Huge role refactoring/cleanup. Other commits will propably follow. Because some bugs will exist. Still important for longrun and also for auto docs/help/slideshow generation

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

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+# @See https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/config_sample_php_parameters.html
+# @See https://github.com/nextcloud/docker/blob/master/README.md
+
+# Database Configuration
+MYSQL_DATABASE=                 "{{database_name}}"
+MYSQL_USER=                     "{{database_username}}"
+MYSQL_PASSWORD=                 "{{database_password}}"
+MYSQL_HOST=                     "{{database_host}}:{{database_port}}"
+      
+# PHP
+PHP_MEMORY_LIMIT=               "{{applications[application_id].performance.php.memory_limit}}"
+PHP_UPLOAD_LIMIT=               "{{applications[application_id].performance.php.upload_limit}}"
+PHP_OPCACHE_MEMORY_CONSUMPTION= "{{applications[application_id].performance.php.opcache_memory_consumption}}"
+      
+# Email Configuration
+SMTP_HOST=                      {{system_email.host}}
+SMTP_SECURE=                    {{ 'ssl' if system_email.tls else '' }}
+SMTP_PORT=                      {{system_email.port}}
+SMTP_NAME=                      {{ users['no-reply'].email }}
+SMTP_PASSWORD=                  {{ users['no-reply'].mailu_token }}
+
+# Email from configuration
+MAIL_FROM_ADDRESS=              "{{ users['no-reply'].username }}"
+MAIL_DOMAIN=                    "{{system_email.domain}}"
+
+# Initial Admin Data
+NEXTCLOUD_ADMIN_USER=           "{{applications[application_id].users.administrator.username}}"
+NEXTCLOUD_ADMIN_PASSWORD=       "{{applications[application_id].credentials.administrator_password}}"
+
+# Security
+
+NEXTCLOUD_TRUSTED_DOMAINS=      "{{domains | get_domain(application_id)}}"
+# Whitelist local docker gateway in Nextcloud to prevent brute-force throtteling
+TRUSTED_PROXIES=                "{{ networks.internet.values() | select | join(',') }}"
+OVERWRITECLIURL=                "{{ domains | get_url(application_id, web_protocol) }}"
+OVERWRITEPROTOCOL=              "https"
+
+# Redis Configuration
+REDIS_HOST=                     redis
+REDIS_PORT=                     6379