feat(shopware): migrate to single Shopware base image and split services (web/worker/scheduler/init)

• Introduce init container and runtime-ready Dockerfile (Alpine) installing php83-gd/intl/pdo_mysql
• Disable composer scripts in builder and ignore build-time ext reqs
• New docker-compose template (web/worker/scheduler/opensearch) + persistent volumes
• Use TRUSTED_PROXIES env; fix APP_URL formatting; set OPENSEARCH_HOST=opensearch
• Replace SHOPWARE_PHP_CONTAINER refs with SHOPWARE_WEB_CONTAINER in tasks
• Render and copy init.sh via volumes path
• Remove old nginx/php split and legacy DB env task
• Fix svc-db-postgres var: database_type now uses entity_name
https://chatgpt.com/share/6907fc58-7c28-800f-a993-c207f28859c9

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

@@ -1,36 +1,81 @@
+x-environment: &shopware
+  image: "{{ SHOPWARE_CUSTOM_IMAGE }}"
+  volumes:
+    - files:/var/www/html/files
+    - theme:/var/www/html/public/theme
+    - media:/var/www/html/public/media
+    - thumbnail:/var/www/html/public/thumbnail
+    - sitemap:/var/www/html/public/sitemap
+  working_dir: {{ SHOPWARE_ROOT }}
+
 {% include 'roles/docker-compose/templates/base.yml.j2' %}
 
-{% set service_name = 'php' %}
+# -------------------------
+# INIT (runs once per deployment)
+# -------------------------
+{% set service_name = 'init' %}
+{% set docker_restart_policy = 'no' %}
   {{ service_name }}:
 {% include 'roles/docker-container/templates/base.yml.j2' %}
-    image: "{{ SHOPWARE_PHP_IMAGE }}:{{ SHOPWARE_VERSION }}"
-    container_name: "{{ SHOPWARE_PHP_CONTAINER }}"
-    working_dir: /var/www/html
-    volumes:
-      - data:/var/www/html
-      - /etc/timezone:/etc/timezone:ro
-      - /etc/localtime:/etc/localtime:ro
-{% include 'roles/docker-container/templates/networks.yml.j2' %}
-{% include 'roles/docker-container/templates/depends_on/dmbs_excl.yml.j2' %}
+{% set docker_restart_policy = DOCKER_RESTART_POLICY %}
+    <<: *shopware
+    container_name: "{{ SHOPWARE_INIT_CONTAINER }}"
+    entrypoint: [ "sh", "/usr/local/bin/init.sh" ]
 
-{% set service_name = 'nginx' %}
-{% set container_port = 80 %}
+{# -------------------------
+   WEB (serves HTTP on 8000)
+   ------------------------- #}
+{% set service_name = 'web' %}
+{% set container_port = applications | get_app_conf(application_id, 'docker.services.web.port') %}
   {{ service_name }}:
 {% include 'roles/docker-container/templates/base.yml.j2' %}
-    image: "{{ SHOPWARE_NGINX_IMAGE }}:{{ SHOPWARE_NGINX_VERSION }}"
-    container_name: "{{ SHOPWARE_NGINX_CONTAINER }}"
+    <<: *shopware
+    {{ lookup('template', 'roles/docker-container/templates/build.yml.j2') | indent(4) }}
+    container_name: "{{ SHOPWARE_WEB_CONTAINER }}"
     ports:
       - "127.0.0.1:{{ ports.localhost.http[application_id] }}:{{ container_port }}"
-    volumes:
-      - data:/var/www/html:ro
     depends_on:
-      - php
+      init:
+        condition: service_completed_successfully
 {% filter indent(4) %}
     {% include 'roles/docker-container/templates/healthcheck/http.yml.j2' %}
 {% endfilter %}
 
 {% include 'roles/docker-container/templates/networks.yml.j2' %}
 
+{# -------------------------
+   WORKER (async queues)
+   ------------------------- #}
+{% set service_name = 'worker' %}
+  {{ service_name }}:
+{% include 'roles/docker-container/templates/base.yml.j2' %}
+    <<: *shopware
+    container_name: "{{ SHOPWARE_WORKER_CONTAINER }}"
+    pull_policy: never
+    entrypoint: {{ SHOPWARE_WORKER_ENTRYPOINT }}
+    depends_on:
+      init:
+        condition: service_completed_successfully
+# @todo Activate for swarm deploy
+#    deploy:
+#      replicas: {{ SHOPWARE_WORKER_REPLICAS }}
+{% include 'roles/docker-container/templates/networks.yml.j2' %}
+
+{# -------------------------
+   SCHEDULER (cron-like)
+   ------------------------- #}
+{% set service_name = 'scheduler' %}
+  {{ service_name }}:
+{% include 'roles/docker-container/templates/base.yml.j2' %}
+    <<: *shopware
+    container_name: "{{ SHOPWARE_SCHED_CONTAINER }}"
+    pull_policy: never
+    entrypoint: {{ SHOPWARE_SCHED_ENTRYPOINT }}
+    depends_on:
+      init:
+        condition: service_completed_successfully
+{% include 'roles/docker-container/templates/networks.yml.j2' %}
+
 {% if SHOPWARE_OPENSEARCH_ENABLED %}
 {% set service_name = 'opensearch' %}
   {{ service_name }}:
@@ -44,11 +89,24 @@
       - OPENSEARCH_JAVA_OPTS=-Xms{{ SHOPWARE_OPENSEARCH_MEM_RESERVATION }} -Xmx{{ SHOPWARE_OPENSEARCH_MEM_RESERVATION }}
     ulimits:
       memlock: { soft: -1, hard: -1 }
+    depends_on:
+      init:
+        condition: service_completed_successfully
 {% include 'roles/docker-container/templates/networks.yml.j2' %}
 {% endif %}
 
 {% include 'roles/docker-compose/templates/volumes.yml.j2' %}
   data:
     name: {{ SHOPWARE_VOLUME }}
+  files:
+    name: {{ entity_name }}_files
+  theme:
+    name: {{ entity_name }}_theme
+  media:
+    name: {{ entity_name }}_media
+  thumbnail:
+    name: {{ entity_name }}_thumbnail
+  sitemap:
+    name: {{ entity_name }}_sitemap
 
 {% include 'roles/docker-compose/templates/networks.yml.j2' %}