zammad(host): change to .env configuration

Align the compose.yaml to upstreams v11.2.0 version.
This is a first step to hopefully then just use the upstreams version
directly and not vendor it.

inventories/chaosknoten/host_vars/zammad.yaml

@@ -1,4 +1,5 @@
-docker_compose__compose_file_content: "{{ lookup('ansible.builtin.template', 'resources/chaosknoten/zammad/docker_compose/compose.yaml.j2') }}"
+docker_compose__compose_file_content: "{{ lookup('ansible.builtin.file', 'resources/chaosknoten/zammad/docker_compose/compose.yaml') }}"
+docker_compose__env_file_content: "{{ lookup('ansible.builtin.template', 'resources/chaosknoten/zammad/docker_compose/.env.j2') }}"
 docker_compose__configuration_files: [ ]
 
 certbot__version_spec: ""

resources/chaosknoten/zammad/docker_compose/.env.j2

@@ -0,0 +1,15 @@
+ELASTICSEARCH_VERSION=8.19.4
+IMAGE_REPO=ghcr.io/zammad/zammad
+MEMCACHE_SERVERS=zammad-memcached:11211
+MEMCACHE_VERSION=1.6-alpine
+POSTGRES_DB=zammad_production
+POSTGRES_PASS={{ secret__zammad_db_password }}
+POSTGRES_USER=zammad
+POSTGRES_HOST=zammad-postgresql
+POSTGRES_PORT=5432
+POSTGRES_VERSION=15-alpine
+REDIS_URL=redis://zammad-redis:6379
+REDIS_VERSION=7-alpine
+RESTART=always
+VERSION=6
+NGINX_SERVER_SCHEME=https

resources/chaosknoten/zammad/docker_compose/compose.yaml

@@ -1,33 +1,16 @@
 ---
-{#
-https://github.com/zammad/zammad-docker-compose
-Docker Compose does not allow defining variables in the compose file (only in .env files), so we use Jinja variables instead
-see https://github.com/zammad/zammad-docker-compose/blob/master/.env
-#}
-{%- set ELASTICSEARCH_VERSION = "8.19.4" | quote -%}
-{%- set IMAGE_REPO = "ghcr.io/zammad/zammad" | quote -%}
-{%- set MEMCACHE_SERVERS = "zammad-memcached:11211" | quote -%}
-{%- set MEMCACHE_VERSION = "1.6-alpine" | quote -%}
-{%- set POSTGRES_DB = "zammad_production" | quote -%}
-{%- set POSTGRES_HOST = "zammad-postgresql" | quote -%}
-{%- set POSTGRES_USER = "zammad" | quote -%}
-{%- set POSTGRES_PASS = secret__zammad_db_password | quote -%}
-{%- set POSTGRES_PORT = "5432" | quote -%}
-{%- set POSTGRES_VERSION = "15-alpine" | quote -%}
-{%- set REDIS_URL = "redis://zammad-redis:6379" | quote -%}
-{%- set REDIS_VERSION = "7-alpine" | quote -%}
-{%- set RESTART = "always" | quote -%}
-{%- set VERSION = "6" | quote -%}
+version: '3.8'
+
 x-shared:
   zammad-service: &zammad-service
     environment: &zammad-environment
-      MEMCACHE_SERVERS: {{ MEMCACHE_SERVERS }}
-      POSTGRESQL_DB: {{ POSTGRES_DB }}
-      POSTGRESQL_HOST: {{ POSTGRES_HOST }}
-      POSTGRESQL_USER: {{ POSTGRES_USER }}
-      POSTGRESQL_PASS: {{ POSTGRES_PASS }}
-      POSTGRESQL_PORT: {{ POSTGRES_PORT }}
-      REDIS_URL: {{ REDIS_URL }}
+      MEMCACHE_SERVERS: ${MEMCACHE_SERVERS}
+      POSTGRESQL_DB: ${POSTGRES_DB}
+      POSTGRESQL_HOST: ${POSTGRES_HOST}
+      POSTGRESQL_USER: ${POSTGRES_USER}
+      POSTGRESQL_PASS: ${POSTGRES_PASS}
+      POSTGRESQL_PORT: ${POSTGRES_PORT}
+      REDIS_URL: ${REDIS_URL}
       # Allow passing in these variables via .env:
       AUTOWIZARD_JSON:
       AUTOWIZARD_RELATIVE_PATH:
@@ -40,7 +23,7 @@ x-shared:
       ELASTICSEARCH_SSL_VERIFY:
       NGINX_PORT:
       NGINX_SERVER_NAME:
-      NGINX_SERVER_SCHEME: https
+      NGINX_SERVER_SCHEME:
       POSTGRESQL_DB_CREATE:
       POSTGRESQL_OPTIONS:
       RAILS_TRUSTED_PROXIES:
@@ -48,8 +31,8 @@ x-shared:
       ZAMMAD_SESSION_JOBS:
       ZAMMAD_PROCESS_SCHEDULED:
       ZAMMAD_PROCESS_DELAYED_JOBS_WORKERS:
-    image: {{ IMAGE_REPO }}:{{ VERSION }}
-    restart: {{ RESTART }}
+    image: ${IMAGE_REPO}:${VERSION}
+    restart: ${RESTART}
     volumes:
       - zammad-storage:/opt/zammad/storage
       - zammad-var:/opt/zammad/var
@@ -71,8 +54,8 @@ services:
       BACKUP_TIME: "03:00"
       HOLD_DAYS: "10"
       TZ: Europe/Berlin
-    image: postgres:{{ POSTGRES_VERSION }}
-    restart: {{ RESTART }}
+    image: postgres:${POSTGRES_VERSION}
+    restart: ${RESTART}
     volumes:
       - zammad-backup:/var/tmp/zammad
       - zammad-storage:/opt/zammad/storage:ro
@@ -80,8 +63,8 @@ services:
       - ./scripts/backup.sh:/usr/local/bin/backup.sh:ro
 
