#!/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 os import json import jmespath from pathlib import Path from sys import exit from vyos.config import Config from vyos.util import call from vyos import ConfigError from vyos import airbag airbag.enable() base = ['system', 'update-check'] service_name = 'vyos-system-update' service_conf = Path(f'/run/{service_name}.conf') motd_file = Path('/run/motd.d/10-vyos-update') def get_config(config=None): if config: conf = config else: conf = Config() if not conf.exists(base): return None config = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True, no_tag_node_value_mangle=True) return config def verify(config): # bail out early - looks like removal from running config if config is None: return if 'url' not in config: raise ConfigError('URL is required!') def generate(config): # bail out early - looks like removal from running config if config is None: # Remove old config and return service_conf.unlink(missing_ok=True) # MOTD used in /run/motd.d/10-update motd_file.unlink(missing_ok=True) return None # Write configuration file conf_json = json.dumps(config, indent=4) service_conf.write_text(conf_json) return None def apply(config): if config: if 'auto_check' in config: call(f'systemctl restart {service_name}.service') else: call(f'systemctl stop {service_name}.service') if __name__ == '__main__': try: c = get_config() verify(c) generate(c) apply(c) except ConfigError as e: print(e) exit(1)