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Refactor iosxr_command to make use of network_connection plugin (#20772)

This commit is contained in:
Ricardo Carrillo Cruz 2017-01-30 17:52:19 +01:00 committed by GitHub
parent bbaab6ee5b
commit e70bc06ea1
3 changed files with 300 additions and 76 deletions

View file

@ -24,7 +24,7 @@ DOCUMENTATION = """
---
module: iosxr_command
version_added: "2.1"
author: "Peter Sprygada (@privateip)"
author: "Ricardo Carrillo Cruz (@rcarrillocruz)"
short_description: Run commands on remote devices running Cisco iosxr
description:
- Sends arbitrary commands to an iosxr node and returns the results
@ -33,7 +33,6 @@ description:
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
options:
commands:
description:
@ -85,32 +84,21 @@ options:
"""
EXAMPLES = """
# Note: examples below use the following provider dict to handle
# transport and authentication to the node.
vars:
cli:
host: "{{ inventory_hostname }}"
username: root
password: root
tasks:
- name: run show version on remote devices
iosxr_command:
commands: show version
provider: "{{ cli }}"
- name: run show version and check to see if output contains iosxr
iosxr_command:
commands: show version
wait_for: result[0] contains IOS-XR
provider: "{{ cli }}"
- name: run multiple commands on remote nodes
iosxr_command:
commands:
- show version
- show interfaces
provider: "{{ cli }}"
- name: run multiple commands and evaluate the output
iosxr_command:
@ -120,7 +108,6 @@ tasks:
wait_for:
- result[0] contains IOS-XR
- result[1] contains Loopback0
provider: "{{ cli }}"
"""
RETURN = """
@ -129,24 +116,38 @@ stdout:
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: ['...', '...']
start:
description: The time the job started
returned: always
type: str
sample: "2016-11-16 10:38:15.126146"
end:
description: The time the job ended
returned: always
type: str
sample: "2016-11-16 10:38:25.595612"
delta:
description: The time elapsed to perform all operations
returned: always
type: str
sample: "0:00:10.469466"
"""
import ansible.module_utils.iosxr
from ansible.module_utils.basic import get_exception
from ansible.module_utils.netcli import CommandRunner
from ansible.module_utils.netcli import AddCommandError, FailedConditionsError
from ansible.module_utils.network import NetworkModule, NetworkError
import time
from ansible.module_utils.local import LocalAnsibleModule
from ansible.module_utils.iosxr import run_commands
from ansible.module_utils.network_common import ComplexList
from ansible.module_utils.netcli import Conditional
from ansible.module_utils.six import string_types
VALID_KEYS = ['command', 'output', 'prompt', 'response']
@ -157,18 +158,27 @@ def to_lines(stdout):
item = str(item).split('\n')
yield item
def parse_commands(module):
for cmd in module.params['commands']:
if isinstance(cmd, string_types):
cmd = dict(command=cmd, output=None)
elif 'command' not in cmd:
module.fail_json(msg='command keyword argument is required')
elif cmd.get('output') not in [None, 'text']:
module.fail_json(msg='invalid output specified for command')
elif not set(cmd.keys()).issubset(VALID_KEYS):
module.fail_json(msg='unknown command keyword specified. Valid '
'values are %s' % ', '.join(VALID_KEYS))
yield cmd
def parse_commands(module, warnings):
command = ComplexList(dict(
command=dict(key=True),
prompt=dict(),
response=dict()
))
commands = command(module.params['commands'])
for index, item in enumerate(commands):
if module.check_mode and not item['command'].startswith('show'):
warnings.append(
'only show commands are supported when using check mode, not '
'executing `%s`' % item['command']
)
elif item['command'].startswith('conf'):
module.fail_json(
msg='iosxr_command does not support running config mode '
'commands. Please use iosxr_config instead'
)
commands[index] = module.jsonify(item)
return commands
def main():
spec = dict(
@ -182,62 +192,49 @@ def main():
interval=dict(default=1, type='int')
)
module = NetworkModule(argument_spec=spec,
connect_on_load=False,
module = LocalAnsibleModule(argument_spec=spec,
supports_check_mode=True)
commands = list(parse_commands(module))
conditionals = module.params['wait_for'] or list()
warnings = list()
commands = parse_commands(module, warnings)
runner = CommandRunner(module)
wait_for = module.params['wait_for'] or list()
conditionals = [Conditional(c) for c in wait_for]
for cmd in commands:
if module.check_mode and not cmd['command'].startswith('show'):
warnings.append('only show commands are supported when using '
'check mode, not executing `%s`' % cmd['command'])
else:
if cmd['command'].startswith('conf'):
module.fail_json(msg='iosxr_command does not support running '
'config mode commands. Please use '
'iosxr_config instead')
try:
runner.add_command(**cmd)
except AddCommandError:
exc = get_exception()
warnings.append('duplicate command detected: %s' % cmd)
retries = module.params['retries']
interval = module.params['interval']
match = module.params['match']
for item in conditionals:
runner.add_conditional(item)
while retries > 0:
responses = run_commands(module, commands)
runner.retries = module.params['retries']
runner.interval = module.params['interval']
runner.match = module.params['match']
for item in list(conditionals):
if item(responses):
if match == 'any':
conditionals = list()
break
conditionals.remove(item)
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))
if not conditionals:
break
result = dict(changed=False, stdout=list())
time.sleep(interval)
retries -= 1
for cmd in commands:
try:
output = runner.get_command(cmd['command'])
except ValueError:
output = 'command not executed due to check_mode, see warnings'
result['stdout'].append(output)
if conditionals:
failed_conditions = [item.raw for item in conditionals]
msg = 'One or more conditional statements have not be satisfied'
module.fail_json(msg=msg, failed_conditions=failed_conditions)
result['warnings'] = warnings
result['stdout_lines'] = list(to_lines(result['stdout']))
result = {
'changed': False,
'stdout': responses,
'warnings': warnings,
'stdout_lines': list(to_lines(responses))
}
module.exit_json(**result)
if __name__ == '__main__':
main()

