shipyard/src/bin/shipyard_airflow/shipyard_airflow/plugins/promenade_shutdown_kubelet.py

60 lines
1.9 KiB
Python

# Copyright 2018 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 time
from airflow.plugins_manager import AirflowPlugin
from airflow.exceptions import AirflowException
try:
from promenade_base_operator import PromenadeBaseOperator
except ImportError:
from shipyard_airflow.plugins.promenade_base_operator import \
PromenadeBaseOperator
LOG = logging.getLogger(__name__)
class PromenadeShutdownKubeletOperator(PromenadeBaseOperator):
"""Promenade Shutdown Kubelet Operator
This operator will trigger promenade to shut down kubelet
on the target node.
"""
def do_execute(self):
# Placeholder function. Updates will be made when the Promenade
# API is ready for consumption.
LOG.info("Shutting down kubelet on node...")
time.sleep(5)
shutdown_kubelet = True
if shutdown_kubelet:
LOG.info("Successfully shut down kubelet on %s",
self.redeploy_server)
else:
raise AirflowException('Failed to shut down kubelet on %s!',
self.redeploy_server)
class PromenadeShutdownKubeletOperatorPlugin(AirflowPlugin):
"""Creates PromenadeShutdownKubeletOperator in Airflow."""
name = 'promenade_shutdown_kubelet_operator'
operators = [PromenadeShutdownKubeletOperator]