Magento 2.4.8 refactor:

- Switch to split containers (markoshust/magento-php:8.2-fpm + magento-nginx:latest)
- Disable central DB; use app-local MariaDB and pin to 11.4
- Composer bootstrap of Magento in php container (Adobe repo keys), idempotent via creates
- Make setup:install idempotent; run as container user 'app'
- Wire OpenSearch (security disabled) and depends_on ordering
- Add credentials schema (adobe_public_key/adobe_private_key)
- Update vars for php/nginx/search containers + MAGENTO_USER
- Remove legacy docs (Administration.md, Upgrade.md)
Context: changes derived from our ChatGPT session about getting Magento 2.4.8 running with MariaDB 11.4.
Conversation: https://chatgpt.com/share/68b8dc30-361c-800f-aa69-88df514cb160

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

@@ -2,7 +2,7 @@ features:
   matomo:             true
   css:                true
   desktop:            true
-  central_database:   true        # Use platform DB (recommended). If false, app-local DB container is enabled.
+  central_database:   false       # Impossible to use central database due to strict database checking
   oidc:               false       # Magento SSO via OIDC requires extensions; not wired by default
   logout:             true
   ldap:               false
@@ -15,17 +15,23 @@ server:
       - "shop.{{ PRIMARY_DOMAIN }}"
     aliases:
       - "magento.{{ PRIMARY_DOMAIN }}"
-
 docker:
   services:
-    application:
-      image:              "ghcr.io/alexcheng1982/docker-magento2"
-      version:            "2.4.6-p3"
-      name:               "magento"
+    php:
+      image:              "markoshust/magento-php"
+      version:            "8.2-fpm"
+      name:               "magento-php"
+      backup:
+        no_stop_required: true
+    nginx:
+      image:              "markoshust/magento-nginx"
+      version:            "latest"
+      name:               "magento-nginx"
       backup:
         no_stop_required: true
     database:
-      enabled:            true      # Central DB recommended; if disabled, app-local DB is created
+      enabled:            true
+      version:            "11.4"
     redis:
       enabled:            true
     search: