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
|
#!/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_igmp
version_added: "2.2"
short_description: Manages IGMP global configuration.
description:
- Manages IGMP global configuration configuration settings.
extends_documentation_fragment: nxos
author:
- Jason Edelman (@jedelman8)
- Gabriele Gerbino (@GGabriele)
notes:
- When C(state=default), all supported params will be reset to a
default state.
- If restart is set to true with other params set, the restart will happen
last, i.e. after the configuration takes place.
options:
flush_routes:
description:
- Removes routes when the IGMP process is restarted. By default,
routes are not flushed.
required: false
default: null
choices: ['true', 'false']
enforce_rtr_alert:
description:
- Enables or disables the enforce router alert option check for
IGMPv2 and IGMPv3 packets.
required: false
default: null
choices: ['true', 'false']
restart:
description:
- Restarts the igmp process (using an exec config command).
required: false
default: null
choices: ['true', 'false']
state:
description:
- Manages desired state of the resource.
required: false
default: present
choices: ['present', 'default']
'''
EXAMPLES = '''
- name: Default igmp global params (all params except restart)
nxos_igmp:
state: default
host: "{{ inventory_hostname }}"
- name: Ensure the following igmp global config exists on the device
nxos_igmp:
flush_routes: true
enforce_rtr_alert: true
host: "{{ inventory_hostname }}"
- name: Restart the igmp process
nxos_igmp:
restart: true
host: "{{ inventory_hostname }}"
'''
RETURN = '''
proposed:
description: k/v pairs of parameters passed into module
returned: verbose mode
type: dict
sample: {"enforce_rtr_alert": true, "flush_routes": true}
existing:
description: k/v pairs of existing IGMP configuration
returned: verbose mode
type: dict
sample: {"enforce_rtr_alert": true, "flush_routes": false}
end_state:
description: k/v pairs of IGMP configuration after module execution
returned: verbose mode
type: dict
sample: {"enforce_rtr_alert": true, "flush_routes": true}
updates:
description: commands sent to the device
returned: always
type: list
sample: ["ip igmp flush-routes"]
changed:
description: check to see if a change was made on the device
returned: always
type: boolean
sample: true
'''
# 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
PARAM_TO_COMMAND_KEYMAP = {
'flush_routes': 'ip igmp flush-routes',
'enforce_rtr_alert': 'ip igmp enforce-router-alert'
}
def get_value(arg, config):
REGEX = re.compile(r'{0}\s*$'.format(PARAM_TO_COMMAND_KEYMAP[arg]), re.M)
value = False
try:
if REGEX.search(config):
value = True
except TypeError:
value = False
return value
def get_existing(module, args):
existing = {}
config = str(get_config(module))
for arg in args:
existing[arg] = get_value(arg, config)
return existing
def invoke(name, *args, **kwargs):
func = globals().get(name)
if func:
return func(*args, **kwargs)
def get_commands(module, existing, proposed, candidate):
commands = list()
proposed_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, proposed)
existing_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, existing)
if module.params['state'] == 'default':
for key, value in proposed_commands.iteritems():
if existing_commands.get(key):
commands.append('no {0}'.format(key))
else:
for key, value in proposed_commands.iteritems():
if value is True:
commands.append(key)
else:
if existing_commands.get(key):
commands.append('no {0}'.format(key))
if module.params['restart']:
commands.append('restart igmp')
if commands:
parents = []
candidate.add(commands, parents=parents)
def apply_key_map(key_map, table):
new_dict = {}
for key, value in table.items():
new_key = key_map.get(key)
if new_key:
value = table.get(key)
if value:
new_dict[new_key] = value
else:
new_dict[new_key] = value
return new_dict
def main():
argument_spec = dict(
flush_routes=dict(type='bool'),
enforce_rtr_alert=dict(type='bool'),
restart=dict(type='bool', default=False),
state=dict(choices=['present', 'default'], default='present'),
include_defaults=dict(default=False),
config=dict(),
save=dict(type='bool', default=False)
)
module = get_network_module(argument_spec=argument_spec,
supports_check_mode=True)
state = module.params['state']
restart = module.params['restart']
if (state == 'default' and (module.params['flush_routes'] is not None or
module.params['enforce_rtr_alert'] is not None)):
module.fail_json(msg='When state=default other params have no effect.')
args = [
"flush_routes",
"enforce_rtr_alert",
]
existing = invoke('get_existing', module, args)
end_state = existing
proposed = dict((k, v) for k, v in module.params.iteritems()
if v is not None and k in args)
proposed_args = proposed.copy()
if state == 'default':
proposed_args = dict((k, False) for k in args)
result = {}
if (state == 'present' or (state == 'default' and
True in existing.values()) or restart):
candidate = CustomNetworkConfig(indent=3)
invoke('get_commands', module, existing, proposed_args, candidate)
try:
response = load_config(module, candidate)
result.update(response)
except ShellError:
exc = get_exception()
module.fail_json(msg=str(exc))
else:
result['updates'] = []
if restart:
proposed['restart'] = restart
result['connected'] = module.connected
if module._verbosity > 0:
end_state = invoke('get_existing', module, args)
result['end_state'] = end_state
result['existing'] = existing
result['proposed'] = proposed
module.exit_json(**result)
if __name__ == '__main__':
main()
|