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#!/usr/bin/env python3
#
# Copyright (C) 2018 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 sys
import os
import socket
import jinja2
from vyos.config import Config
from vyos import ConfigError
config_file = r'/etc/salt/minion'
# Please be careful if you edit the template.
config_tmpl = """
### Autogenerated by salt-minion.py ###
##### Primary configuration settings #####
##########################################
# Set the location of the salt master server, if the master server cannot be
# resolved, then the minion will fail to start.
master: {{ master }}
# The user to run salt
user: {{ user }}
# The directory to store the pki information in
pki_dir: /config/salt/pki/minion
# Explicitly declare the id for this minion to use, if left commented the id
# will be the hostname as returned by the python call: socket.getfqdn()
# Since salt uses detached ids it is possible to run multiple minions on the
# same machine but with different ids, this can be useful for salt compute
# clusters.
id: {{ id }}
"""
default_config_data = {
'master' : 'salt'
'user': 'vyos',
'id': socket.gethostname()
}
def get_config():
salt = default_config_data
conf = Config()
if not conf.exists('service salt-minion'):
return None
else:
conf.set_level('service salt-minion')
if conf.exists('master'):
master = conf.return_values('master')
salt['master'] = master
if conf.exists('ID'):
id = conf.return_values('ID')
salt['id'] = id
if conf.exists('user'):
user = conf.return_values('user')
salt['user'] = user
return salt
def generate(salt):
if salt is None:
return None
tmpl = jinja2.Template(config_tmpl)
config_text = tmpl.render(salt)
with open(config_file, 'w') as f:
f.write(config_text)
return None
def apply(salt):
if salt is not None:
os.system("sudo systemctl restart salt-minion")
else:
# Salt access is removed in the commit
os.system("sudo systemctl stop salt-minion")
os.unlink(config_file)
return None
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
sys.exit(1)
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