I would like to send a remote command to multiple hosts using the Python Fabric library. The following code works as long as all hosts are available #!/usr/bin/python3 import fabric group = fabric.ThreadingGroup('boss1', 'boss2') results = group.run('uname -a', hide=True, timeout=5) for _connection, _result in results.items(): print(f'{_connection.host}: {_result.stdout.strip()}') If one of the hosts is unavailable I get a timeout error such as the following fabric.exceptions.GroupException: {<Connection host=boss1 user=ec2-user>: TimeoutError(60, 'Operation timed out'), <Connection host=boss2 user=ec2-user>: <Result cmd='uname -a' exited=0>} I would (1) like to reduce the timeout to 5 seconds (as is specified in group.run()) and (2) isolate the error to only the bad host and return information from the successful one(s). I have found documentation about connection_timeout, but only group.run() seems to accept a timeout keyword and it does not reduce from 60 seconds. I have also found documentation about a skip_bad_hosts keyword but cannot insert it into my code without a runtime error. What is the best way to skip over an error on one system and return results from the others? Python 3, Fabric 3 Continue reading...
