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quay/workers/diffsworker.py

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1.9 KiB
Python

import logging
import json
import daemon
import time
import argparse
from apscheduler.scheduler import Scheduler
from data.queue import image_diff_queue
from data.database import db as db_connection
from endpoints.registry import process_image_changes
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__)
def process_work_items():
logger.debug('Getting work item from queue.')
item = image_diff_queue.get()
while item:
logger.debug('Queue gave us some work: %s' % item.body)
request = json.loads(item.body)
process_image_changes(request['namespace'], request['repository'],
request['image_id'])
image_diff_queue.complete(item)
item = image_diff_queue.get()
logger.debug('No more work.')
if not db_connection.is_closed():
logger.debug('Closing thread db connection.')
db_connection.close()
def start_worker():
logger.debug("Scheduling worker.")
sched = Scheduler()
sched.start()
sched.add_interval_job(process_work_items, seconds=30)
while True:
time.sleep(60 * 60 * 24) # sleep one day, basically forever
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()
if args.D:
handler = logging.FileHandler(args.log)
handler.setFormatter(formatter)
root_logger.addHandler(handler)
with daemon.DaemonContext(files_preserve=[handler.stream]):
start_worker()
else:
handler = logging.StreamHandler()
handler.setFormatter(formatter)
root_logger.addHandler(handler)
start_worker()