frontend/Dockerfile

@@ -12,7 +12,9 @@ RUN npm ci
 # Copy source code
 COPY . .
 
-# Build the app
+# Build the app with environment variables
+ARG REACT_APP_API_BASE_URL
+ENV REACT_APP_API_BASE_URL=$REACT_APP_API_BASE_URL
 RUN npm run build
 
 # Production stage

frontend/docker-compose.yml

@@ -5,14 +5,15 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
+      args:
+        - REACT_APP_API_BASE_URL=${REACT_APP_API_BASE_URL}
     ports:
       - "80:80"
     env_file:
       - .env
     environment:
       - NODE_ENV=production
-      # Add your environment variables here
-      # - REACT_APP_API_URL=http://api.example.com
+      - REACT_APP_API_BASE_URL=${REACT_APP_API_BASE_URL}
     restart: unless-stopped
     networks:
       - app-network