не факт что заработает) в5

docker-compose.yml

@@ -1,3 +1,5 @@
+version: '3.8'
+
 services:
   frontend:
     build:
@@ -21,15 +23,16 @@ services:
       - ./backend:/app
       - sqlite_data:/app/instance
     ports:
-      - "8081:8000"
+      - "8000:8000"
 
   nginx:
     build:
-      context: ./docker/nginx
+      context: .
+      dockerfile: docker/nginx/Dockerfile
     container_name: support-nginx
     restart: unless-stopped
     ports:
-      - "8080:80"
+      - "80:80"
     depends_on:
       - frontend
       - backend