Bug: Custom LoggingConfig only applies when running with --debug

[JonathanCroenen]

Description

When using a custom logging config (that mostly reuses litestar defaults with some minor changes), the log output uses the default config as if none was provided unless running with litestar run --debug. Running with --debug uses the expected format and filter as defined in the config.

URL to code causing the issue

No response

MCVE

import logging

from litestar.logging import LoggingConfig
from litestar import Litestar, get
from litestar.status_codes import HTTP_204_NO_CONTENT


class HeartbeatFilter(logging.Filter):
    def filter(self, record: logging.LogRecord) -> bool:
        return record.getMessage().find("GET /heartbeat") == -1


logging_config = LoggingConfig(
    version=1,
    logging_module="logging",
    disable_existing_loggers=False,
    filters={
        "heartbeat": {
            "()": HeartbeatFilter,
        },
    },
    handlers={
        "queue_listener": {
            "class": "litestar.logging.standard.QueueListenerHandler",
            "handlers": [
                logging.StreamHandler(),
            ],
            "formatter": "standard",
            "filters": ["heartbeat"],
        },
    },
    loggers={
        "": {"handlers": ["queue_listener"], "propagate": False},
        "litestar": {"handlers": ["queue_listener"], "propagate": False},
        "uvicorn": {"handlers": ["queue_listener"], "propagate": False},
    },
    root={
        "handlers": ["queue_listener"],
        "level": "INFO",
    },
)


@get("/heartbeat", status_code=HTTP_204_NO_CONTENT, sync_to_thread=False)
def heartbeat() -> None:
    return None


app = Litestar(
    path="/",
    route_handlers=[
        heartbeat,
    ],
    logging_config=logging_config,
)

Steps to reproduce

1. Run the example with `litestar run`.
2. Observe the default litestar log outputs when for example performing `curl localhost:8000/heartbeat` (colors + filter does not work).
3. Run the example with `litestar run -d` or `litestar run -r`.
4. Observe the expected changes in logging format and the filtering of logs relating to `/heartbeat` when performing `curl localhost:8000/heartbeat`.

Screenshots

No response

Logs

No response

Litestar Version

$ pip list | grep litestar
-> litestar           2.14.0
$ python --version
-> Python 3.11.11

Platform

• Linux
• Mac
• Windows
• Other (Please specify in the description above)

[JonathanCroenen]

Maybe related to #1804 ?