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quay/workers/diffsworker.py

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1.7 KiB
Python

import logging
import daemon
import argparse
from data.queue import image_diff_queue
from data.model import DataModelException
from endpoints.registry import process_image_changes
from workers.worker import Worker
root_logger = logging.getLogger('')
root_logger.setLevel(logging.DEBUG)
FORMAT = '%(asctime)-15s - %(levelname)s - %(pathname)s - %(funcName)s - %(message)s'
formatter = logging.Formatter(FORMAT)
logger = logging.getLogger(__name__)
class DiffsWorker(Worker):
def process_queue_item(self, job_details):
image_id = job_details['image_id']
namespace = job_details['namespace']
repository = job_details['repository']
try:
process_image_changes(namespace, repository, image_id)
except DataModelException:
# This exception is unrecoverable, and the item should continue and be
# marked as complete.
msg = ('Image does not exist in database \'%s\' for repo \'%s/\'%s\'' %
(image_id, namespace, repository))
logger.warning(msg)
return True
parser = argparse.ArgumentParser(description='Worker daemon to compute diffs')
parser.add_argument('-D', action='store_true', default=False,
help='Run the worker in daemon mode.')
parser.add_argument('--log', default='diffsworker.log',
help='Specify the log file for the worker as a daemon.')
args = parser.parse_args()
worker = DiffsWorker(image_diff_queue)
if args.D:
handler = logging.FileHandler(args.log)
handler.setFormatter(formatter)
root_logger.addHandler(handler)
with daemon.DaemonContext(files_preserve=[handler.stream]):
worker.start()
else:
handler = logging.StreamHandler()
handler.setFormatter(formatter)
root_logger.addHandler(handler)
worker.start()