View file

@ -0,0 +1,84 @@
Cisco IOS XR Software, Version 6.0.0[Default]
Copyright (c) 2015 by Cisco Systems, Inc.
ROM: GRUB, Version 1.99(0), DEV RELEASE
iosxr01 uptime is 11 weeks, 2 days, 5 hours, 48 minutes
System image file is "bootflash:disk0/xrvr-os-mbi-6.0.0/mbixrvr-rp.vm"
cisco IOS XRv Series (Pentium Celeron Stepping 3) processor with 3169911K bytes of memory.
Pentium Celeron Stepping 3 processor at 3836MHz, Revision 2.174
IOS XRv Chassis
1 Management Ethernet
6 GigabitEthernet
97070k bytes of non-volatile configuration memory.
866M bytes of hard disk.
2321392k bytes of disk0: (Sector size 512 bytes).
Configuration register on node 0/0/CPU0 is 0x2102
Boot device on node 0/0/CPU0 is disk0:
Package active on node 0/0/CPU0:
iosxr-infra, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-infra-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
iosxr-fwding, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-fwding-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
iosxr-routing, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-routing-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
iosxr-ce, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-ce-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
xrvr-os-mbi, V 6.0.0[Default], Cisco Systems, at disk0:xrvr-os-mbi-6.0.0
Built on Thu Dec 24 08:54:41 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
xrvr-base, V 6.0.0[Default], Cisco Systems, at disk0:xrvr-base-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
xrvr-fwding, V 6.0.0[Default], Cisco Systems, at disk0:xrvr-fwding-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
xrvr-mgbl-x, V 6.0.0[Default], Cisco Systems, at disk0:xrvr-mgbl-x-6.0.0
Built on Thu Dec 24 08:53:57 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
iosxr-mpls, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-mpls-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
iosxr-mgbl, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-mgbl-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
iosxr-mcast, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-mcast-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
xrvr-mcast-supp, V 6.0.0[Default], Cisco Systems, at disk0:xrvr-mcast-supp-6.0.0
Built on Thu Dec 24 08:53:49 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
iosxr-bng, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-bng-6.0.0
Built on Thu Dec 24 08:53:47 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
xrvr-bng-supp, V 6.0.0[Default], Cisco Systems, at disk0:xrvr-bng-supp-6.0.0
Built on Thu Dec 24 08:53:47 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
iosxr-security, V 6.0.0[Default], Cisco Systems, at disk0:iosxr-security-6.0.0
Built on Thu Dec 24 08:53:41 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie
xrvr-fullk9-x, V 6.0.0[Default], Cisco Systems, at disk0:xrvr-fullk9-x-6.0.0
Built on Thu Dec 24 08:55:12 UTC 2015
By iox-lnx-010 in /auto/srcarchive16/production/6.0.0/xrvr/workspace for pie

