93 lines
3.3 KiB
Python
Executable File
93 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2015 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import argparse
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import time
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import jenkins
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def delete_offline_nodes(server, timeout):
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start = time.time()
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end = start + timeout
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while True:
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nodes = server.get_nodes()
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offline_nodes = [node for node in nodes if node['offline']]
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if not offline_nodes:
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# We have converged to no offline nodes state
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break
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elif time.time() > end:
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raise Exception("Offline slave deletion timeout exceeded.")
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try:
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for n in offline_nodes:
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server.delete_node(n['name'])
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# This may have raced an external system deleting nodes
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# after jobs complete. Just retry as we should
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# converage on no jobs running and no deletions.
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except jenkins.NotFoundException:
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pass
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except jenkins.JenkinsException as e:
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if '[500]' in str(e):
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pass
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else:
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raise
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time.sleep(1)
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def parse_args():
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parser = argparse.ArgumentParser(description='Safely stop Jenkins.')
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parser.add_argument('--url', default='http://localhost:8080',
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help='Base url for Jenkins master.')
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parser.add_argument('--user', required=True,
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help='Username to connect to Jenkins with.')
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parser.add_argument('--password', required=True,
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help='Password to auth with.')
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parser.add_argument('--no-delete', dest='delete', action='store_false',
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default=True, help="Don't delete offline slaves.")
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parser.add_argument('--delete-timeout', type=int, default=300,
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help="Seconds to spend deleting offline slaves.")
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args = parser.parse_args()
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return args
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def main():
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args = parse_args()
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server = jenkins.Jenkins(args.url,
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username=args.user,
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password=args.password)
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# Put in shutdown mode
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server.quiet_down()
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while True:
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try:
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if not server.get_running_builds():
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break
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# This may have raced an external system deleting executors
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# while listing the running jobs. Just retry as we should
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# converage on no jobs running and no deletions.
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except jenkins.NotFoundException:
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pass
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except jenkins.JenkinsException as e:
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if '[500]' in str(e):
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pass
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else:
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raise
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# Jobs are slow wait a minute between polls
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time.sleep(60)
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if args.delete:
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# Remove any offline nodes so they don't go online after restart.
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delete_offline_nodes(server, args.delete_timeout)
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if __name__ == '__main__':
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main()
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