shipyard/shipyard_airflow/plugins/ucp_preflight_check_operator.py
Anthony Lin a90d9fa737 Update Armada Operator
This P.S. will add 'validate site design' workflow to the
Armada Operator. We will make use of the /validatedesign
endpoint in Armada for this purpose.

We will also make use of deckhand reference url instead of
nginx server to retrieve the YAMLs and will remove the existing
'armada_validate' step as that would be done during the initial
stage where the site design is validated.

The reference to the genesis node in the Drydock operator will
be removed as it is no longer needed.

Change-Id: I63e9bcd44d814d12db866032dd56fdfdc28d7b4d
2018-01-08 15:09:54 -05:00

85 lines
2.7 KiB
Python

# Copyright 2017 AT&T Intellectual Property. All other 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 logging
import os
import requests
from airflow.exceptions import AirflowException
from airflow.models import BaseOperator
from airflow.plugins_manager import AirflowPlugin
from airflow.utils.decorators import apply_defaults
from service_endpoint import ucp_service_endpoint
class UcpHealthCheckOperator(BaseOperator):
"""
UCP Health Checks
"""
@apply_defaults
def __init__(self,
shipyard_conf,
*args,
**kwargs):
super(UcpHealthCheckOperator, self).__init__(*args, **kwargs)
self.shipyard_conf = shipyard_conf
def execute(self, context):
# Initialize variable
ucp_components = [
'armada',
'deckhand',
'kubernetesprovisioner',
'physicalprovisioner',
'shipyard']
# Loop through various UCP Components
for i in ucp_components:
# Retrieve Endpoint Information
service_endpoint = ucp_service_endpoint(self, svc_type=i)
logging.info("%s endpoint is %s", i, service_endpoint)
# Construct Health Check Endpoint
healthcheck_endpoint = os.path.join(service_endpoint,
'health')
logging.info("%s healthcheck endpoint is %s", i,
healthcheck_endpoint)
try:
logging.info("Performing Health Check on %s", i)
# Set health check timeout to 30 seconds
req = requests.get(healthcheck_endpoint, timeout=30)
except requests.exceptions.RequestException as e:
raise AirflowException(e)
# UCP Component will return empty response/body to show that
# it is healthy
if req.status_code == 204:
logging.info("%s is alive and healthy", i)
else:
logging.error(req.text)
raise AirflowException("Invalid Response!")
class UcpHealthCheckPlugin(AirflowPlugin):
name = "ucp_healthcheck_plugin"
operators = [UcpHealthCheckOperator]