ansible/library/net_infrastructure/lldp

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#!/usr/bin/python -tt
# 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/>.
import subprocess
DOCUMENTATION = '''
---
module: lldp
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version_added: 1.6
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short_description: get details reported by lldp
description:
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- Reads data out of lldpctl
options: {}
author: Andy Hill
notes:
- Requires lldpd running and lldp enabled on switches
'''
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EXAMPLES = '''
# Retrieve switch/port information
- name: Gather information from lldp
lldp:
- name: Print each switch/port
debug: msg="{{ lldp[item]['chassis']['name'] }} / {{ lldp[item]['port']['ifalias'] }}
with_items: lldp.keys()
# TASK: [Print each switch/port] ***********************************************************
# ok: [10.13.0.22] => (item=eth2) => {"item": "eth2", "msg": "switch1.example.com / Gi0/24"}
# ok: [10.13.0.22] => (item=eth1) => {"item": "eth1", "msg": "switch2.example.com / Gi0/3"}
# ok: [10.13.0.22] => (item=eth0) => {"item": "eth0", "msg": "switch3.example.com / Gi0/3"}
'''
def gather_lldp():
cmd = ['lldpctl', '-f', 'keyvalue']
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE)
(output, err) = proc.communicate()
if output:
output_dict = {}
lldp_entries = output.split("\n")
for entry in lldp_entries:
if entry:
path, value = entry.strip().split("=", 1)
path = path.split(".")
path_components, final = path[:-1], path[-1]
current_dict = output_dict
for path_component in path_components:
current_dict[path_component] = current_dict.get(path_component, {})
current_dict = current_dict[path_component]
current_dict[final] = value
return output_dict
def main():
module = AnsibleModule({})
lldp_output = gather_lldp()
try:
data = {'lldp': lldp_output['lldp']}
module.exit_json(ansible_facts=data)
except TypeError:
module.fail_json(msg="lldpctl command failed. is lldpd running?")
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# import module snippets
from ansible.module_utils.basic import *
main()