111 lines
4.1 KiB
Python
111 lines
4.1 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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"""Update node labels using Drydock
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"""
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import logging
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from airflow.exceptions import AirflowException
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from airflow.plugins_manager import AirflowPlugin
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try:
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from drydock_base_operator import DrydockBaseOperator
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from drydock_base_operator import gen_node_name_filter
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from drydock_errors import (
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DrydockTaskFailedException,
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DrydockTaskTimeoutException
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)
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except ImportError:
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from shipyard_airflow.plugins.drydock_base_operator import \
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DrydockBaseOperator
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from shipyard_airflow.plugins.drydock_base_operator import \
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gen_node_name_filter
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from shipyard_airflow.plugins.drydock_errors import (
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DrydockTaskFailedException,
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DrydockTaskTimeoutException
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)
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LOG = logging.getLogger(__name__)
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class DrydockRelabelNodesOperator(DrydockBaseOperator):
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"""Drydock Relabel Nodes Operator
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Update Kubernetes node labels on a targeted set of nodes
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using Drydock.
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"""
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def do_execute(self):
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self.successes = []
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LOG.info("Relabeling nodes [%s]", ", ".join(self.target_nodes))
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self.setup_configured_values()
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self.node_filter = gen_node_name_filter(self.target_nodes)
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self.execute_relabel()
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self.successes = self.get_successes_for_task(self.drydock_task_id)
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self.report_summary()
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if not self.is_task_successful():
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raise AirflowException(
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"One or more nodes requested for relabeling failed to relabel"
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)
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def setup_configured_values(self):
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"""Retrieve and localize the interval and timeout values for destroy
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"""
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self.q_interval = \
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self.dc['physical_provisioner.relabel_nodes_interval']
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self.task_timeout = \
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self.dc['physical_provisioner.relabel_nodes_timeout']
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def execute_relabel(self):
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# Trigger DryDock to execute task
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task_name = 'relabel_nodes'
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self.create_task(task_name)
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# Query Task
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try:
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self.query_task(self.q_interval, self.task_timeout)
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except DrydockTaskFailedException:
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LOG.exception("Task %s has failed. Some nodes may have been "
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"relabeled. The report at the end of processing "
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"this step contains the results", task_name)
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except DrydockTaskTimeoutException:
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LOG.warn("Task %s has timed out after %s seconds. Some nodes may "
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"have been relabeled. The report at the end of "
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"processing this step contains the results", task_name,
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self.task_timeout)
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def report_summary(self):
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"""Reports the successfully relabeled nodes"""
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failed = list(set(self.target_nodes) - set(self.successes))
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LOG.info("===== Relabel Nodes Summary =====")
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LOG.info(" Nodes requested: %s", ", ".join(sorted(self.target_nodes)))
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LOG.info(" Nodes relabeled: %s ", ", ".join(sorted(self.successes)))
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LOG.info(" Nodes not relabeled: %s", ", ".join(sorted(failed)))
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LOG.info("===== End Relabel Nodes Summary =====")
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# TODO: redundant with drydock_destroy_nodes...worth refactoring?
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def is_task_successful(self):
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"""Boolean if the task was completely succesful."""
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failed = set(self.target_nodes) - set(self.successes)
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return not failed
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class DrydockRelabelNodesOperatorPlugin(AirflowPlugin):
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"""Creates DrydockRelabelNodesOperator in Airflow."""
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name = 'drydock_relabel_nodes_operator'
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operators = [DrydockRelabelNodesOperator]
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