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This is a proof-of-concept for executing a command every 5 seconds on a device and displaying the result, while maintaining a persistent connection to the device. THIS IS 100% TOTAL HACK THAT SHOULD NOT BE USED IN PRODUCTION. It's hard-coded to print the result of But it illustrates that you can connect to a device (or devices) and run a command…
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| #!/usr/bin/env python | |
| """ | |
| persist.py - Execute stuff in a loop over a persistent connection w/ Trigger. | |
| """ | |
| import datetime | |
| from trigger.cmds import Commando | |
| from trigger import twister | |
| class PersistentChannel(twister.TriggerSSHAsyncPtyChannel): | |
| loop_delay = 5 # in seconds. | |
| really_done = False # Are we *really* all done? | |
| def loseConnection(self): | |
| """ | |
| Only terminate the connection if we're all done. | |
| This is a hack to trick Trigger into starting the whole command loop | |
| over again instead of disconnecting. | |
| """ | |
| # log.msg('=' * 50) | |
| print self.device | |
| print datetime.datetime.now() | |
| print self.results[0] # We only want the 'show arp' result. | |
| # log.msg('=' * 50) | |
| # Only disconnect if we're *really* done. This isn't implemented yet, | |
| # so you have to ctrl-C to kill the event loop. | |
| if self.really_done: | |
| super(PersistentChannel, self).loseConnection() | |
| else: | |
| self.results = [] # Zero out our stored results. | |
| self.commanditer = iter(self.factory.commands) # Reset commands | |
| reactor.callLater(self.loop_delay, self._send_next) # Start over | |
| def timeoutConnection(self): | |
| """We also don't want the connection to timeout.""" | |
| if self.really_done: | |
| super(PersistentChannel, self).timeoutConnection() | |
| # Monkey patch PersistentChannel in to replace TriggerSSHAsyncPtyChannel | |
| twister.TriggerSSHAsyncPtyChannel = PersistentChannel | |
| if __name__ == '__main__': | |
| devices = ['arista-sw1'] | |
| commands = ['show arp'] | |
| p = Commando(devices=devices, commands=commands) | |
| p.run() |
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| arista-sw1 | |
| 2015-09-23 14:59:48.728166 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 14:59:53.736746 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 14:59:58.747346 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:03.752687 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:08.758815 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:13.767237 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:18.772122 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:23.779500 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:28.789501 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:33.799315 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:38.807613 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:43.814169 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:48.824859 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:53.833535 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:00:58.843982 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:03.852134 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:08.863119 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:13.870926 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:18.879225 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:23.886698 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:28.895824 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:33.903060 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:38.911929 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:43.917121 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:48.923803 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:53.933978 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:01:58.945470 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:03.955552 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:08.964562 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:13.971728 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:18.980240 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:23.989627 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:28.997306 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:34.005602 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:39.013308 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:44.018279 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:49.029150 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:54.037078 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:02:59.043180 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:04.051839 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:09.060180 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:14.066895 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:19.073406 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:24.080962 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:29.087254 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:34.096188 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:39.106332 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:44.116092 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:49.122800 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:54.131325 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:03:59.138565 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:04.147199 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:09.155566 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:14.166516 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:19.174167 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:24.182583 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:29.191259 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:34.195342 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:39.202953 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:44.210828 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:49.217160 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:54.225976 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:04:59.231103 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:04.236676 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:09.247285 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:14.254271 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:19.262134 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:24.269259 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:29.275249 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:34.283484 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:39.290499 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:44.299236 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:49.307055 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:54.315838 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:05:59.322942 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:04.329588 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:09.338234 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:14.344901 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:19.353726 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:24.360432 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:29.368010 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:34.376163 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:39.382511 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:44.392562 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:49.397453 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:54.407498 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:06:59.415376 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:07:04.423623 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:07:09.429823 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:07:14.437719 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 | |
| arista-sw1 | |
| 2015-09-23 15:07:19.448605 | |
| Address Age (min) Hardware Addr Interface | |
| 192.168.56.1 0 0a00.2700.0000 Management1 |
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