1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
|
#!/usr/bin/python
#
# 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/>.
#
ANSIBLE_METADATA = {'status': ['preview'],
'supported_by': 'community',
'version': '1.0'}
DOCUMENTATION = '''
---
module: nxos_ntp
version_added: "2.2"
short_description: Manages core NTP configuration.
description:
- Manages core NTP configuration.
extends_documentation_fragment: nxos
author:
- Jason Edelman (@jedelman8)
options:
server:
description:
- Network address of NTP server.
required: false
default: null
peer:
description:
- Network address of NTP peer.
required: false
default: null
key_id:
description:
- Authentication key identifier to use with
given NTP server or peer.
required: false
default: null
prefer:
description:
- Makes given NTP server or peer the preferred
NTP server or peer for the device.
required: false
default: null
choices: ['enabled', 'disabled']
vrf_name:
description:
- Makes the device communicate with the given
NTP server or peer over a specific VRF.
required: false
default: null
source_addr:
description:
- Local source address from which NTP messages are sent.
required: false
default: null
source_int:
description:
- Local source interface from which NTP messages are sent.
Must be fully qualified interface name.
required: false
default: null
state:
description:
- Manage the state of the resource.
required: false
default: present
choices: ['present','absent']
'''
EXAMPLES = '''
# Set NTP Server with parameters
- nxos_ntp:
server: 1.2.3.4
key_id: 32
prefer: enabled
host: "{{ inventory_hostname }}"
username: "{{ un }}"
password: "{{ pwd }}"
'''
RETURN = '''
proposed:
description: k/v pairs of parameters passed into module
returned: always
type: dict
sample: {"address": "2.2.2.2", "key_id": "48",
"peer_type": "server", "prefer": "enabled",
"source": "3.3.3.3", "source_type": "source"}
existing:
description:
- k/v pairs of existing ntp server/peer
type: dict
sample: {"address": "2.2.2.2", "key_id": "32",
"peer_type": "server", "prefer": "enabled",
"source": "ethernet2/1", "source_type": "source-interface"}
end_state:
description: k/v pairs of ntp info after module execution
returned: always
type: dict
sample: {"address": "2.2.2.2", "key_id": "48",
"peer_type": "server", "prefer": "enabled",
"source": "3.3.3.3", "source_type": "source"}
updates:
description: command sent to the device
returned: always
type: list
sample: ["ntp server 2.2.2.2 prefer key 48",
"no ntp source-interface ethernet2/1", "ntp source 3.3.3.3"]
changed:
description: check to see if a change was made on the device
returned: always
type: boolean
sample: true
'''
import json
# COMMON CODE FOR MIGRATION
import re
from ansible.module_utils.basic import get_exception
from ansible.module_utils.netcfg import NetworkConfig, ConfigLine
from ansible.module_utils.shell import ShellError
try:
from ansible.module_utils.nxos import get_module
except ImportError:
from ansible.module_utils.nxos import NetworkModule
def to_list(val):
if isinstance(val, (list, tuple)):
return list(val)
elif val is not None:
return [val]
else:
return list()
class CustomNetworkConfig(NetworkConfig):
def expand_section(self, configobj, S=None):
if S is None:
S = list()
S.append(configobj)
for child in configobj.children:
if child in S:
continue
self.expand_section(child, S)
return S
def get_object(self, path):
for item in self.items:
if item.text == path[-1]:
parents = [p.text for p in item.parents]
if parents == path[:-1]:
return item
def to_block(self, section):
return '\n'.join([item.raw for item in section])
def get_section(self, path):
try:
section = self.get_section_objects(path)
return self.to_block(section)
except ValueError:
return list()
def get_section_objects(self, path):
if not isinstance(path, list):
path = [path]
obj = self.get_object(path)
if not obj:
raise ValueError('path does not exist in config')
return self.expand_section(obj)
def add(self, lines, parents=None):
"""Adds one or lines of configuration
"""
ancestors = list()
offset = 0
obj = None
## global config command
if not parents:
for line in to_list(lines):
item = ConfigLine(line)
item.raw = line
if item not in self.items:
self.items.append(item)
else:
for index, p in enumerate(parents):
try:
i = index + 1
obj = self.get_section_objects(parents[:i])[0]
ancestors.append(obj)
except ValueError:
# add parent to config
offset = index * self.indent
obj = ConfigLine(p)
obj.raw = p.rjust(len(p) + offset)
if ancestors:
obj.parents = list(ancestors)
ancestors[-1].children.append(obj)
self.items.append(obj)
ancestors.append(obj)
