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vrf.py
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vrf.py
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#!/usr/bin/env python3
#
# Copyright (C) 2022 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import json
import sys
from tabulate import tabulate
from vyos.util import cmd
import vyos.opmode
def _get_raw_data():
"""
:return: list
"""
output = cmd('sudo ip --json --brief link show type vrf')
data = json.loads(output)
return data
def _get_vrf_members(vrf: str) -> list:
"""
Get list of interface VRF members
:param vrf: str
:return: list
"""
output = cmd(f'sudo ip --json --brief link show master {vrf}')
answer = json.loads(output)
interfaces = []
for data in answer:
if 'ifname' in data:
interfaces.append(data.get('ifname'))
return interfaces if len(interfaces) > 0 else ['n/a']
def _get_formatted_output(raw_data):
data_entries = []
for vrf in raw_data:
name = vrf.get('ifname')
state = vrf.get('operstate').lower()
hw_address = vrf.get('address')
flags = ','.join(vrf.get('flags')).lower()
members = ','.join(_get_vrf_members(name))
data_entries.append([name, state, hw_address, flags, members])
headers = ["Name", "State", "MAC address", "Flags", "Interfaces"]
output = tabulate(data_entries, headers, numalign="left")
return output
def show(raw: bool):
vrf_data = _get_raw_data()
if raw:
return vrf_data
else:
return _get_formatted_output(vrf_data)
if __name__ == "__main__":
try:
res = vyos.opmode.run(sys.modules[__name__])
if res:
print(res)
except ValueError as e:
print(e)
sys.exit(1)

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