freeleaps-service-hub/apps/devops/app/providers/message_queue.py
zhenyus 2dd73c0734 refactor: enhance lazy initialization and error handling in message consumer startup
Updated the message consumer initialization to occur lazily during the startup event, improving application startup performance. Added detailed logging for service initialization, registration, and error handling to enhance traceability and robustness during startup and shutdown processes.

Signed-off-by: zhenyus <zhenyus@mathmast.com>
2025-08-03 03:01:11 +08:00

57 lines
2.6 KiB
Python

import asyncio
from app.backend.infra.rabbitmq.async_subscriber import AsyncMQSubscriber
from app.backend.services.deployment_status_update_service import DeploymentStatusUpdateService
def register(app):
# Initialize the message subscriber and status update service lazily to avoid blocking startup
app.deployment_heartbeat_subscriber = None
app.deployment_status_service = None
@app.on_event("startup")
async def start_message_consumers():
print("🚀 Starting message consumers...")
try:
# Initialize services during startup to avoid blocking app initialization
print("🔧 Initializing services...")
app.deployment_heartbeat_subscriber = AsyncMQSubscriber("devops_reconcile_heartbeat")
app.deployment_status_service = DeploymentStatusUpdateService()
print("✅ Services initialized")
# Register the heartbeat processor
print("📝 Registering deployment heartbeat processor...")
await app.deployment_heartbeat_subscriber.register_consumer(
registry_key="deployment_heartbeat_processor",
callback_method=app.deployment_status_service.process_heartbeat_message,
args={}
)
print("✅ Registered deployment heartbeat processor")
# Start the subscriber in the background
print("🔄 Starting subscriber in background...")
loop = asyncio.get_running_loop()
loop.create_task(
app.deployment_heartbeat_subscriber.subscribe(max_retries=5, event_loop=loop)
)
print("✅ Started deployment heartbeat subscriber")
print("🎉 Message consumers startup complete!")
except Exception as e:
print(f"❌ Error in message consumer startup: {e}")
# Don't raise the exception to prevent app startup failure
print("⚠️ App will continue without message queue functionality")
@app.on_event("shutdown")
async def stop_message_consumers():
# Clear consumers and close connection
print("Stopping message consumers")
if app.deployment_heartbeat_subscriber:
try:
await app.deployment_heartbeat_subscriber.clear_all_consumers()
print("Cleared all consumers")
await app.deployment_heartbeat_subscriber.close()
print("Closed deployment heartbeat subscriber")
except Exception as e:
print(f"Error during shutdown: {e}")
else:
print("No message consumers to stop")