88 lines
3.0 KiB
Python
88 lines
3.0 KiB
Python
#!/usr/bin/env python
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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 extras
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import signal
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import sys
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import daemon
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from nodepool import builder
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import nodepool.cmd
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# as of python-daemon 1.6 it doesn't bundle pidlockfile anymore
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# instead it depends on lockfile-0.9.1 which uses pidfile.
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pid_file_module = extras.try_imports(['daemon.pidlockfile', 'daemon.pidfile'])
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class NodePoolBuilderApp(nodepool.cmd.NodepoolApp):
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def sigint_handler(self, signal, frame):
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self.nb.stop()
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sys.exit(0)
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def parse_arguments(self):
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parser = argparse.ArgumentParser(description='NodePool Image Builder.')
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parser.add_argument('-c', dest='config',
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default='/etc/nodepool/nodepool.yaml',
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help='path to config file')
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parser.add_argument('-l', dest='logconfig',
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help='path to log config file')
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parser.add_argument('-p', dest='pidfile',
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help='path to pid file',
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default='/var/run/nodepool-builder/'
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'nodepool-builder.pid')
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parser.add_argument('-d', dest='nodaemon', action='store_true',
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help='do not run as a daemon')
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parser.add_argument('--build-workers', dest='build_workers',
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default=1, help='number of build workers',
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type=int)
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parser.add_argument('--upload-workers', dest='upload_workers',
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default=4, help='number of upload workers',
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type=int)
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parser.add_argument('--fake', action='store_true',
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help='Do not actually run diskimage-builder '
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'(used for testing)')
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self.args = parser.parse_args()
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def main(self):
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self.setup_logging()
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self.nb = builder.NodePoolBuilder(
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self.args.config, self.args.build_workers,
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self.args.upload_workers, self.args.fake)
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signal.signal(signal.SIGINT, self.sigint_handler)
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signal.signal(signal.SIGUSR2, nodepool.cmd.stack_dump_handler)
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self.nb.start()
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while True:
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signal.pause()
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def main():
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app = NodePoolBuilderApp()
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app.parse_arguments()
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if app.args.nodaemon:
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app.main()
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else:
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pid = pid_file_module.TimeoutPIDLockFile(app.args.pidfile, 10)
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with daemon.DaemonContext(pidfile=pid):
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app.main()
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if __name__ == "__main__":
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sys.exit(main())
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