#!/usr/bin/env python3 # # Copyright (C) 2018-2020 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 vyos.config import Config from vyos.configverify import verify_vrf from vyos import ConfigError from vyos.util import call from vyos.template import render from vyos import airbag airbag.enable() config_file = r'/etc/ntp.conf' systemd_override = r'/etc/systemd/system/ntp.service.d/override.conf' def get_config(): conf = Config() base = ['system', 'ntp'] ntp = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True) return ntp def verify(ntp): # bail out early - looks like removal from running config if not ntp: return None if len(ntp.get('allow_clients', {})) and not (len(ntp.get('server', {})) > 0): raise ConfigError('NTP server not configured') verify_vrf(ntp) return None def generate(ntp): # bail out early - looks like removal from running config if not ntp: return None render(config_file, 'ntp/ntp.conf.tmpl', ntp, trim_blocks=True) render(systemd_override, 'ntp/override.conf.tmpl', ntp, trim_blocks=True) return None def apply(ntp): if not ntp: # NTP support is removed in the commit call('systemctl stop ntp.service') if os.path.exists(config_file): os.unlink(config_file) if os.path.isfile(systemd_override): os.unlink(systemd_override) # Reload systemd manager configuration call('systemctl daemon-reload') if ntp: call('systemctl restart ntp.service') return None if __name__ == '__main__': try: c = get_config() verify(c) generate(c) apply(c) except ConfigError as e: print(e) exit(1)