4164518502
This patch tries to cover some edge cases could happen during Shipyard Airflow operator execution. All operators at the moment make interactions with other services i.e. k8s pods. In a case of exceptions during execution of the operator, logs will be fetched from the appropriate pod and if the operator has "fetch_failure_details" method (see DrydockBaseOperator) it will be called as well. What exception could happen during an operator execution? Besides explicitly defined in code like DrydockClientUseFailureException, other exception e.g. KeyError or similar may be raised. It's not clear who is a culprit in that client side (Shipyard) or server side (Drydock, Armada, Deckhand, Promenade). So this patch applies defensive mode and gets logs from pods and gets additional details for any exceptional situations. For doing that do_execute method is wrapped with try..except in UcpBaseOperator.execute. While fetching logs from a pod and fetching failure details it makes appropriate logging by itself and finally reraises the original exception. Change-Id: If1501e9a24b05edb6eb32c7b1b2d27f24f3ee063
76 lines
2.6 KiB
Python
76 lines
2.6 KiB
Python
# Copyright 2018 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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import yaml
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from airflow.plugins_manager import AirflowPlugin
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from airflow.exceptions import AirflowException
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try:
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from deckhand_base_operator import DeckhandBaseOperator
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except ImportError:
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from shipyard_airflow.plugins.deckhand_base_operator import \
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DeckhandBaseOperator
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LOG = logging.getLogger(__name__)
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class DeckhandValidateSiteDesignOperator(DeckhandBaseOperator):
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"""Deckhand Validate Site Design Operator
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This operator will trigger deckhand to validate the
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site design YAMLs
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"""
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def do_execute(self):
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# Retrieve Keystone Token and assign to X-Auth-Token Header
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x_auth_token = {"X-Auth-Token": self.svc_token}
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# Form Validation Endpoint
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validation_endpoint = os.path.join(self.deckhand_svc_endpoint,
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'revisions',
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str(self.revision_id),
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'validations')
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# Retrieve Validation list
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LOG.info("Retrieving validation list...")
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try:
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retrieved_list = yaml.safe_load(
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requests.get(validation_endpoint,
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headers=x_auth_token,
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timeout=self.validation_read_timeout).text)
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except requests.exceptions.RequestException as e:
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raise AirflowException(e)
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if (any([str(v.get('status', 'unspecified')).lower() == 'failure'
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for v in retrieved_list.get('results', [])])):
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raise AirflowException("DeckHand Site Design Validation Failed!")
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else:
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LOG.info("Revision %d has been successfully validated",
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self.revision_id)
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class DeckhandValidateSiteDesignOperatorPlugin(AirflowPlugin):
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"""Creates DeckhandValidateSiteDesignOperator in Airflow."""
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name = 'deckhand_validate_site_design_operator'
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operators = [DeckhandValidateSiteDesignOperator]
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