#!/usr/bin/python # # (c) 2015 Peter Sprygada, # # Copyright (c) 2016 Dell Inc. # # This file is part of Ansible # # Ansible is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # Ansible is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with Ansible. If not, see . # ANSIBLE_METADATA = {'status': ['preview'], 'supported_by': 'community', 'version': '1.0'} DOCUMENTATION = """ --- module: dellos6_command version_added: "2.2" short_description: Run commands on remote devices running Dell OS6 description: - Sends arbitrary commands to a Dell OS6 node and returns the results read from the device. The M(dellos6_command) module includes an argument that will cause the module to wait for a specific condition before returning or timing out if the condition is not met. - This module does not support running commands in configuration mode. Please use M(dellos6_config) to configure Dell OS6 devices. extends_documentation_fragment: dellos6 options: commands: description: - List of commands to send to the remote dellos6 device over the configured provider. The resulting output from the command is returned. If the I(wait_for) argument is provided, the module is not returned until the condition is satisfied or the number of I(retries) as expired. required: true wait_for: description: - List of conditions to evaluate against the output of the command. The task will wait for each condition to be true before moving forward. If the conditional is not true within the configured number of I(retries), the task fails. See examples. required: false default: null retries: description: - Specifies the number of retries a command should be tried before it is considered failed. The command is run on the target device every retry and evaluated against the I(wait_for) conditions. required: false default: 10 interval: description: - Configures the interval in seconds to wait between retries of the command. If the command does not pass the specified conditions, the interval indicates how long to wait before trying the command again. required: false default: 1 """ EXAMPLES = """ # Note: examples below use the following provider dict to handle # transport and authentication to the node. vars: cli: host: "{{ inventory_hostname }}" username: admin password: admin transport: cli tasks: - name: run show version on remote devices dellos6_command: commands: show version provider "{{ cli }}" - name: run show version and check to see if output contains Dell dellos6_command: commands: show version wait_for: result[0] contains Dell provider "{{ cli }}" - name: run multiple commands on remote nodes dellos6_command: commands: - show version - show interfaces provider "{{ cli }}" - name: run multiple commands and evaluate the output dellos6_command: commands: - show version - show interfaces wait_for: - result[0] contains Dell - result[1] contains Access provider "{{ cli }}" """ RETURN = """ stdout: description: The set of responses from the commands returned: always type: list sample: ['...', '...'] stdout_lines: description: The value of stdout split into a list returned: always type: list sample: [['...', '...'], ['...'], ['...']] failed_conditions: description: The list of conditionals that have failed returned: failed type: list sample: ['...', '...'] warnings: description: The list of warnings (if any) generated by module based on arguments returned: always type: list sample: ['...', '...'] """ from ansible.module_utils.basic import get_exception from ansible.module_utils.netcli import CommandRunner, FailedConditionsError from ansible.module_utils.network import NetworkModule, NetworkError import ansible.module_utils.dellos6 def to_lines(stdout): for item in stdout: if isinstance(item, basestring): item = str(item).split('\n') yield item def main(): spec = dict( commands=dict(type='list', required=True), wait_for=dict(type='list'), retries=dict(default=10, type='int'), interval=dict(default=1, type='int') ) module = NetworkModule(argument_spec=spec, connect_on_load=False, supports_check_mode=True) commands = module.params['commands'] conditionals = module.params['wait_for'] or list() warnings = list() runner = CommandRunner(module) for cmd in commands: if module.check_mode and not cmd.startswith('show'): warnings.append('only show commands are supported when using ' 'check mode, not executing `%s`' % cmd) else: if cmd.startswith('conf'): module.fail_json(msg='dellos6_command does not support running ' 'config mode commands. Please use ' 'dellos6_config instead') runner.add_command(cmd) for item in conditionals: runner.add_conditional(item) runner.retries = module.params['retries'] runner.interval = module.params['interval'] try: runner.run() except FailedConditionsError: exc = get_exception() module.fail_json(msg=str(exc), failed_conditions=exc.failed_conditions) except NetworkError: exc = get_exception() module.fail_json(msg=str(exc)) result = dict(changed=False) result['stdout'] = list() for cmd in commands: try: output = runner.get_command(cmd) except ValueError: output = 'command not executed due to check_mode, see warnings' result['stdout'].append(output) result['warnings'] = warnings result['stdout_lines'] = list(to_lines(result['stdout'])) module.exit_json(**result) if __name__ == '__main__': main()