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contrib-munin/plugins/synology/snmp__synology

189 lines
5.1 KiB
Python
Executable File

#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2014 Johann Schmitz <johann@j-schmitz.net>
#
# 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 <johann@j-schmitz.net>
=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 sensors
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 sensors
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()