From a8e73794ec421ad2bb0053214504f20a1dc3b21a Mon Sep 17 00:00:00 2001 From: Viacheslav Hletenko Date: Mon, 5 Sep 2022 18:35:39 +0000 Subject: update-check: T3476: Allow update-check for VyOS images Ability to autocheck available new images Parse remote URL JSON image-version.json file and compare version VyOS with a local current version, if find diff sent wall message that the new image is available Also, add op-mode command to check images "show system image" With option "auto-check" check will be once per 12 hours set system update-check auto-check set system update-check url 'http://example.com/image-version.json' If new version is available shows it per login (MOTD) --- src/conf_mode/system_update_check.py | 93 ++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100755 src/conf_mode/system_update_check.py (limited to 'src/conf_mode/system_update_check.py') diff --git a/src/conf_mode/system_update_check.py b/src/conf_mode/system_update_check.py new file mode 100755 index 000000000..08ecfcb81 --- /dev/null +++ b/src/conf_mode/system_update_check.py @@ -0,0 +1,93 @@ +#!/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 . + +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) -- cgit v1.2.3