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#!/usr/bin/python
#
# Copyright: Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'network'}
DOCUMENTATION = """
---
module: iosxr_command
version_added: "2.1"
author: "Ricardo Carrillo Cruz (@rcarrillocruz)"
short_description: Run commands on remote devices running Cisco IOS XR
description:
- Sends arbitrary commands to an IOS XR node and returns the results
read from the device. This 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(iosxr_config) to configure iosxr devices.
extends_documentation_fragment: iosxr
notes:
- Make sure the user has been authorized to execute commands terminal length 0, terminal width 512 and terminal exec prompt no-timestamp.
- This module works with C(network_cli). See L(the IOS-XR Platform Options,../network/user_guide/platform_iosxr.html).
- This module does not support C(netconf) connection.
- Tested against IOS XR 6.1.3
options:
commands:
description:
- List of commands to send to the remote iosxr 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 retries has 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 retries, the task fails.
See examples.
aliases: ['waitfor']
version_added: "2.2"
match:
description:
- The I(match) argument is used in conjunction with the
I(wait_for) argument to specify the match policy. Valid
values are C(all) or C(any). If the value is set to C(all)
then all conditionals in the wait_for must be satisfied. If
the value is set to C(any) then only one of the values must be
satisfied.
default: all
choices: ['any', 'all']
version_added: "2.2"
retries:
description:
- Specifies the number of retries a command should by tried
before it is considered failed. The command is run on the
target device every retry and evaluated against the
I(wait_for) conditions.
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.
default: 1
"""
EXAMPLES = """
tasks:
- name: run show version on remote devices
iosxr_command:
commands: show version
- name: run show version and check to see if output contains iosxr
iosxr_command:
commands: show version
wait_for: result[0] contains IOS-XR
- name: run multiple commands on remote nodes
iosxr_command:
commands:
- show version
- show interfaces
- { command: example command that prompts, prompt: expected prompt, answer: yes}
- name: run multiple commands and evaluate the output
iosxr_command:
commands:
- show version
- show interfaces
wait_for:
- result[0] contains IOS-XR
- result[1] contains Loopback0
"""
RETURN = """
stdout:
description: The set of responses from the commands
returned: always apart from low level errors (such as action plugin)
type: list
sample: ['...', '...']
stdout_lines:
description: The value of stdout split into a list
returned: always apart from low level errors (such as action plugin)
type: list
sample: [['...', '...'], ['...'], ['...']]
failed_conditions:
description: The list of conditionals that have failed
returned: failed
type: list
sample: ['...', '...']
"""
import time
from ansible.module_utils._text import to_text
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.network.common.parsing import Conditional
from ansible.module_utils.network.common.utils import to_lines
from ansible.module_utils.network.iosxr.iosxr import run_commands, iosxr_argument_spec
from ansible.module_utils.network.iosxr.iosxr import command_spec
def parse_commands(module, warnings):
commands = module.params['commands']
for item in list(commands):
try:
command = item['command']
except Exception:
command = item
if module.check_mode and not command.startswith('show'):
warnings.append(
'Only show commands are supported when using check mode, not '
'executing %s' % command
)
commands.remove(item)
return commands
def main():
argument_spec = dict(
commands=dict(type='list', required=True),
wait_for=dict(type='list', aliases=['waitfor']),
match=dict(default='all', choices=['all', 'any']),
retries=dict(default=10, type='int'),
interval=dict(default=1, type='int')
)
argument_spec.update(iosxr_argument_spec)
argument_spec.update(command_spec)
module = AnsibleModule(argument_spec=argument_spec,
supports_check_mode=True)
warnings = list()
result = {'changed': False, 'warnings': warnings}
commands = parse_commands(module, warnings)
wait_for = module.params['wait_for'] or list()
try:
conditionals = [Conditional(c) for c in wait_for]
except AttributeError as exc:
module.fail_json(msg=to_text(exc))
retries = module.params['retries']
interval = module.params['interval']
match = module.params['match']
while retries > 0:
responses = run_commands(module, commands)
for item in list(conditionals):
if item(responses):
if match == 'any':
conditionals = list()
break
conditionals.remove(item)
if not conditionals:
break
time.sleep(interval)
retries -= 1
if conditionals:
failed_conditions = [item.raw for item in conditionals]
msg = 'One or more conditional statements have not been satisfied'
module.fail_json(msg=msg, failed_conditions=failed_conditions)
result.update({
'stdout': responses,
'stdout_lines': list(to_lines(responses)),
})
module.exit_json(**result)
if __name__ == '__main__':
main()
|
