t2

docker-compose.yml

@@ -2,13 +2,11 @@ version: "3.8"
 
 services:
   app:
-    build: .
+    image: demo:latest
     container_name: python_app
     restart: always
     ports:
       - "8000:8000"
     environment:
       - PYTHONUNBUFFERED=1
-    volumes:
-      - .:/app
     command: python main.py

main.py

@@ -0,0 +1 @@
+print("hello py")