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#!/usr/bin/env python3
#
# Copyright (C) 2023 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 import ConfigError
from vyos import frr
from vyos import airbag
airbag.enable()
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
base = ['protocols', 'segment-routing']
sr = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True, no_tag_node_value_mangle=True)
# We have gathered the dict representation of the CLI, but there are default
# options which we need to update into the dictionary retrived.
sr = conf.merge_defaults(sr, recursive=True)
return sr
def verify(static):
return None
def generate(static):
if not static:
return None
static['new_frr_config'] = render_to_string('frr/zebra.segment_routing.frr.j2', static)
return None
def apply(static):
zebra_daemon = 'zebra'
# Save original configuration prior to starting any commit actions
frr_cfg = frr.FRRConfig()
frr_cfg.load_configuration(zebra_daemon)
frr_cfg.modify_section(r'^segment-routing')
if 'new_frr_config' in static:
frr_cfg.add_before(frr.default_add_before, static['new_frr_config'])
frr_cfg.commit_configuration(zebra_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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