   zammad-elasticsearch:
-    image: elasticsearch:{{ ELASTICSEARCH_VERSION }}
-    restart: {{ RESTART }}
+    image: elasticsearch:${ELASTICSEARCH_VERSION}
+    restart: ${RESTART}
     volumes:
       - elasticsearch-data:/usr/share/elasticsearch/data
     environment:
@@ -102,8 +85,8 @@ services:
 
   zammad-memcached:
     command: memcached -m 256M
-    image: memcached:{{ MEMCACHE_VERSION }}
-    restart: {{ RESTART }}
+    image: memcached:${MEMCACHE_VERSION}
+    restart: ${RESTART}
 
   zammad-nginx:
     <<: *zammad-service
@@ -119,11 +102,11 @@ services:
 
   zammad-postgresql:
     environment:
-      POSTGRES_DB: {{ POSTGRES_DB }}
-      POSTGRES_USER: {{ POSTGRES_USER }}
-      POSTGRES_PASSWORD: {{ POSTGRES_PASS }}
-    image: postgres:{{ POSTGRES_VERSION }}
-    restart: {{ RESTART }}
+      POSTGRES_DB: ${POSTGRES_DB}
+      POSTGRES_USER: ${POSTGRES_USER}
+      POSTGRES_PASSWORD: ${POSTGRES_PASS}
+    image: postgres:${POSTGRES_VERSION}
+    restart: ${RESTART}
     volumes:
       - postgresql-data:/var/lib/postgresql/data
 
@@ -132,8 +115,8 @@ services:
     command: ["zammad-railsserver"]
 
   zammad-redis:
-    image: redis:{{ REDIS_VERSION }}
-    restart: {{ RESTART }}
+    image: redis:${REDIS_VERSION}
+    restart: ${RESTART}
     volumes:
       - redis-data:/data