feat: 更新 README 和後端 CORS 設定

README.md

@@ -9,6 +9,28 @@ Lithium Player 是一個現代化的多媒體播放應用程式，支援音樂
 ```sh
 git clone https://github.com/cl0udlab/Lithium-player
 cd lithium-player
+vim docker-compose.yml # 修改compose文件
+```
+
+```yml
+backend:
+    image: phillychi3/lithium-player-backend:latest
+    container_name: lithium-backend
+    volumes:
+        - backend:/app/data
+        - C:\Users\user\Music:/media # 前面換成自己的音樂目錄
+    ports:
+        - "8000:8000"
+    environment:
+        SQLIP: postgres
+        APP_URL: 前端的網址(如果有的話
+    networks:
+        - lithium-network
+    depends_on:
+        - postgres
+```
+
+```sh
 docker-compose up -d
 ```
 

backend/src/main.py

@@ -1,5 +1,7 @@
 from dotenv import load_dotenv
+
 load_dotenv()
+import os
 from db import engine, SQLModel
 from fastapi import FastAPI
 import json
@@ -39,14 +41,18 @@ def ping():
 app.include_router(setting_router)
 logger.info("Server started")
 
+cors = [
+    "http://localhost:5173",
+    "http://localhost:3000",
+    "https://localhost",
+    "http://localhost:80",
+    os.getenv("APP_URL"),
+]
+cors = [url for url in cors if url]
+
 app.add_middleware(
     CORSMiddleware,
-    allow_origins=[
-        "http://localhost:5173",
-        "http://localhost:3000",
-        "https://localhost",
-        "http://localhost:80",
-    ],
+    allow_origins=cors,
     allow_credentials=True,
     allow_methods=["*"],
     allow_headers=["*"],