xwiki: switch to PostgreSQL and remove custom Hibernate override

Config: set database.type=postgres; use image tag lts-<dbtype>-tomcat; make DB_TYPE templated; derive database_type from app config.

Cleanup: delete hibernate.cfg.xml template and volume mounts; remove XWIKI_HOST_HIBERNATE_PATH; stop rendering hibernate.cfg.xml.

web-svc-cdn: run_once task fix.

Context: troubleshooting on 2025-09-12. Conversation link: https://chatgpt.com/share/68c3978e-77cc-800f-beda-19220f70855f

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

@@ -5,9 +5,10 @@ docker:
       enabled:      false
     database:
       enabled:      true
+      type:         postgres
     xwiki:
       image:        xwiki
-      version:      stable-mariadb-tomcat
+      version:      lts-<< defaults_applications[web-app-xwiki].docker.services.database.type >>-tomcat
       name:         xwiki
       backup:
         no_stop_required: true

roles/web-app-xwiki/tasks/01_core.yml

@@ -16,12 +16,6 @@
     dest: "{{ XWIKI_HOST_PROPERTIES_PATH }}"
   notify: docker compose up
 
-- name: "Render hibernate.cfg.xml"
-  template:
-    src: "hibernate.cfg.xml.j2"
-    dest: "{{ XWIKI_HOST_HIBERNATE_PATH }}"
-  notify: docker compose up
-
 - name: "flush docker compose for '{{ application_id }}'"
   meta: flush_handlers
 

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

@@ -11,8 +11,6 @@
     volumes:
       - "{{ XWIKI_HOST_CONF_PATH }}:/usr/local/xwiki/xwiki.cfg"
       - "{{ XWIKI_HOST_PROPERTIES_PATH }}:/usr/local/xwiki/xwiki.properties"
-      - "{{ XWIKI_HOST_HIBERNATE_PATH }}:/usr/local/xwiki/hibernate.cfg.xml"
-      - "{{ XWIKI_HOST_HIBERNATE_PATH }}:/usr/local/tomcat/webapps/ROOT/WEB-INF/hibernate.cfg.xml"
       - 'data:/usr/local/xwiki'
 {% include 'roles/docker-container/templates/healthcheck/curl.yml.j2' %}
 {% include 'roles/docker-container/templates/base.yml.j2' %}

roles/web-app-xwiki/templates/env.j2

@@ -3,3 +3,4 @@ DB_PASSWORD="{{ database_password }}"
 DB_HOST="{{ database_host }}"
 DB_PORT="{{ database_port }}"
 DB_DATABASE="{{ database_name }}"
+DB_TYPE="{{ 'mariadb' if database_type == 'mariadb' else 'postgresql' }}"

roles/web-app-xwiki/templates/hibernate.cfg.xml.j2

@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
-        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
-<hibernate-configuration>
-  <session-factory>
-    <!-- deine bestehenden DB-Props (Driver, URL, User, Pass) -->
-    <property name="hibernate.connection.driver_class">org.mariadb.jdbc.Driver</property>
-    <property name="hibernate.connection.url">jdbc:mariadb://{{ database_host }}:{{ database_port }}/{{ database_name }}?useUnicode=true&amp;characterEncoding=UTF-8</property>
-    <property name="hibernate.connection.username">{{ database_username }}</property>
-    <property name="hibernate.connection.password">{{ database_password }}</property>
-
-    <!-- DBCP: leichte Validierung statt Treiber-isValid / Diagnose -->
-    <property name="hibernate.dbcp.testOnBorrow">true</property>
-    <property name="hibernate.dbcp.testWhileIdle">true</property>
-    <property name="hibernate.dbcp.validationQuery">SELECT 1</property>
-    <property name="hibernate.dbcp.validationQueryTimeout">5</property>
-    <property name="hibernate.dbcp.timeBetweenEvictionRunsMillis">30000</property>
-    <property name="hibernate.dbcp.minEvictableIdleTimeMillis">60000</property>
-  </session-factory>
-</hibernate-configuration>

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

@@ -1,6 +1,7 @@
 # General
 application_id:                       "web-app-xwiki"
-database_type:                        "mariadb"
+database_type:                        "{{ applications | get_app_conf(application_id, 'docker.services.database.type') }}"
+
 container_port:                       8080
 container_hostname:                   "{{ domains | get_domain(application_id) }}"
 
@@ -14,7 +15,6 @@ XWIKI_HOSTNAME:                       "{{ container_hostname }}"
 ## Paths
 XWIKI_HOST_CONF_PATH:                 "{{ [docker_compose.directories.config, 'xwiki.cfg'] | path_join }}"
 XWIKI_HOST_PROPERTIES_PATH:           "{{ [docker_compose.directories.config, 'xwiki.properties'] | path_join }}"
-XWIKI_HOST_HIBERNATE_PATH:            "{{ [docker_compose.directories.config, 'hibernate.cfg.xml'] | path_join }}"
 
 ## Docker
 XWIKI_IMAGE_CUSTOM:                   "xwiki_custom"

roles/web-svc-cdn/tasks/01_core.yml

@@ -15,4 +15,6 @@
   template:
     src: "nginx.conf.j2"
     dest: "{{ CDN_NGINX_PATH }}"
-  notify: restart openresty
+  notify: restart openresty
+
+- include_tasks: utils/run_once.yml

roles/web-svc-cdn/tasks/main.yml

@@ -1,6 +1,5 @@
 - block:
   - include_tasks: 01_core.yml
-  - include_tasks: utils/run_once.yml
   when: run_once_web_svc_cdn is not defined
 
 - include_tasks: "{{ playbook_dir }}/tasks/utils/load_handlers.yml"