monasca-api/monasca_api/healthcheck/base.py
Artur Basiak 4e168edf6e Add healtcheck endpoint
Provide new healtcheck endpoint to monasca-api.
Add simple check for HEAD and complex check for GET.
Complex check contains information about dependent
services like:
- kafka
- relational database (mariadb, postgresql)
- timeseries database (influxdb, cassandra)

Story: 2000974
Task: 4125

Change-Id: I863071194041a512b144262bbffce5024b97086b
2017-05-30 11:30:56 +02:00

37 lines
1.1 KiB
Python

# Copyright 2017 FUJITSU LIMITED
#
# 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
class CheckResult(collections.namedtuple('CheckResult', ['healthy', 'message'])):
"""Result for the health check
healthy - boolean
message - string
"""
@six.add_metaclass(abc.ABCMeta)
class BaseHealthCheck(object):
"""Abstract class implemented by the monasca-api healthcheck classes"""
@abc.abstractmethod
def health_check(self):
"""Evaluate health of given service"""
raise NotImplementedError # pragma: no cover