| # |
| # 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")() |