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https://github.com/ansible-collections/community.general.git
synced 2025-05-02 23:31:25 -07:00
e5c2c03dea
Implements a new method in the ssh connection plugin (fetch_and_store_key) which is used to prefetch the key using ssh-keyscan.
50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
# (c) 2015, Ansible, Inc. <support@ansible.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import subprocess
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import sys
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__all__ = ['get_smart_connection_type']
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def get_smart_connection_type(play_context):
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'''
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Uses the ssh command with the ControlPersist option while checking
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for an error to determine if we should use ssh or paramiko. Also
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may take other factors into account.
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'''
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conn_type = 'ssh'
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if sys.platform.startswith('darwin') and play_context.password:
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# due to a current bug in sshpass on OSX, which can trigger
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# a kernel panic even for non-privileged users, we revert to
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# paramiko on that OS when a SSH password is specified
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conn_type = "paramiko"
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else:
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# see if SSH can support ControlPersist if not use paramiko
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try:
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cmd = subprocess.Popen(['ssh','-o','ControlPersist'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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(out, err) = cmd.communicate()
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if "Bad configuration option" in err or "Usage:" in err:
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conn_type = "paramiko"
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except OSError:
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conn_type = "paramiko"
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return conn_type
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