67 lines
2.1 KiB
Python
67 lines
2.1 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 time
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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 promenade_base_operator import PromenadeBaseOperator
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except ImportError:
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from shipyard_airflow.plugins.promenade_base_operator import \
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PromenadeBaseOperator
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LOG = logging.getLogger(__name__)
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class PromenadeDrainNodeOperator(PromenadeBaseOperator):
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"""Promenade Drain Node Operator
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This operator will trigger promenade to drain the target
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node and ensure that the node is no longer the target of
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any pod scheduling. Promenade will evicts or deletes any
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running pod on the node.
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"""
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def do_execute(self):
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# Placeholder function. Updates will be made when the Promenade
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# API is ready for consumption.
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# TODO(bryan-strassner) use:
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# self.dc['kubernetes_provisioner.drain_timeout']
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# self.dc['kubernetes_provisioner.drain_grace_period']
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LOG.info("Draining node...")
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time.sleep(5)
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node_drained = True
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if node_drained:
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LOG.info("Node %s has been successfully drained",
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self.redeploy_server)
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else:
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raise AirflowException('Failed to drain %s!',
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self.redeploy_server)
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class PromenadeDrainNodeOperatorPlugin(AirflowPlugin):
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"""Creates PromenadeDrainNodeOperator in Airflow."""
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name = 'promenade_drain_node_operator'
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operators = [PromenadeDrainNodeOperator]
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