#!/usr/bin/env python3 # # Copyright (C) 2018-2022 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 from socket import gethostname from sys import exit from urllib3 import PoolManager from vyos.base import Warning from vyos.config import Config from vyos.configdict import dict_merge from vyos.configverify import verify_interface_exists from vyos.template import render from vyos.util import call from vyos.util import chown from vyos.xml import defaults from vyos import ConfigError from vyos import airbag airbag.enable() config_file = r'/etc/salt/minion' master_keyfile = r'/opt/vyatta/etc/config/salt/pki/minion/master_sign.pub' user='minion' group='vyattacfg' def get_config(config=None): if config: conf = config else: conf = Config() base = ['service', 'salt-minion'] if not conf.exists(base): return None salt = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True) # ID default is dynamic thus we can not use defaults() if 'id' not in salt: salt['id'] = gethostname() # We have gathered the dict representation of the CLI, but there are default # options which we need to update into the dictionary retrived. default_values = defaults(base) salt = dict_merge(default_values, salt) if not conf.exists(base): return None else: conf.set_level(base) return salt def verify(salt): if not salt: return None if 'hash' in salt and salt['hash'] == 'sha1': Warning('Do not use sha1 hashing algorithm, upgrade to sha256 or later!') if 'source_interface' in salt: verify_interface_exists(salt['source_interface']) return None def generate(salt): if not salt: return None render(config_file, 'salt-minion/minion.j2', salt, user=user, group=group) if not os.path.exists(master_keyfile): if 'master_key' in salt: req = PoolManager().request('GET', salt['master_key'], preload_content=False) with open(master_keyfile, 'wb') as f: while True: data = req.read(1024) if not data: break f.write(data) req.release_conn() chown(master_keyfile, user, group) return None def apply(salt): service_name = 'salt-minion.service' if not salt: # Salt removed from running config call(f'systemctl stop {service_name}') if os.path.exists(config_file): os.unlink(config_file) else: call(f'systemctl restart {service_name}') return None if __name__ == '__main__': try: c = get_config() verify(c) generate(c) apply(c) except ConfigError as e: print(e) exit(1)