--- /dev/null
+# netdata python.d.plugin configuration for fail2ban
+#
+# This file is in YaML format. Generally the format is:
+#
+# name: value
+#
+# There are 2 sections:
+# - global variables
+# - one or more JOBS
+#
+# JOBS allow you to collect values from multiple sources.
+# Each source will have its own set of charts.
+#
+# JOB parameters have to be indented (using spaces only, example below).
+
+# ----------------------------------------------------------------------
+# Global Variables
+# These variables set the defaults for all JOBs, however each JOB
+# may define its own, overriding the defaults.
+
+# update_every sets the default data collection frequency.
+# If unset, the python.d.plugin default is used.
+# update_every: 1
+
+# priority controls the order of charts at the netdata dashboard.
+# Lower numbers move the charts towards the top of the page.
+# If unset, the default for python.d.plugin is used.
+# priority: 60000
+
+# retries sets the number of retries to be made in case of failures.
+# If unset, the default for python.d.plugin is used.
+# Attempts to restore the service are made once every update_every
+# and only if the module has collected values in the past.
+# retries: 5
+
+# ----------------------------------------------------------------------
+# JOBS (data collection sources)
+#
+# The default JOBS share the same *name*. JOBS with the same name
+# are mutually exclusive. Only one of them will be allowed running at
+# any time. This allows autodetection to try several alternatives and
+# pick the one that works.
+#
+# Any number of jobs is supported.
+#
+# All python.d.plugin JOBS (for all its modules) support a set of
+# predefined parameters. These are:
+#
+# job_name:
+# name: myname # the JOB's name as it will appear at the
+# # dashboard (by default is the job_name)
+# # JOBs sharing a name are mutually exclusive
+# update_every: 1 # the JOB's data collection frequency
+# priority: 60000 # the JOB's order on the dashboard
+# retries: 5 # the JOB's number of restoration attempts
+#
+# Additionally to the above, fail2ban also supports the following:
+#
+# log_path: 'path to fail2ban.log' # Default: '/var/log/fail2ban.log'
+# conf_path: 'path to jail.local/jail.conf' # Default: '/etc/fail2ban/jail.local'
+# exclude: 'jails you want to exclude from autodetection' # Default: '[]' empty list
+#------------------------------------------------------------------------------------------------------------------
+# IMPORTANT Information
+#
+# fail2ban.log file MUST BE readable by netdata.
+# A good idea is to do this by adding the
+# # create 0640 root netdata
+# to fail2ban conf at logrotate.d
+#
+# ------------------------------------------------------------------------------------------------------------------
+# AUTO-DETECTION JOBS
+# only one of them will run (they have the same name)
+
+#local:
+# log_path: '/var/log/fail2ban.log'
+# conf_path: '/etc/fail2ban/jail.local'
+# exclude: 'dropbear apache'
--- /dev/null
+# -*- coding: utf-8 -*-
+# Description: fail2ban log netdata python.d module
+# Author: l2isbad
+
+from base import LogService
+from re import compile
+try:
+ from itertools import filterfalse
+except ImportError:
+ from itertools import ifilterfalse as filterfalse
+from os import access as is_accessible, R_OK
+
+priority = 60000
+retries = 60
+regex = compile(r'([A-Za-z-]+\]) enabled = ([a-z]+)')
+
+ORDER = ['jails_group']
+
+
+class Service(LogService):
+ def __init__(self, configuration=None, name=None):
+ LogService.__init__(self, configuration=configuration, name=name)
+ self.order = ORDER
+ self.log_path = self.configuration.get('log_path', '/var/log/fail2ban.log')
+ self.conf_path = self.configuration.get('conf_path', '/etc/fail2ban/jail.local')
+ self.default_jails = ['ssh']
+ try:
+ self.exclude = self.configuration['exclude'].split()
+ except (KeyError, AttributeError):
+ self.exclude = []
+
+
+ def _get_data(self):
+ """
+ Parse new log lines
+ :return: dict
+ """
+
+ # If _get_raw_data returns empty list (no new lines in log file) we will send to Netdata this
+ self.data = {jail: 0 for jail in self.jails_list}
+
+ try:
+ raw = self._get_raw_data()
+ if raw is None:
+ return None
+ elif not raw:
+ return self.data
+ except (ValueError, AttributeError):
+ return None
+
+ # Fail2ban logs looks like
+ # 2016-12-25 12:36:04,711 fail2ban.actions[2455]: WARNING [ssh] Ban 178.156.32.231
+ self.data = dict(
+ zip(
+ self.jails_list,
+ [len(list(filterfalse(lambda line: (jail + '] Ban') not in line, raw))) for jail in self.jails_list]
+ ))
+
+ return self.data
+
+ def check(self):
+
+ # Check "log_path" is accessible.
+ # If NOT STOP plugin
+ if not is_accessible(self.log_path, R_OK):
+ self.error('Cannot access file %s' % (self.log_path))
+ return False
+
+ # Check "conf_path" is accessible.
+ # If "conf_path" is accesible try to parse it to find enabled jails
+ if is_accessible(self.conf_path, R_OK):
+ with open(self.conf_path, 'rt') as jails_conf:
+ jails_list = regex.findall(' '.join(jails_conf.read().split()))
+ self.jails_list = [jail[:-1] for jail, status in jails_list if status == 'true']
+ else:
+ self.jails_list = []
+ self.error('Cannot access jail.local file %s.' % (self.conf_path))
+
+ # If for some reason parse failed we still can START with default jails_list.
+ self.jails_list = [jail for jail in self.jails_list if jail not in self.exclude]\
+ if self.jails_list else self.default_jails
+ self.create_dimensions()
+ self.info('Plugin succefully started. Jails: %s' % (self.jails_list))
+ return True
+
+ def create_dimensions(self):
+ self.definitions = {'jails_group':
+ {'options':
+ [None, "Jails ban statistics", "bans/s", 'Jails', 'jail.ban', 'line'], 'lines': []}}
+ for jail in self.jails_list:
+ self.definitions['jails_group']['lines'].append([jail, jail, 'absolute'])
projects / netdata.git / commitdiff