Current File : //proc/self/root/proc/thread-self/root/lib/python2.7/site-packages/salt/beacons/journald.py
# -*- coding: utf-8 -*-
'''
A simple beacon to watch journald for specific entries
'''
# Import Python libs
from __future__ import absolute_import, unicode_literals
# Import salt libs
import salt.utils.data
import salt.ext.six
from salt.ext.six.moves import map
# Import third party libs
try:
import systemd.journal
HAS_SYSTEMD = True
except ImportError:
HAS_SYSTEMD = False
import logging
log = logging.getLogger(__name__)
__virtualname__ = 'journald'
def __virtual__():
if HAS_SYSTEMD:
return __virtualname__
return False
def _get_journal():
'''
Return the active running journal object
'''
if 'systemd.journald' in __context__:
return __context__['systemd.journald']
__context__['systemd.journald'] = systemd.journal.Reader()
# get to the end of the journal
__context__['systemd.journald'].seek_tail()
__context__['systemd.journald'].get_previous()
return __context__['systemd.journald']
def validate(config):
'''
Validate the beacon configuration
'''
# Configuration for journald beacon should be a list of dicts
if not isinstance(config, list):
return (False, 'Configuration for journald beacon must be a list.')
else:
_config = {}
list(map(_config.update, config))
for name in _config.get('services', {}):
if not isinstance(_config['services'][name], dict):
return False, ('Services configuration for journald beacon '
'must be a list of dictionaries.')
return True, 'Valid beacon configuration'
def beacon(config):
'''
The journald beacon allows for the systemd journal to be parsed and linked
objects to be turned into events.
This beacons config will return all sshd jornal entries
.. code-block:: yaml
beacons:
journald:
- services:
sshd:
SYSLOG_IDENTIFIER: sshd
PRIORITY: 6
'''
ret = []
journal = _get_journal()
_config = {}
list(map(_config.update, config))
while True:
cur = journal.get_next()
if not cur:
break
for name in _config.get('services', {}):
n_flag = 0
for key in _config['services'][name]:
if isinstance(key, salt.ext.six.string_types):
key = salt.utils.data.decode(key)
if key in cur:
if _config['services'][name][key] == cur[key]:
n_flag += 1
if n_flag == len(_config['services'][name]):
# Match!
sub = salt.utils.data.simple_types_filter(cur)
sub.update({'tag': name})
ret.append(sub)
return ret
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