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fix: Cleanup prometheus metrics for dead workers

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The current "cleanup" function that is removing orphan prometheus files
is actually never invoked.
We move this to a default gunicorn config file to register our hook(s).

https://docs.gunicorn.org/en/stable/configure.html
https://docs.gunicorn.org/en/stable/settings.html#child-exit
Signed-off-by: moson <moson@archlinux.org>
This commit is contained in:
moson 2023-08-18 22:04:55 +02:00
parent f05f1dbac7
commit 3005e82f60
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GPG key ID: 4A4760AB4EE15296
2 changed files with 7 additions and 7 deletions
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7
aurweb/asgi.py
View file

@ -13,7 +13,6 @@ from fastapi import FastAPI, HTTPException, Request, Response
from fastapi.responses import RedirectResponse
from fastapi.staticfiles import StaticFiles
from jinja2 import TemplateNotFound
from prometheus_client import multiprocess
from sqlalchemy import and_
from starlette.exceptions import HTTPException as StarletteHTTPException
from starlette.middleware.authentication import AuthenticationMiddleware
@ -91,12 +90,6 @@ async def app_startup():
get_engine()
def child_exit(server, worker): # pragma: no cover
"""This function is required for gunicorn customization
of prometheus multiprocessing."""
multiprocess.mark_process_dead(worker.pid)
async def internal_server_error(request: Request, exc: Exception) -> Response:
"""
Catch all uncaught Exceptions thrown in a route.

7
gunicorn.conf.py Normal file
View file

@ -0,0 +1,7 @@
from prometheus_client import multiprocess
def child_exit(server, worker): # pragma: no cover
"""This function is required for gunicorn customization
of prometheus multiprocessing."""
multiprocess.mark_process_dead(worker.pid)