增加celery任务队列，任务持久化（服务重启不丢）、支持多 Worker 水平扩展、失败自动重试

src/celery_app.py

@@ -0,0 +1,34 @@
+import os
+from dotenv import load_dotenv
+from celery import Celery
+
+load_dotenv()
+
+redis_host = os.getenv("REDIS_HOST", "localhost")
+redis_port = os.getenv("REDIS_PORT", "6379")
+redis_password = os.getenv("REDIS_PASSWORD", "")
+redis_db = os.getenv("REDIS_DB", "0")
+
+if redis_password:
+    broker_url = f"redis://:{redis_password}@{redis_host}:{redis_port}/{redis_db}"
+else:
+    broker_url = f"redis://{redis_host}:{redis_port}/{redis_db}"
+
+app = Celery(
+    "moldinsight",
+    broker=broker_url,
+    backend=broker_url,
+    include=["celery_tasks"],
+)
+
+app.conf.update(
+    task_serializer="json",
+    result_serializer="json",
+    accept_content=["json"],
+    task_acks_late=True,
+    worker_prefetch_multiplier=1,
+    task_track_started=True,
+    task_soft_time_limit=1800,
+    task_time_limit=2100,
+    broker_connection_retry_on_startup=True,
+)