def filter(self, record: LogRecord) -> bool:
"""
Sets two record attributes: celery parent and celery current.
Celery origin is the tracing ID of the process that spawned the current
process, and celery current is the current process' tracing ID.
In other words, if a worker sent a task to be executed by the worker pool,
that celery worker's `current` tracing ID would become the next worker's `origin` tracing ID.
"""
record.celery_parent_id: str = celery_parent.get() # type: ignore
record.celery_current_id: str = celery_current.get() # type: ignore
return True
def publish_task_from_worker_or_request(headers: dict, **kwargs) -> None:
"""
Called when a request or celery worker publishes a task to the worker pool
by calling task.delay(), task.apply_async() or using another equivalent method.
This is where we transfer state from a parent process to a child process.
"""
guid = get_guid()
logger.info('Setting task request header as %s', guid)
headers[settings.guid_header_name] = guid
if settings.integration_settings.celery.log_parent:
current = celery_current.get()
if current:
headers[parent_header] = current
def test_cleanup(monkeypatch, mocker: MockerFixture):
"""
Test that cleanup works as expected
"""
set_guid('123')
celery_current.set('123')
celery_parent.set('123')
mocked_settings = deepcopy(django_settings.DJANGO_GUID)
mocked_settings['INTEGRATIONS'] = [CeleryIntegration(log_parent=True)]
with override_settings(DJANGO_GUID=mocked_settings):
settings = Settings()
monkeypatch.setattr('django_guid.integrations.celery.signals.settings',
settings)
clean_up(task=mocker.Mock())
assert [get_guid(), celery_current.get(),
celery_parent.get()] == [None, None, None]
def test_worker_prerun_guid_log_parent_with_origin(monkeypatch,
mocker: MockerFixture,
mock_uuid_two_unique):
"""
Tests that depth works when there is an origin
"""
from django_guid.integrations.celery.signals import parent_header
mock_task = mocker.Mock()
mock_task.request = {
'Correlation-ID': None,
parent_header: '1234'
} # No origin
mocked_settings = deepcopy(django_settings.DJANGO_GUID)
mocked_settings['INTEGRATIONS'] = [CeleryIntegration(log_parent=True)]
with override_settings(DJANGO_GUID=mocked_settings):
settings = Settings()
monkeypatch.setattr('django_guid.integrations.celery.signals.settings',
settings)
worker_prerun(mock_task)
assert get_guid() == '704ae5472cae4f8daa8f2cc5a5a8mock'
assert celery_current.get() == 'c494886651cd4baaa8654e4d24a8mock'
assert celery_parent.get() == '1234'