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@ -0,0 +1,143 @@
# (c) 2016 Red Hat 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 <http://www.gnu.org/licenses/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import json
from ansible.compat.tests import unittest
from ansible.compat.tests.mock import patch, MagicMock
from ansible.errors import AnsibleModuleExit
from ansible.modules.network.iosxr import iosxr_command
from ansible.module_utils import basic
from ansible.module_utils._text import to_bytes
def set_module_args(args):
args = json.dumps({'ANSIBLE_MODULE_ARGS': args})
basic._ANSIBLE_ARGS = to_bytes(args)
fixture_path = os.path.join(os.path.dirname(__file__), 'fixtures')
fixture_data = {}
def load_fixture(name):
path = os.path.join(fixture_path, name)
if path in fixture_data:
return fixture_data[path]
with open(path) as f:
data = f.read()
try:
data = json.loads(data)
except:
pass
fixture_data[path] = data
return data
class TestIosxrCommandModule(unittest.TestCase):
def setUp(self):
self.mock_run_commands = patch('ansible.modules.network.iosxr.iosxr_command.run_commands')
self.run_commands = self.mock_run_commands.start()
def tearDown(self):
self.mock_run_commands.stop()
def execute_module(self, failed=False, changed=False):
def load_from_file(*args, **kwargs):
module, commands = args
output = list()
for item in commands:
try:
obj = json.loads(item)
command = obj['command']
except ValueError:
command = item
filename = str(command).replace(' ', '_')
output.append(load_fixture(filename))
return output
self.run_commands.side_effect = load_from_file
with self.assertRaises(AnsibleModuleExit) as exc:
iosxr_command.main()
result = exc.exception.result
if failed:
self.assertTrue(result.get('failed'))
else:
self.assertEqual(result.get('changed'), changed, result)
return result
def test_iosxr_command_simple(self):
set_module_args(dict(commands=['show version']))
result = self.execute_module()
self.assertEqual(len(result['stdout']), 1)
self.assertTrue(result['stdout'][0].startswith('Cisco IOS XR Software'))
def test_iosxr_command_multiple(self):
set_module_args(dict(commands=['show version', 'show version']))
result = self.execute_module()
self.assertEqual(len(result['stdout']), 2)
self.assertTrue(result['stdout'][0].startswith('Cisco IOS XR Software'))
def test_iosxr_command_wait_for(self):
wait_for = 'result[0] contains "Cisco IOS"'
set_module_args(dict(commands=['show version'], wait_for=wait_for))
self.execute_module()
def test_iosxr_command_wait_for_fails(self):
wait_for = 'result[0] contains "test string"'
set_module_args(dict(commands=['show version'], wait_for=wait_for))
self.execute_module(failed=True)
self.assertEqual(self.run_commands.call_count, 10)
def test_iosxr_command_retries(self):
wait_for = 'result[0] contains "test string"'
set_module_args(dict(commands=['show version'], wait_for=wait_for, retries=2))
self.execute_module(failed=True)
self.assertEqual(self.run_commands.call_count, 2)
def test_iosxr_command_match_any(self):
wait_for = ['result[0] contains "Cisco IOS"',
'result[0] contains "test string"']
set_module_args(dict(commands=['show version'], wait_for=wait_for, match='any'))
self.execute_module()
def test_iosxr_command_match_all(self):
wait_for = ['result[0] contains "Cisco IOS"',
'result[0] contains "XR Software"']
set_module_args(dict(commands=['show version'], wait_for=wait_for, match='all'))
self.execute_module()
def test_iosxr_command_match_all_failure(self):
wait_for = ['result[0] contains "Cisco IOS"',
'result[0] contains "test string"']
commands = ['show version', 'show version']
set_module_args(dict(commands=commands, wait_for=wait_for, match='all'))
self.execute_module(failed=True)