# add child objects
for line in to_list(lines):
# check if child already exists
for child in ancestors[-1].children:
if child.text == line:
break
else:
offset = len(parents) * self.indent
item = ConfigLine(line)
item.raw = line.rjust(len(line) + offset)
item.parents = ancestors
ancestors[-1].children.append(item)
self.items.append(item)
def get_network_module(**kwargs):
try:
return get_module(**kwargs)
except NameError:
return NetworkModule(**kwargs)
def get_config(module, include_defaults=False):
config = module.params['config']
if not config:
try:
config = module.get_config()
except AttributeError:
defaults = module.params['include_defaults']
config = module.config.get_config(include_defaults=defaults)
return CustomNetworkConfig(indent=2, contents=config)
def load_config(module, candidate):
config = get_config(module)
commands = candidate.difference(config)
commands = [str(c).strip() for c in commands]
save_config = module.params['save']
result = dict(changed=False)
if commands:
if not module.check_mode:
try:
module.configure(commands)
except AttributeError:
module.config(commands)
if save_config:
try:
module.config.save_config()
except AttributeError:
module.execute(['copy running-config startup-config'])
result['changed'] = True
result['updates'] = commands
return result
# END OF COMMON CODE
def execute_config_command(commands, module):
try:
module.configure(commands)
except ShellError:
clie = get_exception()
module.fail_json(msg='Error sending CLI commands',
error=str(clie), commands=commands)
except AttributeError:
try:
commands.insert(0, 'configure')
module.cli.add_commands(commands, output='config')
module.cli.run_commands()
except ShellError:
clie = get_exception()
module.fail_json(msg='Error sending CLI commands',
error=str(clie), commands=commands)
def get_cli_body_ssh(command, response, module):
"""Get response for when transport=cli. This is kind of a hack and mainly
needed because these modules were originally written for NX-API. And
not every command supports "| json" when using cli/ssh. As such, we assume
if | json returns an XML string, it is a valid command, but that the
resource doesn't exist yet. Instead, the output will be a raw string
when issuing commands containing 'show run'.
"""
if 'xml' in response[0] or response[0] == '\n':
body = []
elif 'show run' in command:
body = response
else:
try:
body = [json.loads(response[0])]
except ValueError:
module.fail_json(msg='Command does not support JSON output',
command=command)
return body
def execute_show(cmds, module, command_type=None):
command_type_map = {
'cli_show': 'json',
'cli_show_ascii': 'text'
}
try:
if command_type:
response = module.execute(cmds, command_type=command_type)
else:
response = module.execute(cmds)
except ShellError:
clie = get_exception()
module.fail_json(msg='Error sending {0}'.format(cmds),
error=str(clie))
except AttributeError:
try:
if command_type:
command_type = command_type_map.get(command_type)
module.cli.add_commands(cmds, output=command_type)
response = module.cli.run_commands()
else:
module.cli.add_commands(cmds, raw=True)
response = module.cli.run_commands()
except ShellError:
clie = get_exception()
module.fail_json(msg='Error sending {0}'.format(cmds),
error=str(clie))
return response
def execute_show_command(command, module, command_type='cli_show'):
if module.params['transport'] == 'cli':
if 'show run' not in command:
command += ' | json'
cmds = [command]
response = execute_show(cmds, module)
body = get_cli_body_ssh(command, response, module)
elif module.params['transport'] == 'nxapi':
cmds = [command]
body = execute_show(cmds, module, command_type=command_type)
return body
def flatten_list(command_lists):
flat_command_list = []
for command in command_lists:
if isinstance(command, list):
flat_command_list.extend(command)
else:
flat_command_list.append(command)
return flat_command_list
def get_ntp_source(module):
source_type = None
source = None
command = 'show run | inc ntp.source'
output = execute_show_command(command, module, command_type='cli_show_ascii')
if output:
try:
if 'interface' in output[0]:
source_type = 'source-interface'
else:
source_type = 'source'
source = output[0].split()[2].lower()
except AttributeError:
source_type = None
source = None
return source_type, source
def get_ntp_peer(module):
command = 'show run | inc ntp.(server|peer)'
ntp_peer_list = []
ntp = execute_show_command(
command, module, command_type='cli_show_ascii')[0]
ntp_regex = (
".*ntp\s(server\s(?P<address>\S+)|peer\s(?P<peer_address>\S+))"
"\s*((?P<prefer>prefer)\s*)?(use-vrf\s(?P<vrf_name>\S+)\s*)?"
