finally fixed ...

dc_files/build_and_run.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Build images
+docker build -t demo-frontend ../frontend
+docker build -t demo-backend ../backend
+
+# Create network if it doesn't exist
+docker network create demo-network || true
+
+# Start PostgreSQL
+docker run -d \
+    --name demo-db \
+    --network demo-network \
+    -e POSTGRES_DB=todo_db \
+    -e POSTGRES_USER=postgres \
+    -e POSTGRES_PASSWORD=postgres \
+    -p 5432:5432 \
+    -v postgres_data:/var/lib/postgresql/data \
+    postgres:13
+
+# Start Backend
+docker run -d \
+    --name demo-backend \
+    --network demo-network \
+    -e DB_NAME=todo_db \
+    -e DB_USER=postgres \
+    -e DB_PASSWORD=postgres \
+    -e DB_HOST=demo-db \
+    -e DB_PORT=5432 \
+    -e DEBUG=1 \
+    -p 8000:8000 \
+    demo-backend
+
+# Start Frontend
+docker run -d \
+    --name demo-frontend \
+    --network demo-network \
+    -e VITE_API_URL=http://localhost:8000/api \
+    -p 5173:5173 \
+    demo-frontend

docker-compose.yml

@@ -1,5 +1,6 @@
 services:
   db:
+    container_name: demo-db
     image: postgres:13
     volumes:
       - postgres_data:/var/lib/postgresql/data
@@ -12,8 +13,8 @@ services:
 
   backend:
     build:
-      context: ../backend/
+      context: ${PWD}/../backend/
-      dockerfile: Dockerfile
+      # dockerfile: Dockerfile
       #    entrypoint: ["${PWD}/../backend/entrypoint.sh"]
     command: sh -c "python manage.py migrate && python manage.py runserver 0.0.0.0:8000"
     ports:
@@ -30,8 +31,8 @@ services:
 
   frontend:
     build:
-      context: ../frontend
+      context: ${PWD}/../frontend
-      dockerfile: Dockerfile
+      #      dockerfile: Dockerfile
 #    entrypoint: ["${PWD}/../frontend/entrypoint.sh"]
     command: sh -c "npm run dev -- --host 0.0.0.0"
     ports: