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#!/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
from sys import exit
from vyos.config import Config
from vyos.configdict import dict_merge
from vyos.template import render
from vyos.util import call
from vyos.xml import defaults
from vyos import ConfigError
from vyos import airbag
airbag.enable()
owamp_config_dir = '/etc/owamp-server'
owamp_config_file = f'{owamp_config_dir}/owamp-server.conf'
systemd_override_owamp = r'/etc/systemd/system/owamp-server.d/20-override.conf'
twamp_config_dir = '/etc/twamp-server'
twamp_config_file = f'{twamp_config_dir}/twamp-server.conf'
systemd_override_twamp = r'/etc/systemd/system/twamp-server.d/20-override.conf'
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
base = ['service', 'sla']
if not conf.exists(base):
return None
sla = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
# 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)
sla = dict_merge(default_values, sla)
# Ignore default XML values if config doesn't exists
# Delete key from dict
if not conf.exists(base + ['owamp-server']):
del sla['owamp_server']
if not conf.exists(base + ['twamp-server']):
del sla['twamp_server']
return sla
def verify(sla):
if not sla:
return None
def generate(sla):
if not sla:
return None
render(owamp_config_file, 'sla/owamp-server.conf.j2', sla)
render(systemd_override_owamp, 'sla/owamp-override.conf.j2', sla)
render(twamp_config_file, 'sla/twamp-server.conf.j2', sla)
render(systemd_override_twamp, 'sla/twamp-override.conf.j2', sla)
return None
def apply(sla):
owamp_service = 'owamp-server.service'
twamp_service = 'twamp-server.service'
call('systemctl daemon-reload')
if not sla or 'owamp_server' not in sla:
call(f'systemctl stop {owamp_service}')
if os.path.exists(owamp_config_file):
os.unlink(owamp_config_file)
if not sla or 'twamp_server' not in sla:
call(f'systemctl stop {twamp_service}')
if os.path.exists(twamp_config_file):
os.unlink(twamp_config_file)
if sla and 'owamp_server' in sla:
call(f'systemctl reload-or-restart {owamp_service}')
if sla and 'twamp_server' in sla:
call(f'systemctl reload-or-restart {twamp_service}')
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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