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adds feature to try to auto determine network_os (#18674)

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This updates the network_cli connection plugin to attempt to automatically
determine the remote device os.  The device network os discovery can
be overridden by setting the ansible_network_os value.
This commit is contained in:
Peter Sprygada 2016-11-30 16:28:47 -05:00 • committed by GitHub
parent 6fe9a5e40c
commit 8137c7207d
8 changed files with 56 additions and 7 deletions
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26
lib/ansible/plugins/connection/network_cli.py
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@ -39,14 +39,8 @@ class Connection(_Connection):
def __init__(self, play_context, new_stdin, *args, **kwargs):
super(Connection, self).__init__(play_context, new_stdin, *args, **kwargs)
assert self._play_context.network_os, 'ansible_network_os must be set'
self._terminal = terminal_loader.get(self._play_context.network_os, self)
if not self._terminal:
raise AnsibleConnectionFailure('network os %s is not supported' % self._play_context.network_os)
self._terminal = None
self._shell = None
self._matched_prompt = None
self._matched_pattern = None
self._last_response = None
@ -64,6 +58,24 @@ class Connection(_Connection):
def _connect(self):
super(Connection, self)._connect()
network_os = self._play_context.network_os
if not network_os:
for cls in terminal_loader.all(class_only=True):
network_os = cls.guess_network_os(self.ssh)
if network_os:
break
if not network_os:
raise AnsibleConnectionFailure(
'unable to determine device network os. Please configure '
'ansible_network_os value'
)
self._terminal = terminal_loader.get(network_os, self)
if not self._terminal:
raise AnsibleConnectionFailure('network os %s is not supported' % network_os)
return (0, 'connected', '')
def open_shell(self, timeout=10):