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initial add of network/sros modules
* adds support for sros_command module for sending arbitrary commands * adds support for sros_config module for working with sros configurations
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Peter Sprygada
Matt Clay
parent
32e3cc7778
commit
5ebe26e782
3 changed files with 620 additions and 0 deletions
234
lib/ansible/modules/network/sros/sros_command.py
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lib/ansible/modules/network/sros/sros_command.py
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#!/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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DOCUMENTATION = """
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---
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module: sros_command
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version_added: "2.2"
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author: "Peter Sprygada (@privateip)"
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short_description: Run commands on remote devices running Nokia SROS
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description:
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- Sends arbitrary commands to an SROS node and returns the results
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read from the device. This module includes an argument that will
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cause the module to wait for a specific condition before returning
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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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Please use M(sros_config) to configure SROS devices.
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extends_documentation_fragment: sros
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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 SROS device over the
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configured provider. The resulting output from the command
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is returned. If the I(wait_for) argument is provided, the
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module is not returned until the condition is satisfied or
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the number of retries has expired.
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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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required: false
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default: null
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aliases: ['waitfor']
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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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required: false
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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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required: false
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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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required: false
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default: 1
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"""
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EXAMPLES = """
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# Note: examples below use the following provider dict to handle
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# transport and authentication to the node.
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vars:
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cli:
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host: "{{ inventory_hostname }}"
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username: admin
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password: admin
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transport: cli
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tasks:
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- name: run show version on remote devices
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sros_command:
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commands: show version
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provider "{{ cli }}"
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- name: run show version and check to see if output contains sros
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sros_command:
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commands: show version
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wait_for: result[0] contains sros
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provider "{{ cli }}"
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- name: run multiple commands on remote nodes
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sros_command:
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commands:
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- show version
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- show port detail
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provider "{{ cli }}"
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- name: run multiple commands and evaluate the output
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sros_command:
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commands:
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- show version
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- show port detail
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wait_for:
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- result[0] contains TiMOS-B-14.0.R4
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provider: "{{ cli }}"
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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
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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
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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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from ansible.module_utils.basic import get_exception
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from ansible.module_utils.netcli import CommandRunner
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from ansible.module_utils.netcli import AddCommandError, FailedConditionsError
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from ansible.module_utils.sros import NetworkModule, NetworkError
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VALID_KEYS = ['command', 'output', 'prompt', 'response']
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def to_lines(stdout):
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for item in stdout:
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if isinstance(item, basestring):
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item = str(item).split('\n')
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yield item
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def parse_commands(module):
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for cmd in module.params['commands']:
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if isinstance(cmd, basestring):
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cmd = dict(command=cmd, output=None)
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elif 'command' not in cmd:
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module.fail_json(msg='command keyword argument is required')
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elif cmd.get('output') not in [None, 'text']:
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module.fail_json(msg='invalid output specified for command')
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elif not set(cmd.keys()).issubset(VALID_KEYS):
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module.fail_json(msg='unknown keyword specified')
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yield cmd
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def main():
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spec = dict(
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# { command: <str>, output: <str>, prompt: <str>, response: <str> }
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commands=dict(type='list', required=True),
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wait_for=dict(type='list', aliases=['waitfor']),
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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 = NetworkModule(argument_spec=spec,
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connect_on_load=False,
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supports_check_mode=True)
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commands = list(parse_commands(module))
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conditionals = module.params['wait_for'] or list()
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warnings = list()
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runner = CommandRunner(module)
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for cmd in commands:
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if module.check_mode and not cmd['command'].startswith('show'):
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warnings.append('only show commands are supported when using '
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'check mode, not executing `%s`' % cmd['command'])
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else:
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if cmd['command'].startswith('conf'):
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module.fail_json(msg='sros_command does not support running '
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'config mode commands. Please use '
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'sros_config instead')
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try:
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runner.add_command(**cmd)
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except AddCommandError:
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exc = get_exception()
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warnings.append('duplicate command detected: %s' % cmd)
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for item in conditionals:
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runner.add_conditional(item)
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runner.retries = module.params['retries']
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runner.interval = module.params['interval']
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runner.match = module.params['match']
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try:
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runner.run()
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except FailedConditionsError:
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exc = get_exception()
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module.fail_json(msg=str(exc), failed_conditions=exc.failed_conditions)
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except NetworkError:
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exc = get_exception()
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module.fail_json(msg=str(exc))
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result = dict(changed=False, stdout=list())
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for cmd in commands:
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try:
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output = runner.get_command(cmd['command'])
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except ValueError:
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output = 'command not executed due to check_mode, see warnings'
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result['stdout'].append(output)
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result['warnings'] = warnings
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result['stdout_lines'] = list(to_lines(result['stdout']))
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module.exit_json(**result)
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if __name__ == '__main__':
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main()
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