airflow triggerer_command 源码
airflow triggerer_command 代码
文件路径：/airflow/cli/commands/triggerer_command.py
# Licensed to the Apache Software Foundation (ASF) under one
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# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
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"""Triggerer command"""
from __future__ import annotations
import signal
import daemon
from daemon.pidfile import TimeoutPIDLockFile
from airflow import settings
from airflow.jobs.triggerer_job import TriggererJob
from airflow.utils import cli as cli_utils
from airflow.utils.cli import setup_locations, setup_logging, sigint_handler, sigquit_handler
@cli_utils.action_cli
def triggerer(args):
"""Starts Airflow Triggerer"""
settings.MASK_SECRETS_IN_LOGS = True
print(settings.HEADER)
job = TriggererJob(capacity=args.capacity)
if args.daemon:
pid, stdout, stderr, log_file = setup_locations(
"triggerer", args.pid, args.stdout, args.stderr, args.log_file
)
handle = setup_logging(log_file)
with open(stdout, 'a') as stdout_handle, open(stderr, 'a') as stderr_handle:
stdout_handle.truncate(0)
stderr_handle.truncate(0)
ctx = daemon.DaemonContext(
pidfile=TimeoutPIDLockFile(pid, -1),
files_preserve=[handle],
stdout=stdout_handle,
stderr=stderr_handle,
umask=int(settings.DAEMON_UMASK, 8),
)
with ctx:
job.run()
else:
signal.signal(signal.SIGINT, sigint_handler)
signal.signal(signal.SIGTERM, sigint_handler)
signal.signal(signal.SIGQUIT, sigquit_handler)
job.run()
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