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#!/usr/bin/python
# 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
DOCUMENTATION = '''
---
module: command
author: "Petr Klima (@qaxi)"
short_description: Run commands on remote Cisco SMB devices
description:
- Sends arbitrary commands to an Cisco SMB 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.
options:
commands:
description:
- List of commands to send to the remote Cisco SMB 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
type: list
elements: str
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.
type: list
elements: str
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
type: str
choices: ['any', 'all']
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
type: int
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
type: int
'''
EXAMPLES = """
- name: Run command on remote devices
community.ciscosmb.command:
commands: show version
- name: Run command and check to see if output contains PID
community.ciscosmb.command:
commands: show inventory
wait_for: result[0] contains PID
- name: Run multiple commands on remote nodes
community.ciscosmb.command:
commands:
- show version
- show system
- name: Run multiple commands and evaluate the output
community.ciscosmb.command:
commands:
- show version
- show system
wait_for:
- result[0] contains Active-image
- result[1] contains "System Up Time"
"""
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_collections.ansible.netcommon.plugins.module_utils.network.common.parsing import Conditional
from ansible_collections.community.ciscosmb.plugins.module_utils.ciscosmb import run_commands
from ansible_collections.community.ciscosmb.plugins.module_utils.ciscosmb import ciscosmb_argument_spec
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.six import string_types
def to_lines(stdout):
for item in stdout:
if isinstance(item, string_types):
item = str(item).split('\n')
yield item
def main():
"""main entry point for module execution
"""
argument_spec = dict(
commands=dict(type='list', elements='str', required=True),
wait_for=dict(type='list', elements='str'),
match=dict(default='all', choices=['all', 'any']),
retries=dict(default=10, type='int'),
interval=dict(default=1, type='int')
)
argument_spec.update(ciscosmb_argument_spec)
module = AnsibleModule(argument_spec=argument_spec,
supports_check_mode=False)
result = {'changed': False}
wait_for = module.params['wait_for'] or list()
conditionals = [Conditional(c) for c in wait_for]
retries = module.params['retries']
interval = module.params['interval']
match = module.params['match']
while retries > 0:
responses = run_commands(module, module.params['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({
'changed': False,
'stdout': responses,
'stdout_lines': list(to_lines(responses))
})
module.exit_json(**result)
if __name__ == '__main__':
main()
|