"(key\s(?P<key_id>\d+))?.*"
)
split_ntp = ntp.splitlines()
for peer_line in split_ntp:
ntp_peer = {}
try:
peer_address = None
vrf_name = None
prefer = None
key_id = None
match_ntp = re.match(ntp_regex, peer_line, re.DOTALL)
group_ntp = match_ntp.groupdict()
address = group_ntp["address"]
peer_address = group_ntp['peer_address']
prefer = group_ntp['prefer']
vrf_name = group_ntp['vrf_name']
key_id = group_ntp['key_id']
if prefer is not None:
prefer = 'enabled'
else:
prefer = 'disabled'
if address is not None:
peer_type = 'server'
elif peer_address is not None:
peer_type = 'peer'
address = peer_address
args = dict(peer_type=peer_type, address=address, prefer=prefer,
vrf_name=vrf_name, key_id=key_id)
ntp_peer = dict((k, v) for k, v in args.iteritems())
ntp_peer_list.append(ntp_peer)
except AttributeError:
ntp_peer_list = []
return ntp_peer_list
def get_ntp_existing(address, peer_type, module):
peer_dict = {}
peer_server_list = []
peer_list = get_ntp_peer(module)
for peer in peer_list:
if peer['address'] == address:
peer_dict.update(peer)
else:
peer_server_list.append(peer)
source_type, source = get_ntp_source(module)
if (source_type is not None and source is not None):
peer_dict['source_type'] = source_type
peer_dict['source'] = source
return (peer_dict, peer_server_list)
def set_ntp_server_peer(peer_type, address, prefer, key_id, vrf_name):
command_strings = []
if prefer:
command_strings.append(' prefer')
if key_id:
command_strings.append(' key {0}'.format(key_id))
if vrf_name:
command_strings.append(' use-vrf {0}'.format(vrf_name))
command_strings.insert(0, 'ntp {0} {1}'.format(peer_type, address))
command = ''.join(command_strings)
return command
def config_ntp(delta, existing):
address = delta.get('address', existing.get('address'))
peer_type = delta.get('peer_type', existing.get('peer_type'))
vrf_name = delta.get('vrf_name', existing.get('vrf_name'))
key_id = delta.get('key_id', existing.get('key_id'))
prefer = delta.get('prefer', existing.get('prefer'))
source_type = delta.get('source_type')
source = delta.get('source')
if prefer:
if prefer == 'enabled':
prefer = True
elif prefer == 'disabled':
prefer = False
if source:
source_type = delta.get('source_type', existing.get('source_type'))
ntp_cmds = []
if peer_type:
ntp_cmds.append(set_ntp_server_peer(
peer_type, address, prefer, key_id, vrf_name))
if source:
existing_source_type = existing.get('source_type')
existing_source = existing.get('source')
if existing_source_type and source_type != existing_source_type:
ntp_cmds.append('no ntp {0} {1}'.format(existing_source_type, existing_source))
ntp_cmds.append('ntp {0} {1}'.format(source_type, source))
return ntp_cmds
def main():
argument_spec = dict(
server=dict(type='str'),
peer=dict(type='str'),
key_id=dict(type='str'),
prefer=dict(type='str', choices=['enabled', 'disabled']),
vrf_name=dict(type='str'),
source_addr=dict(type='str'),
source_int=dict(type='str'),
state=dict(choices=['absent', 'present'], default='present'),
)
module = get_network_module(argument_spec=argument_spec,
mutually_exclusive=[
['server','peer'],
['source_addr','source_int']],
supports_check_mode=True)
server = module.params['server'] or None
peer = module.params['peer'] or None
key_id = module.params['key_id']
prefer = module.params['prefer']
vrf_name = module.params['vrf_name']
source_addr = module.params['source_addr']
source_int = module.params['source_int']
state = module.params['state']
if source_int is not None:
source_int = source_int.lower()
if server:
peer_type = 'server'
address = server
elif peer:
peer_type = 'peer'
address = peer
else:
peer_type = None
address = None
source_type = None
source = None
if source_addr:
source_type = 'source'
source = source_addr
elif source_int:
source_type = 'source-interface'
source = source_int
if key_id or vrf_name or prefer:
if not server and not peer:
module.fail_json(
msg='Please supply the server or peer parameter')
args = dict(peer_type=peer_type, address=address, key_id=key_id,
prefer=prefer, vrf_name=vrf_name, source_type=source_type,
source=source)
proposed = dict((k, v) for k, v in args.iteritems() if v is not None)
existing, peer_server_list = get_ntp_existing(address, peer_type, module)
end_state = existing
changed = False
commands = []
if state == 'present':
delta = dict(set(proposed.iteritems()).difference(existing.iteritems()))
if delta:
command = config_ntp(delta, existing)
if command:
commands.append(command)
elif state == 'absent':
if existing.get('peer_type') and existing.get('address'):
command = 'no ntp {0} {1}'.format(
existing['peer_type'], existing['address'])
if command:
commands.append([command])
existing_source_type = existing.get('source_type')
existing_source = existing.get('source')
proposed_source_type = proposed.get('source_type')
proposed_source = proposed.get('source')
if proposed_source_type:
if proposed_source_type == existing_source_type:
if proposed_source == existing_source:
command = 'no ntp {0} {1}'.format(
existing_source_type, existing_source)
if command:
commands.append([command])
cmds = flatten_list(commands)
if cmds:
if module.check_mode:
module.exit_json(changed=True, commands=cmds)
else:
changed = True
execute_config_command(cmds, module)
end_state = get_ntp_existing(address, peer_type, module)[0]
if 'configure' in cmds:
cmds.pop(0)
results = {}
results['proposed'] = proposed
results['existing'] = existing
results['updates'] = cmds
results['changed'] = changed
results['end_state'] = end_state
results['peer_server_list'] = peer_server_list
module.exit_json(**results)
from ansible.module_utils.basic import *
if __name__ == '__main__':
main()
|