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-rwxr-xr-xsrc/conf_mode/salt-minion.py203
1 files changed, 203 insertions, 0 deletions
diff --git a/src/conf_mode/salt-minion.py b/src/conf_mode/salt-minion.py
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+++ b/src/conf_mode/salt-minion.py
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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 pwd
+import socket
+import urllib3
+
+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 #####
+##########################################
+
+# The hash_type is the hash to use when discovering the hash of a file on
+# the master server. The default is sha256, but md5, sha1, sha224, sha384 and
+# sha512 are also supported.
+#
+# WARNING: While md5 and sha1 are also supported, do not use them due to the
+# high chance of possible collisions and thus security breach.
+#
+# Prior to changing this value, the master should be stopped and all Salt
+# caches should be cleared.
+hash_type: {{ hash_type }}
+
+##### Logging settings #####
+##########################################
+# The location of the minion log file
+# The minion log can be sent to a regular file, local path name, or network
+# location. Remote logging works best when configured to use rsyslogd(8) (e.g.:
+# ``file:///dev/log``), with rsyslogd(8) configured for network logging. The URI
+# format is: <file|udp|tcp>://<host|socketpath>:<port-if-required>/<log-facility>
+#log_file: /var/log/salt/minion
+#log_file: file:///dev/log
+#log_file: udp://loghost:10514
+#
+log_file: {{ log_file }}
+
+# The level of messages to send to the console.
+# One of 'garbage', 'trace', 'debug', info', 'warning', 'error', 'critical'.
+#
+# The following log levels are considered INSECURE and may log sensitive data:
+# ['garbage', 'trace', 'debug']
+#
+# Default: 'warning'
+log_level: {{ log_level }}
+
+# Set the location of the salt master server, if the master server cannot be
+# resolved, then the minion will fail to start.
+master:
+{% for host in master -%}
+- {{ host }}
+{% endfor %}
+
+# 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: {{ salt_id }}
+
+
+# The number of minutes between mine updates.
+mine_interval: {{ mine_interval }}
+
+verify_master_pubkey_sign: {{ verify_master_pubkey_sign }}
+"""
+
+default_config_data = {
+ 'hash_type': 'sha256',
+ 'log_file': '/var/log/salt/minion',
+ 'log_level': 'warning',
+ 'master' : 'salt',
+ 'user': 'minion',
+ 'salt_id': socket.gethostname(),
+ 'mine_interval': '60',
+ 'verify_master_pubkey_sign': 'false'
+}
+
+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('hash_type'):
+ salt['hash_type'] = conf.return_value('hash_type')
+
+ if conf.exists('log_file'):
+ salt['log_file'] = conf.return_value('log_file')
+
+ if conf.exists('log_level'):
+ salt['log_level'] = conf.return_value('log_level')
+
+ if conf.exists('master'):
+ master = conf.return_values('master')
+ salt['master'] = master
+
+ if conf.exists('id'):
+ salt['salt_id'] = conf.return_value('id')
+
+ if conf.exists('user'):
+ salt['user'] = conf.return_value('user')
+
+ if conf.exists('mine_interval'):
+ salt['mine_interval'] = conf.return_value('mine_interval')
+
+ salt['master-key'] = None
+ if conf.exists('master-key'):
+ salt['master-key'] = conf.return_value('master-key')
+ salt['verify_master_pubkey_sign'] = 'true'
+
+ return salt
+
+def generate(salt):
+ paths = ['/etc/salt/','/var/run/salt','/opt/vyatta/etc/config/salt/']
+ directory = '/opt/vyatta/etc/config/salt/pki/minion'
+ uid = pwd.getpwnam(salt['user']).pw_uid
+ http = urllib3.PoolManager()
+
+ if salt is None:
+ return None
+
+ if not os.path.exists(directory):
+ os.makedirs(directory)
+
+ tmpl = jinja2.Template(config_tmpl)
+ config_text = tmpl.render(salt)
+ with open(config_file, 'w') as f:
+ f.write(config_text)
+ path = "/etc/salt/"
+ for path in paths:
+ for root, dirs, files in os.walk(path):
+ for usgr in dirs:
+ os.chown(os.path.join(root, usgr), uid, 100)
+ for usgr in files:
+ os.chown(os.path.join(root, usgr), uid, 100)
+
+ if not os.path.exists('/opt/vyatta/etc/config/salt/pki/minion/master_sign.pub'):
+ if not salt['master-key'] is None:
+ r = http.request('GET', salt['master-key'], preload_content=False)
+
+ with open('/opt/vyatta/etc/config/salt/pki/minion/master_sign.pub', 'wb') as out:
+ while True:
+ data = r.read(1024)
+ if not data:
+ break
+ out.write(data)
+
+ r.release_conn()
+
+ 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()
+ generate(c)
+ apply(c)
+ except ConfigError as e:
+ print(e)
+ sys.exit(1)