werkzeug logs are filtered out by default

[stewartmiles]

Environment details

• OS type and version: Google Cloud Container Optimized OS (gke-12314-gke401-cos-93-16623-295-14-v221129-c-pre)

• Python version: 3.8.10

• pip version: 22.3.1

• google-cloud-logging version: 3.4.0

Steps to reproduce

1. Either use werkzeug for serving or configure a werkzeug logger
2. Setup a Google Cloud Logging Python client
3. Log to the werkzeug logger and notice that logs are not sent to Google Cloud Logging.

Code example

import logging
import google.cloud.logging

logger = logging.getLogger('werkzeug')

client = google.cloud.logging.Client()
client.setup_logging()
logger.info('hello from werkzeug')
logging.info('hello from the root logger')

This results in hello from werkzeug not being set to the global log.

Due to EXCLUDED_LOGGER_DEFAULTS werkzeug is excluded from the set of loggers that are sent to Google Cloud logging:

python-logging/google/cloud/logging_v2/handlers/handlers.py

Lines 27 to 33 in fceb6f3

	"""Exclude internal logs from propagating through handlers"""
	EXCLUDED_LOGGER_DEFAULTS = (
	"google.cloud",
	"google.auth",
	"google_auth_httplib2",
	"google.api_core.bidi",
	"werkzeug",

google.cloud.logging.Client.setup_logging() has an excluded_loggers kwarg but setting that does not change the set of loggers that are ignored by the library due to the default set being added back into the set of ignored loggers in

python-logging/google/cloud/logging_v2/handlers/handlers.py

Line 294 in fceb6f3

all_excluded_loggers = set(excluded_loggers + EXCLUDED_LOGGER_DEFAULTS)

The only workaround is to patch EXCLUDED_LOGGER_DEFAULTS to remove werkzeug from the list.