airflow net 源码
airflow net 代码
文件路径：/airflow/utils/net.py
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# 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
# under the License.
from __future__ import annotations
import socket
from functools import lru_cache
from airflow.configuration import conf
# patched version of socket.getfqdn() - see https://github.com/python/cpython/issues/49254
@lru_cache(maxsize=None)
def getfqdn(name=''):
"""Get fully qualified domain name from name.
An empty argument is interpreted as meaning the local host.
"""
name = name.strip()
if not name or name == '0.0.0.0':
name = socket.gethostname()
try:
addrs = socket.getaddrinfo(name, None, 0, socket.SOCK_DGRAM, 0, socket.AI_CANONNAME)
except OSError:
pass
else:
for addr in addrs:
if addr[3]:
name = addr[3]
break
return name
def get_host_ip_address():
"""Fetch host ip address."""
return socket.gethostbyname(getfqdn())
def get_hostname():
"""
Fetch the hostname using the callable from the config or using
`airflow.utils.net.getfqdn` as a fallback.
"""
return conf.getimport('core', 'hostname_callable', fallback='airflow.utils.net.getfqdn')()
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