users.administrator.email }}"