healthchecks.py 文件源码

def _get_hostname(self):
        """ Try to determine the hostname to use when making the healthcheck request
        :return: string
        :raises HealthcheckError """

        # First look in settings.HEALTHCHECKS['HOSTNAME']
        try:
            if _get_setting('HOSTNAME'):
                return _get_setting('HOSTNAME')
        except HealthcheckError:
            pass

        # Then try settings.HOSTNAME, if it exists
        try:
            if hasattr(settings, 'HOSTNAME') and len(settings.HOSTNAME):
                return settings.HOSTNAME
        except (AttributeError, TypeError):
            pass

        # Finally, pop the first value from settings.ALLOWED_HOSTS
        try:
            if hasattr(settings, 'ALLOWED_HOSTS') and len(settings.ALLOWED_HOSTS):
                return settings.ALLOWED_HOSTS[0]
        except (AttributeError, TypeError, KeyError):
            pass

        raise HealthcheckError(
            'Error: Could not determine hostname from settings.HEALTHCHECKS["HOSTNAME"], '
            'settings.HOSTNAME or settings.ALLOWED_HOSTS'
        )