You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
ansible/network/nxos/nxos_igmp_snooping.py

551 lines
17 KiB
Python

#!/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/>.
#
DOCUMENTATION = '''
---
module: nxos_igmp_snooping
version_added: "2.2"
short_description: Manages IGMP snooping global configuration.
description:
- Manages IGMP snooping global configuration.
author:
- Jason Edelman (@jedelman8)
- Gabriele Gerbino (@GGabriele)
extends_documentation_fragment: nxos
notes:
- When C(state=default), params will be reset to a default state.
- C(group_timeout) also accepts I(never) as an input.
options:
snooping:
description:
- Enables/disables IGMP snooping on the switch.
required: false
default: null
choices: ['true', 'false']
group_timeout:
description:
- Group membership timeout value for all VLANs on the device.
Accepted values are integer in range 1-10080, I(never) and
I(default).
required: false
default: null
link_local_grp_supp:
description:
- Global link-local groups suppression.
required: false
default: null
choices: ['true', 'false']
report_supp:
description:
- Global IGMPv1/IGMPv2 Report Suppression.
required: false
default: null
v3_report_supp:
description:
- Global IGMPv3 Report Suppression and Proxy Reporting.
required: false
default: null
choices: ['true', 'false']
state:
description:
- Manage the state of the resource.
required: false
default: present
choices: ['present','default']
'''
EXAMPLES = '''
# ensure igmp snooping params supported in this module are in there default state
- nxos_igmp_snooping:
state: default
host: inventory_hostname }}
username: un }}
password: pwd }}
# ensure following igmp snooping params are in the desired state
- nxos_igmp_snooping:
group_timeout: never
snooping: true
link_local_grp_supp: false
optimize_mcast_flood: false
report_supp: true
v3_report_supp: true
host: "{{ inventory_hostname }}"
username: {{ un }}
password: {{ pwd }}
'''
RETURN = '''
proposed:
description: k/v pairs of parameters passed into module
returned: always
type: dict
sample: {"group_timeout": "50", "link_local_grp_supp": true,
"report_supp": false, "snooping": false, "v3_report_supp": false}
existing:
description:
- k/v pairs of existing configuration
type: dict
sample: {"group_timeout": "never", "link_local_grp_supp": false,
"report_supp": true, "snooping": true, "v3_report_supp": true}
end_state:
description: k/v pairs of configuration after module execution
returned: always
type: dict
sample: {"group_timeout": "50", "link_local_grp_supp": true,
"report_supp": false, "snooping": false, "v3_report_supp": false}
updates:
description: command sent to the device
returned: always
type: list
sample: ["ip igmp snooping link-local-groups-suppression",
"ip igmp snooping group-timeout 50",
"no ip igmp snooping report-suppression",
"no ip igmp snooping v3-report-suppression",
"no ip igmp snooping"]
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 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]:
body = []
elif 'show run' in command:
body = response
else:
try:
if isinstance(response[0], str):
response = response[0].replace(command + '\n\n', '').strip()
body = [json.loads(response[0])]
else:
body = response
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)
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 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_group_timeout(config):
command = 'ip igmp snooping group-timeout'
REGEX = re.compile(r'(?:{0}\s)(?P<value>.*)$'.format(command), re.M)
value = ''
if command in config:
value = REGEX.search(config).group('value')
return value
def get_snooping(config):
REGEX = re.compile(r'{0}$'.format('no ip igmp snooping'), re.M)
value = False
try:
if REGEX.search(config):
value = False
except TypeError:
value = True
return value
def get_igmp_snooping(module):
command = 'show run all | include igmp.snooping'
existing = {}
body = execute_show_command(
command, module, command_type='cli_show_ascii')[0]
if body:
split_body = body.splitlines()
if 'no ip igmp snooping' in split_body:
existing['snooping'] = False
else:
existing['snooping'] = True
if 'no ip igmp snooping report-suppression' in split_body:
existing['report_supp'] = False
elif 'ip igmp snooping report-suppression' in split_body:
existing['report_supp'] = True
if 'no ip igmp snooping link-local-groups-suppression' in split_body:
existing['link_local_grp_supp'] = False
elif 'ip igmp snooping link-local-groups-suppression' in split_body:
existing['link_local_grp_supp'] = True
if 'ip igmp snooping v3-report-suppression' in split_body:
existing['v3_report_supp'] = True
else:
existing['v3_report_supp'] = False
existing['group_timeout'] = get_group_timeout(body)
return existing
def config_igmp_snooping(delta, existing, default=False):
CMDS = {
'snooping': 'ip igmp snooping',
'group_timeout': 'ip igmp snooping group-timeout {}',
'link_local_grp_supp': 'ip igmp snooping link-local-groups-suppression',
'v3_report_supp': 'ip igmp snooping v3-report-suppression',
'report_supp': 'ip igmp snooping report-suppression'
}
commands = []
command = None
for key, value in delta.iteritems():
if value:
if default and key == 'group_timeout':
if existing.get(key):
command = 'no ' + CMDS.get(key).format(existing.get(key))
else:
command = CMDS.get(key).format(value)
else:
command = 'no ' + CMDS.get(key).format(value)
if command:
commands.append(command)
command = None
return commands
def get_igmp_snooping_defaults():
group_timeout = 'dummy'
report_supp = True
link_local_grp_supp = True
v3_report_supp = False
snooping = True
args = dict(snooping=snooping, link_local_grp_supp=link_local_grp_supp,
report_supp=report_supp, v3_report_supp=v3_report_supp,
group_timeout=group_timeout)
default = dict((param, value) for (param, value) in args.iteritems()
if value is not None)
return default
def main():
argument_spec = dict(
snooping=dict(required=False, type='bool'),
group_timeout=dict(required=False, type='str'),
link_local_grp_supp=dict(required=False, type='bool'),
report_supp=dict(required=False, type='bool'),
v3_report_supp=dict(required=False, type='bool'),
state=dict(choices=['present', 'default'], default='present'),
)
module = get_network_module(argument_spec=argument_spec,
supports_check_mode=True)
snooping = module.params['snooping']
link_local_grp_supp = module.params['link_local_grp_supp']
report_supp = module.params['report_supp']
v3_report_supp = module.params['v3_report_supp']
group_timeout = module.params['group_timeout']
state = module.params['state']
args = dict(snooping=snooping, link_local_grp_supp=link_local_grp_supp,
report_supp=report_supp, v3_report_supp=v3_report_supp,
group_timeout=group_timeout)
proposed = dict((param, value) for (param, value) in args.iteritems()
if value is not None)
existing = get_igmp_snooping(module)
end_state = existing
changed = False
commands = []
if state == 'present':
delta = dict(
set(proposed.iteritems()).difference(existing.iteritems())
)
if delta:
command = config_igmp_snooping(delta, existing)
if command:
commands.append(command)
elif state == 'default':
proposed = get_igmp_snooping_defaults()
delta = dict(
set(proposed.iteritems()).difference(existing.iteritems())
)
if delta:
command = config_igmp_snooping(delta, existing, default=True)
if command:
commands.append(command)
cmds = flatten_list(commands)
results = {}
if cmds:
if module.check_mode:
module.exit_json(changed=True, commands=cmds)
else:
changed = True
execute_config_command(cmds, module)
end_state = get_igmp_snooping(module)
results['proposed'] = proposed
results['existing'] = existing
results['updates'] = cmds
results['changed'] = changed
results['end_state'] = end_state
module.exit_json(**results)
if __name__ == '__main__':
main()