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initial add of new module vyos_facts

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* adds collection of default facts
* adds collection of configuration facts
* adds collection of lldp neighbors
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Peter Sprygada 2016-07-06 07:25:42 -04:00 committed by Matt Clay
parent 9336e0d070
commit cff91c4c3b
1 changed files with 308 additions and 0 deletions
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lib/ansible/modules/network/vyos/vyos_facts.py Normal file
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#!/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: vyos_facts
version_added: "2.2"
author: "Peter Sprygada (@privateip)"
short_description: Collect facts from remote devices running OS
description:
- Collects a base set of device facts from a remote device that
is running VyOS. The M(vyos_facts) module prepends all of the
base network fact keys with U(ansible_net_<fact>). The facts
module will always collect a base set of facts from the device
and can enable or disable collection of additional facts.
extends_documentation_fragment: vyos
options:
gather_subset:
description:
- When supplied, this argument will restrict the facts collected
to a given subset. Possible values for this argument inlcude
all, hardware, config, and interfaces. Can specify a list of
values to include a larger subset. Values can also be used
with an initial M(!) to specify that a specific subset should
not be collected.
required: false
default: "!config"
"""
EXAMPLES = """
# Note: examples below use the following provider dict to handle
# transport and authentication to the node
vars:
cli:
host: "{{ inventory_hostname }}"
username: vyos
password: vyos
transport: cli
- name: collect all facts from the device
vyos_facts:
gather_subset: all
- name: collect only the config and default facts
vyos_facts:
gather_subset:config
- name: collect everything exception the config
vyos_facts:
gather_subset: "!config"
"""
RETURN = """
ansible_net_config:
description: The running-config from the device
returned: when config is configured
type: str
ansible_net_commits:
descrption: The set of available configuration revisions
returned: when present
type: list
ansible_net_hostname:
description: The configured system hostname
returned: always
type: str
ansible_net_model:
description: The device model string
returned: always
type: str
ansible_net_serialnum:
description: The serial number of the device
returned: always
type: str
ansible_net_version:
description: The version of the software running
returned: always
type: str
ansible_net_neighbors:
description: The set of LLDP neighbors
returned: when interface is configured
type: list
ansible_net_gather_subset:
description: The list of subsets gathered by the module
returned: always
type: list
"""
import re
from ansible.module_utils.netcmd import CommandRunner
from ansible.module_utils.vyos import NetworkModule
class FactsBase(object):
def __init__(self, runner):
self.runner = runner
self.facts = dict()
self.commands()
class Default(FactsBase):
def commands(self):
self.runner.add_command('show version')
self.runner.add_command('show host name')
def populate(self):
data = self.runner.get_command('show version')
self.facts['version'] = self.parse_version(data)
self.facts['serialnum'] = self.parse_serialnum(data)
self.facts['model'] = self.parse_model(data)
self.facts['hostname'] = self.runner.get_command('show host name')
def parse_version(self, data):
match = re.search(r'Version:\s*(\S+)', data)
if match:
return match.group(1)
def parse_model(self, data):
match = re.search(r'HW model:\s*(\S+)', data)
if match:
return match.group(1)
def parse_serialnum(self, data):
match = re.search(r'HW S/N:\s+(\S+)', data)
if match:
return match.group(1)
class Config(FactsBase):
def commands(self):
self.runner.add_command('show configuration commands')
self.runner.add_command('show system commit')
def populate(self):
config = self.runner.get_command('show configuration commands')
self.facts['config'] = str(config).split('\n')
commits = self.runner.get_command('show system commit')
entries = list()
entry = None
for line in commits.split('\n'):
match = re.match('(\d+)\s+(.+)by(.+)via(.+)', line)
if match:
if entry:
entries.append(entry)
entry = dict(revision=match.group(1),
datetime=match.group(2),
by=str(match.group(3)).strip(),
via=str(match.group(4)).strip(),
comment=None)
else:
entry['comment'] = line.strip()
self.facts['commits'] = entries
class Neighbors(FactsBase):
def commands(self):
self.runner.add_command('show lldp neighbors')
self.runner.add_command('show lldp neighbors detail')
def populate(self):
all_neighbors = self.runner.get_command('show lldp neighbors')
if 'LLDP not configured' not in all_neighbors:
neighbors = self.parse(
self.runner.get_command('show lldp neighbors detail')
)
self.facts['neighbors'] = self.parse_neighbors(neighbors)
def parse(self, data):
parsed = list()
values = None
for line in data.split('\n'):
if len(line) == 0:
continue
elif line[0] == ' ':
values += '\n%s' % line
elif line.startswith('Interface'):
if values:
parsed.append(values)
values = line
return parsed
def parse_neighbors(self, data):
facts = dict()
for item in data:
interface = self.parse_interface(item)
host = self.parse_host(item)
port = self.parse_port(item)
if interface not in facts:
facts[interface] = list()
facts[interface].append(dict(host=host, port=port))
return facts
def parse_interface(self, data):
match = re.search(r'^Interface:\s+(\S+),', data)
return match.group(1)
def parse_host(self, data):
match = re.search(r'SysName:\s+(.+)$', data, re.M)
if match:
return match.group(1)
def parse_port(self, data):
match = re.search(r'PortDescr:\s+(.+)$', data, re.M)
if match:
return match.group(1)
FACT_SUBSETS = dict(
default=Default,
neighbors=Neighbors,
config=Config
)
VALID_SUBSETS = frozenset(FACT_SUBSETS.keys())
def main():
spec = dict(
gather_subset=dict(default=['!config'], type='list')
)
module = NetworkModule(argument_spec=spec, supports_check_mode=True)
gather_subset = module.params['gather_subset']
runable_subsets = set()
exclude_subsets = set()
for subset in gather_subset:
if subset == 'all':
runable_subsets.update(VALID_SUBSETS)
continue
if subset.startswith('!'):
subset = subset[1:]
if subset == 'all':
exclude_subsets.update(VALID_SUBSETS)
continue
exclude = True
else:
exclude = False
if subset not in VALID_SUBSETS:
module.fail_json(msg='Bad subset')
if exclude:
exclude_subsets.add(subset)
else:
runable_subsets.add(subset)
if not runable_subsets:
runable_subsets.update(VALID_SUBSETS)
runable_subsets.difference_update(exclude_subsets)
runable_subsets.add('default')
facts = dict()
facts['gather_subset'] = list(runable_subsets)
runner = CommandRunner(module)
instances = list()
for key in runable_subsets:
instances.append(FACT_SUBSETS[key](runner))
runner.run_commands()
try:
for inst in instances:
inst.populate()
facts.update(inst.facts)
except Exception:
exc = get_exception()
module.fail_json(msg='unknown failure', output=runner.items, exc=str(exc))
ansible_facts = dict()
for key, value in facts.iteritems():
key = 'ansible_net_%s' % key
ansible_facts[key] = value
module.exit_json(ansible_facts=ansible_facts)
if __name__ == '__main__':
main()