#!/usr/bin/python # -*- coding: utf-8 -*- # Copyright (C) 2014 Johann Schmitz # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU Library General Public License as published by # the Free Software Foundation; version 2 only # # 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 Library General Public License for more details. # # You should have received a copy of the GNU Library General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # """ =head1 NAME snmp__synology_ - Health and system status monitoring plugin for Synology NAS systems =head1 CONFIGURATION Make sure your Synology device is accessible via SNMP (e.g. via snmpwalk) and the munin-node has been configured correctly. =head1 MAGIC MARKERS #%# family=snmpauto #%# capabilities=snmpconf =head1 VERSION 0.0.1 =head1 BUGS Open a ticket at https://github.com/ercpe/contrib if you find one. =head1 AUTHOR Johann Schmitz =head1 LICENSE GPLv2 =cut """ import re import sys import os import logging from pysnmp.entity.rfc3413.oneliner import cmdgen disktable_id = '1.3.6.1.4.1.6574.2.1.1.2' disktable_model = '1.3.6.1.4.1.6574.2.1.1.3' disktable_temp = '1.3.6.1.4.1.6574.2.1.1.6' sys_temperature = '1.3.6.1.4.1.6574.1.2.0' class SynologySNMPClient(object): def __init__(self, host, port, community): self.hostname = host self.transport = cmdgen.UdpTransportTarget((host, int(port))) self.auth = cmdgen.CommunityData('test-agent', community) self.gen = cmdgen.CommandGenerator() def _get_disks(self): disk_table = '1.3.6.1.4.1.6574.2.1' errorIndication, errorStatus, errorIndex, varBindTable = self.gen.bulkCmd( self.auth, self.transport, 0, 24, disk_table) if errorIndication: logging.error("SNMP bulkCmd for devices failed: %s, %s, %s" % (errorIndication, errorStatus, errorIndex)) return devices = {} for row in varBindTable: for oid, value in row: oid = str(oid) if not oid.startswith(disk_table): continue disk_id = oid[oid.rindex('.')+1:] values = devices.get(disk_id, [None, None, None]) if oid.startswith(disktable_id): values[0] = str(value).strip() if oid.startswith(disktable_model): values[1] = str(value).strip() if oid.startswith(disktable_temp): values[2] = int(value) devices[disk_id] = values for x in sorted(devices.keys()): yield tuple([x] + devices[x]) def _get_sys_temperature(self): errorIndication, errorStatus, errorIndex, varBindTable = self.gen.getCmd( self.auth, self.transport, sys_temperature) if errorIndication: logging.error("SNMP getCmd for %s failed: %s, %s, %s" % (sys_temperature, errorIndication, errorStatus, errorIndex)) return None return int(varBindTable[0][1]) def print_config(self): print """multigraph synology_hdd_temperatures host_name {hostname} graph_title HDD temperatures on {hostname} graph_vlabel Temperature in °C graph_args --base 1000 graph_category system graph_info HDD temperatures on {hostname}""".format(hostname=self.hostname) for id, name, model, temp in self._get_disks(): print """disk{disk_id}.info Temperature of {name} ({model}) disk{disk_id}.label {name} ({model}) disk{disk_id}.type GAUGE disk{disk_id}.min 0""".format(disk_id=id, name=name, model=model) print """multigraph synology_sys_temperature host_name {hostname} graph_title System temperatures of {hostname} graph_vlabel Temperature in °C graph_args --base 1000 graph_category system graph_info System temperature of {hostname} sys_temp.info System temperature sys_temp.label Temperature sys_temp.type GAUGE sys_temp.min 0 """.format(hostname=self.hostname) def execute(self): print """multigraph synology_hdd_temperatures""" for id, name, model, temp in self._get_disks(): print """disk{disk_id}.value {temp}""".format(disk_id=id, temp=temp) print """multigraph synology_sys_temperature""" print "sys_temp.value {temp}".format(temp=self._get_sys_temperature()) host = None port = os.getenv('port', 161) community = os.getenv('community', None) debug = bool(os.getenv('MUNIN_DEBUG', os.getenv('DEBUG', 0))) if debug: logging.basicConfig(level=logging.DEBUG, format='%(asctime)s %(levelname)-7s %(message)s') try: match = re.search("^(?:|.*\/)snmp_([^_]+)_synology$", sys.argv[0]) host = match.group(1) match = re.search("^([^:]+):(\d+)$", host) if match is not None: host = match.group(1) port = match.group(2) except Exception as ex: logging.error("Caught exception: %s" % ex) if "snmpconf" in sys.argv[1:]: print "require 1.3.6.1.4.1.6574.2.1.1" sys.exit(0) else: if not (host and port and community): print "# Bad configuration. Cannot run with Host=%s, port=%s and community=%s" % (host, port, community) sys.exit(1) c = SynologySNMPClient(host, port, community) if "config" in sys.argv[1:]: c.print_config() else: c.execute()