mirror of
https://github.com/thegeeklab/ansible-later.git
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242 lines
7.7 KiB
Python
242 lines
7.7 KiB
Python
#!/usr/bin/python
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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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#
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = """
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---
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module: voss_command
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version_added: "2.7"
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author: "Lindsay Hill (@LindsayHill)"
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short_description: Run commands on remote devices running Extreme VOSS
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description:
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- Sends arbitrary commands to an Extreme VSP device running VOSS, and
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returns the results read from the device. This module includes an
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argument that will cause the module to wait for a specific condition
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before returning or timing out if the condition is not met.
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- This module does not support running commands in configuration mode.
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notes:
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- Tested against VOSS 7.0.0
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options:
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commands:
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description:
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- List of commands to send to the remote VOSS device. The
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resulting output from the command is returned. If the
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I(wait_for) argument is provided, the module is not returned
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until the condition is satisfied or the number of retries has
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expired. If a command sent to the device requires answering a
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prompt, it is possible to pass a dict containing I(command),
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I(answer) and I(prompt). Common answers are 'y' or "\\r"
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(carriage return, must be double quotes). See examples.
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required: true
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wait_for:
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description:
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- List of conditions to evaluate against the output of the
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command. The task will wait for each condition to be true
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before moving forward. If the conditional is not true
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within the configured number of retries, the task fails.
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See examples.
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match:
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description:
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- The I(match) argument is used in conjunction with the
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I(wait_for) argument to specify the match policy. Valid
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values are C(all) or C(any). If the value is set to C(all)
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then all conditionals in the wait_for must be satisfied. If
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the value is set to C(any) then only one of the values must be
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satisfied.
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default: all
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choices: ['any', 'all']
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retries:
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description:
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- Specifies the number of retries a command should by tried
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before it is considered failed. The command is run on the
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target device every retry and evaluated against the
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I(wait_for) conditions.
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default: 10
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interval:
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description:
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- Configures the interval in seconds to wait between retries
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of the command. If the command does not pass the specified
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conditions, the interval indicates how long to wait before
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trying the command again.
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default: 1
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"""
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EXAMPLES = r"""
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tasks:
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- name: run show sys software on remote devices
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voss_command:
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commands: show sys software
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- name: run show sys software and check to see if output contains VOSS
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voss_command:
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commands: show sys software
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wait_for: result[0] contains VOSS
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- name: run multiple commands on remote nodes
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voss_command:
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commands:
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- show sys software
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- show interfaces vlan
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- name: run multiple commands and evaluate the output
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voss_command:
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commands:
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- show sys software
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- show interfaces vlan
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wait_for:
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- result[0] contains Version
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- result[1] contains Basic
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- name: run command that requires answering a prompt
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voss_command:
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commands:
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- command: 'reset'
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prompt: 'Are you sure you want to reset the switch? (y/n)'
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answer: 'y'
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"""
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RETURN = """
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stdout:
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description: The set of responses from the commands
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returned: always apart from low level errors (such as action plugin)
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type: list
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sample: ['...', '...']
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stdout_lines:
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description: The value of stdout split into a list
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returned: always apart from low level errors (such as action plugin)
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type: list
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sample: [['...', '...'], ['...'], ['...']]
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failed_conditions:
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description: The list of conditionals that have failed
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returned: failed
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type: list
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sample: ['...', '...']
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"""
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import re
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import time
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from ansible.module_utils.network.voss.voss import run_commands
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from ansible.module_utils.network.voss.voss import check_args
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.network.common.utils import ComplexList
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from ansible.module_utils.network.common.parsing import Conditional
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from ansible.module_utils.six import string_types
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def to_lines(stdout):
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for item in stdout:
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if isinstance(item, string_types):
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item = str(item).split('\n')
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yield item
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def parse_commands(module, warnings):
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command = ComplexList(dict(
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command=dict(key=True),
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prompt=dict(),
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answer=dict()
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), module)
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commands = command(module.params['commands'])
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for item in list(commands):
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configure_type = re.match(r'conf(?:\w*)(?:\s+(\w+))?', item['command'])
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if module.check_mode:
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if configure_type and configure_type.group(1) not in ('confirm', 'replace', 'revert', 'network'):
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module.fail_json(
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msg='voss_command does not support running config mode '
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'commands. Please use voss_config instead'
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)
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if not item['command'].startswith('show'):
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warnings.append(
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'only show commands are supported when using check mode, not '
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'executing `%s`' % item['command']
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)
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commands.remove(item)
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return commands
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def main():
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"""main entry point for module execution
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"""
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argument_spec = dict(
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commands=dict(type='list', required=True),
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wait_for=dict(type='list'),
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match=dict(default='all', choices=['all', 'any']),
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retries=dict(default=10, type='int'),
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interval=dict(default=1, type='int')
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)
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module = AnsibleModule(argument_spec=argument_spec,
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supports_check_mode=True)
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result = {'changed': False}
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warnings = list()
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check_args(module, warnings)
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commands = parse_commands(module, warnings)
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result['warnings'] = warnings
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wait_for = module.params['wait_for'] or list()
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conditionals = [Conditional(c) for c in wait_for]
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retries = module.params['retries']
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interval = module.params['interval']
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match = module.params['match']
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while retries > 0:
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responses = run_commands(module, commands)
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for item in list(conditionals):
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if item(responses):
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if match == 'any':
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conditionals = list()
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break
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conditionals.remove(item)
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if not conditionals:
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break
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time.sleep(interval)
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retries -= 1
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if conditionals:
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failed_conditions = [item.raw for item in conditionals]
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msg = 'One or more conditional statements have not been satisfied'
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module.fail_json(msg=msg, failed_conditions=failed_conditions)
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result.update({
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'changed': False,
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'stdout': responses,
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'stdout_lines': list(to_lines(responses))
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})
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module.exit_json(**result)
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if __name__ == '__main__':
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main()
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