36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
# Copyright 2011 OpenStack Foundation.
|
|
# All Rights Reserved.
|
|
#
|
|
# Licensed 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.
|
|
|
|
import abc
|
|
import collections
|
|
|
|
import six
|
|
|
|
HealthcheckResult = collections.namedtuple(
|
|
'HealthcheckResult', ['available', 'reason'])
|
|
|
|
|
|
@six.add_metaclass(abc.ABCMeta)
|
|
class HealthcheckBaseExtension(object):
|
|
def __init__(self, conf):
|
|
self.conf = conf
|
|
|
|
@abc.abstractmethod
|
|
def healthcheck(self, server_port):
|
|
"""method called by the healthcheck middleware
|
|
|
|
return: HealthcheckResult object
|
|
"""
|