update

api/settings.py

@@ -101,14 +101,30 @@ PROD_DATABASES = {
         "NAME": os.getenv("POSTGRES_DB"),
         "USER": os.getenv("POSTGRES_USER"),
         "PASSWORD": os.getenv("POSTGRES_PASSWORD"),
-        "HOST": os.getenv("POSTGRES_HOST"),
+        "HOST": os.getenv("POSTGRES_HOST", "pgbouncer"),
+        "PORT": "5432",
+        # 由于使用了 PgBouncer，这里不需要保持长连接
+        "CONN_MAX_AGE": 0,
+        "OPTIONS": {
+            "application_name": "webpreview",  # 便于在数据库中识别应用
+            "sslmode": "disable",  # PgBouncer 不支持 SSL
+        },
     },
 }
 
 PROD_CACHES = {
     "default": {
-        "BACKEND": "django.core.cache.backends.db.DatabaseCache",
-        "LOCATION": "webpreview_api_cache",
+        "BACKEND": "django.core.cache.backends.redis.RedisCache",
+        "LOCATION": os.getenv("REDIS_URL", "redis://webpreview-redis:6379/1"),
+        "OPTIONS": {
+            "CLIENT_CLASS": "django_redis.client.DefaultClient",
+            "CONNECTION_POOL_KWARGS": {"max_connections": 50},
+            "SOCKET_CONNECT_TIMEOUT": 5,  # 连接超时时间
+            "SOCKET_TIMEOUT": 5,  # 读写超时时间
+            "RETRY_ON_TIMEOUT": True,  # 超时时重试
+            "MAX_CONNECTIONS": 1000,  # 连接池最大连接数
+            "HEALTH_CHECK_INTERVAL": 30,  # 健康检查间隔
+        },
     }
 }
 
@@ -116,7 +132,12 @@ if DEBUG:
     DATABASES = DEV_DATABASES
 else:
     DATABASES = PROD_DATABASES
+    # 使用 Redis 作为会话存储
     SESSION_ENGINE = "django.contrib.sessions.backends.cache"
+    SESSION_CACHE_ALIAS = "default"
+    # 设置会话过期时间（24小时）
+    SESSION_COOKIE_AGE = 86400
+    # 配置缓存
     CACHES = PROD_CACHES
 
 # Password validation