diff --git a/docker-compose.yml b/docker-compose.yml
index 4c8798f..a13fc36 100644
--- a/docker-compose.yml
+++ b/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
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..fbb08ba
--- /dev/null
+++ b/main.py
@@ -0,0 +1 @@
+print("hello py")
\ No newline at end of file