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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
from vyos.util import cmd
from vyos import ConfigError
from vyos import airbag
airbag.enable()
config_file = r'/run/sysctl/99-vyos-sysctl.conf'
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
base = ['system', 'sysctl']
if not conf.exists(base):
return None
sysctl = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True,
no_tag_node_value_mangle=True)
return sysctl
def verify(sysctl):
return None
def generate(sysctl):
if not sysctl:
if os.path.isfile(config_file):
os.unlink(config_file)
return None
render(config_file, 'system/sysctl.conf.tmpl', sysctl)
return None
def apply(sysctl):
if not sysctl:
return None
# We silently ignore all errors
# See: https://bugzilla.redhat.com/show_bug.cgi?id=1264080
cmd(f'sysctl -f {config_file}')
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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