remove crappy volume stuff

compose.yml

@@ -51,7 +51,7 @@ services:
             - POSTGRES_DB=${INVENTREE_DB_NAME:?You must provide the 'INVENTREE_DB_NAME' variable in the .env file}
         volumes:
             # Map 'data' volume such that postgres database is stored externally
-            - inventree_data:/var/lib/postgresql/data/:z
+            - ${INVENTREE_EXT_VOLUME:?You must specify the 'INVENTREE_EXT_VOLUME' variable in the .env file!}:/var/lib/postgresql/data/:z
         restart: unless-stopped
 
     # redis acts as database cache manager
@@ -98,7 +98,7 @@ services:
             - inventree-db
         volumes:
             # Data volume must map to /home/inventree/data
-            - inventree_data:/home/inventree/data:z
+            - ${INVENTREE_EXT_VOLUME:?You must specify the 'INVENTREE_EXT_VOLUME' variable in the .env file!}:/home/inventree/data:z
             - ./plugins:/home/inventree/InvenTree/plugins:z
         restart: unless-stopped
 
@@ -114,7 +114,7 @@ services:
             - .env
         volumes:
             # Data volume must map to /home/inventree/data
-            - inventree_data:/home/inventree/data:z
+            - ${INVENTREE_EXT_VOLUME:?You must specify the 'INVENTREE_EXT_VOLUME' variable in the .env file!}:/home/inventree/data:z
         restart: unless-stopped
 
     # nginx acts as a reverse proxy
@@ -135,15 +135,5 @@ services:
             # Refer to the provided example file as a starting point
             - ./nginx.prod.conf:/etc/nginx/conf.d/default.conf:ro,Z
             # nginx proxy needs access to static and media files
-            - inventree_data:/var/www:z
+            - ${INVENTREE_EXT_VOLUME:?You must specify the 'INVENTREE_EXT_VOLUME' variable in the .env file!}:/var/www:z
         restart: unless-stopped
-
-volumes:
-    # Persistent data, stored external to the container(s)
-    inventree_data:
-        driver: local
-        driver_opts:
-            type: none
-            o: bind
-            # This directory specified where InvenTree data are stored "outside" the docker containers
-            device: ${INVENTREE_EXT_VOLUME:?You must specify the 'INVENTREE_EXT_VOLUME' variable in the .env file!}