Source code for

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import importlib
import socket
from airflow.configuration import (conf, AirflowConfigException)

[docs]def get_hostname(): """ Fetch the hostname using the callable from the config or using `socket.getfqdn` as a fallback. """ # First we attempt to fetch the callable path from the config. try: callable_path = conf.get('core', 'hostname_callable') except AirflowConfigException: callable_path = None # Then we handle the case when the config is missing or empty. This is the # default behavior. if not callable_path: return socket.getfqdn() # Since we have a callable path, we try to import and run it next. module_path, attr_name = callable_path.split(':') module = importlib.import_module(module_path) callable = getattr(module, attr_name) return callable()