Implemented a new docker compose structure which seperates between docker compose files and environment variable file to protect credentials better. Also did recatoring. Changes not fully tested

roles/docker-nextcloud/templates/env.j2

@@ -0,0 +1,21 @@
+# See https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/config_sample_php_parameters.html
+
+# Database Configuration
+MYSQL_DATABASE= "{{database_name}}"
+MYSQL_USER=     "{{database_username}}"
+MYSQL_PASSWORD= "{{database_password}}"
+MYSQL_HOST=     "{{database_host}}:{{database_port}}"
+      
+# Memory
+PHP_MEMORY_LIMIT= 1G # Required for plugin duplicate finder
+      
+# Email Configuration
+SMTP_HOST=      {{system_email.host}}
+SMTP_SECURE=    {{ 'ssl' if system_email.tls else '' }}
+SMTP_PORT=      {{system_email.smtp_port}}
+SMTP_NAME=      {{system_email.username}}
+SMTP_PASSWORD=  {{system_email.password}}
+
+# Email from configuration
+MAIL_FROM_ADDRESS= no-reply
+MAIL_DOMAIN= {{system_email.domain}}