88 lines
2.8 KiB
Python
88 lines
2.8 KiB
Python
# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import os
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import requests
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from airflow.exceptions import AirflowException
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from airflow.models import BaseOperator
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from airflow.plugins_manager import AirflowPlugin
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from airflow.utils.decorators import apply_defaults
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from service_endpoint import ucp_service_endpoint
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class UcpHealthCheckOperator(BaseOperator):
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"""
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UCP Health Checks
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"""
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@apply_defaults
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def __init__(self,
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shipyard_conf,
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*args,
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**kwargs):
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super(UcpHealthCheckOperator, self).__init__(*args, **kwargs)
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self.shipyard_conf = shipyard_conf
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def execute(self, context):
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# Initialize variable
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# TODO: Include Promenade when its API endpoint is ready
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ucp_components = [
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'armada',
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'deckhand',
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'physicalprovisioner',
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'shipyard']
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# Loop through various UCP Components
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for i in ucp_components:
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# Define context 'svc_type'
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context['svc_type'] = i
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# Retrieve Endpoint Information
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context['svc_endpoint'] = ucp_service_endpoint(self, context)
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logging.info("%s endpoint is %s", i, context['svc_endpoint'])
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# Construct Health Check Endpoint
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healthcheck_endpoint = os.path.join(context['svc_endpoint'],
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'health')
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logging.info("%s healthcheck endpoint is %s", i,
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healthcheck_endpoint)
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try:
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logging.info("Performing Health Check on %s", i)
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# Set health check timeout to 30 seconds
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req = requests.get(healthcheck_endpoint, timeout=30)
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except requests.exceptions.RequestException as e:
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raise AirflowException(e)
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# UCP Component will return empty response/body to show that
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# it is healthy
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if req.status_code == 204:
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logging.info("%s is alive and healthy", i)
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else:
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logging.error(req.text)
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raise AirflowException("Invalid Response!")
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class UcpHealthCheckPlugin(AirflowPlugin):
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name = "ucp_healthcheck_plugin"
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operators = [UcpHealthCheckOperator]
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