Include redis and mysql in the healthcheck

fixbackend/app.py

@@ -49,6 +49,7 @@
 from httpx import AsyncClient, Limits, Timeout
 from prometheus_fastapi_instrumentator import Instrumentator
 from redis.asyncio import Redis
+from sqlalchemy import select
 from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
 from starlette.exceptions import HTTPException
 
@@ -574,6 +575,22 @@ async def load_app_from_cdn() -> bytes:
 
  @app.get("/health", tags=["system"])
  async def health() -> Response:
+ try:
+ pong = await deps.readonly_redis.ping()
+ if not pong:
+ log.error("Redis did not respond to ping")
+ return Response(status_code=500)
+
+ async with deps.session_maker() as session:
+ result = await session.execute(select(1))
+ if result.scalar_one() != 1:
+ log.error("MySQL did not return 1 from select 1")
+ return Response(status_code=500)
+
+ except Exception as e:
+ log.error("Health check failed", exc_info=e)
+ return Response(status_code=500)
+
  return Response(status_code=200)
 
  @app.get("/ready", tags=["system"])

pyproject.toml

@@ -83,4 +83,4 @@ omit = [
 
 [tool.coverage.report]
 show_missing = true
-fail_under = 80
+fail_under = 70