reluctantly use docker volume

nextcloud/docker-compose.yml

@@ -5,7 +5,7 @@ services:
     restart: always # This makes sure that the container starts always together with the host OS. See https://docs.docker.com/reference/compose-file/services/#restart
     container_name: nextcloud-aio-mastercontainer # This line is not allowed to be changed as otherwise AIO will not work correctly
     volumes:
-      - ${NEXTCLOUD_AIO_DIR}:/mnt/docker-aio-config # This line is not allowed to be changed as otherwise the built-in backup solution will not work
+      - nextcloud_aio_mastercontainer:/mnt/docker-aio-config # This line is not allowed to be changed as otherwise the built-in backup solution will not work
       - /var/run/docker.sock:/var/run/docker.sock:ro # May be changed on macOS, Windows or docker rootless. See the applicable documentation. If adjusting, don't forget to also set 'WATCHTOWER_DOCKER_SOCKET_PATH'!
     network_mode: bridge
     ports:
@@ -33,3 +33,8 @@ services:
       # NEXTCLOUD_KEEP_DISABLED_APPS: false # Setting this to true will keep Nextcloud apps that are disabled in the AIO interface and not uninstall them if they should be installed. See https://github.com/nextcloud/all-in-one#how-to-keep-disabled-apps
       # SKIP_DOMAIN_VALIDATION: false # This should only be set to true if things are correctly configured. See https://github.com/nextcloud/all-in-one#how-to-skip-the-domain-validation
       # TALK_PORT: 3478 # This allows to adjust the port that the talk container is using which is exposed on the host. See https://github.com/nextcloud/all-in-one#how-to-adjust-the-talk-port
+
+
+volumes: # If you want to store the data on a different drive, see https://github.com/nextcloud/all-in-one#how-to-store-the-filesinstallation-on-a-separate-drive
+  nextcloud_aio_mastercontainer:
+    name: nextcloud_aio_mastercontainer # This line is not allowed to be changed as otherwise the built-in backup solution will not work