chore: moved vars intro .env file for clarity

nextcloud/docker-compose.yml

@@ -25,11 +25,6 @@ services:
     environment:
       - MYSQL_HOST=nc_db
       - REDIS_HOST=nc_redis
-      - TRUSTED_PROXIES=172.16.0.0/12
-      - OVERWRITEHOST=cloud.example.com
-      - OVERWRITEPROTOCOL=https
-      - OVERWRITEWEBROOT=/
-      - PHP_UPLOAD_LIMIT=1G
     env_file:
       - nextcloud.env
     ports:

nextcloud/nextcloud.env

@@ -1,3 +1,14 @@
+# Database settings
 MYSQL_PASSWORD=
 MYSQL_DATABASE=
-MYSQL_USER=
+MYSQL_USER=
+
+# reverse proxy settings
+# if you're not a reverse proxy, you must uncomment the following lines
+TRUSTED_PROXIES=172.16.0.0/12
+OVERWRITEHOST=cloud.example.com
+OVERWRITEPROTOCOL=https
+OVERWRITEWEBROOT=/
+
+# PHP settings
+PHP_UPLOAD_LIMIT=1G