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#!/usr/bin/env python3
#
# Copyright (C) 2021 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 os
from sys import exit
from vyos.config import Config
from vyos.template import render_to_string
from vyos.util import call
from vyos import ConfigError
from vyos import frr
from vyos import airbag
airbag.enable()
frr_daemon = 'staticd'
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
base = ['protocols', 'vrf']
vrf = conf.get_config_dict(base, key_mangling=('-', '_'))
return vrf
def verify(vrf):
return None
def generate(vrf):
vrf['new_frr_config'] = render_to_string('frr/vrf.frr.tmpl', vrf)
return None
def apply(vrf):
# Save original configuration prior to starting any commit actions
frr_cfg = frr.FRRConfig()
frr_cfg.load_configuration(frr_daemon)
frr_cfg.modify_section(r'vrf \S+', '')
frr_cfg.add_before(r'(ip prefix-list .*|route-map .*|line vty)', vrf['new_frr_config'])
frr_cfg.commit_configuration(frr_daemon)
# If FRR config is blank, rerun the blank commit x times due to frr-reload
# behavior/bug not properly clearing out on one commit.
if vrf['new_frr_config'] == '':
for a in range(5):
frr_cfg.commit_configuration(frr_daemon)
return None
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)
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