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check_synology.py
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check_synology.py
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#!/usr/bin/env python
import argparse
import sys
import math
import easysnmp
import re
AUTHOR = "Frederic Werner"
VERSION = 0.1
parser = argparse.ArgumentParser()
parser.add_argument("hostname", help="the hostname", type=str)
parser.add_argument("username", help="the snmp user name", type=str)
parser.add_argument("authkey", help="the auth key", type=str)
parser.add_argument("privkey", help="the priv key", type=str)
parser.add_argument("mode", help="the mode", type=str, choices=["load", "memory", "disk", "storage", "update", "status"])
parser.add_argument("-w", help="warning value for selected mode", type=int)
parser.add_argument("-c", help="critical value for selected mode", type=int)
args = parser.parse_args()
hostname = args.hostname
user_name = args.username
auth_key = args.authkey
priv_key = args.privkey
mode = args.mode
warning = args.w
critical = args.c
state = 'OK'
try:
session = easysnmp.Session(
hostname=hostname,
version=3,
security_level="auth_with_privacy",
security_username=user_name,
auth_password=auth_key,
auth_protocol="MD5",
privacy_password=priv_key,
privacy_protocol="AES128")
except easysnmp.EasySNMPError as e:
print(e)
exit(-1)
def snmpget(oid):
try:
res = session.get(oid)
return res.value
except easysnmp.EasySNMPError as e:
print(e)
# Walk the given OID and return all child OIDs as a list of tuples of OID and value
def snmpwalk(oid):
res = []
try:
res = session.walk(oid)
except easysnmp.EasySNMPError as e:
print(e)
return res
def exitCode():
if state == 'OK':
sys.exit(0)
if state == 'WARNING':
sys.exit(1)
if state == 'CRITICAL':
sys.exit(2)
if state == 'UNKNOWN':
sys.exit(3)
if mode == 'load':
load1 = str(float(snmpget('1.3.6.1.4.1.2021.10.1.5.1'))/100)
load5 = str(float(snmpget('1.3.6.1.4.1.2021.10.1.5.2'))/100)
load15 = str(float(snmpget('1.3.6.1.4.1.2021.10.1.5.3'))/100)
if warning and warning < int(math.ceil(float(load1))):
state = 'WARNING'
if critical and critical < int(math.ceil(float(load1))):
state = 'CRITICAL'
print (state + ' - load average: %s, %s, %s' % (load1, load5, load15), '| load1=%sc' % load1, 'load5=%sc' % load5, 'load15=%sc' % load15)
exitCode()
if mode == 'memory':
memory_total = float(snmpget('1.3.6.1.4.1.2021.4.5.0'))
memory_unused = float(snmpget('1.3.6.1.4.1.2021.4.6.0'))
memory_available = memory_unused + (snmpget('1.3.6.1.4.1.2021.4.15.0'))
memory_percent = 100 / memory_total * memory_available
if warning and warning > int(memory_percent):
state = 'WARNING'
if critical and critical > int(memory_percent):
state = 'CRITICAL'
print (state + ' - {:0.1f}% '.format(memory_percent) + 'available ({0:0.1f} MB out of {1:0.1f} MB)'.format((memory_available / 1024), (memory_total / 1024)), '|memory_total=%dc' % memory_total , '|memory_available=%dc' % memory_available , 'memory_unused=%dc' % memory_unused , 'memory_percent=%d' % memory_percent + '%')
exitCode()
if mode == 'disk':
maxDisk = 0
output = ''
perfdata = '|'
for item in snmpwalk('1.3.6.1.4.1.6574.2.1.1.2'):
i = item.oid.split('.')[-1]
disk_name = item.value
disk_status_nr = snmpget('1.3.6.1.4.1.6574.2.1.1.5.' + str(i))
disk_temp = snmpget('1.3.6.1.4.1.6574.2.1.1.6.' + str(i))
status_translation = {
'1': "Normal",
'2': "Initialized",
'3': "NotInitialized",
'4': "SystemPartitionFailed",
'5': "Crashed"
}
disk_status = status_translation.get(disk_status_nr)
disk_name = disk_name.replace(" ", "")
if warning and warning < int(disk_temp):
if state != 'CRITICAL':
state = 'WARNING'
if critical and critical < int(disk_temp) or int(disk_status_nr) == (4 or 5):
state = 'CRITICAL'
output += ' - ' + disk_name + ': Status: ' + disk_status + ', Temperature: ' + disk_temp + ' C'
perfdata += 'temperature' + disk_name + '=' + disk_temp + 'c '
print ('%s%s %s' % (state, output, perfdata))
exitCode()
if mode == 'storage':
output = ''
perfdata = '|'
for item in snmpwalk('1.3.6.1.2.1.25.2.3.1.3'):
i = item.oid.split('.')[-1]
storage_name = item.value
if re.match("/volume(?!.+/@docker.*)", storage_name) :
allocation_units = snmpget('1.3.6.1.2.1.25.2.3.1.4.' + str(i))
size = snmpget('1.3.6.1.2.1.25.2.3.1.5.' + str(i))
used = snmpget('1.3.6.1.2.1.25.2.3.1.6.' + str(i))
storage_size = int((int(allocation_units) * int(size)) / 1000000000)
storage_used = int((int(used) * int(allocation_units)) / 1000000000)
storage_free = int(storage_size - storage_used)
storage_used_percent = int(storage_used * 100 / storage_size)
if warning and warning < int(storage_used_percent):
if state != 'CRITICAL':
state = 'WARNING'
if critical and critical < int(storage_used_percent):
state = 'CRITICAL'
output += ' - free space: ' + storage_name + ' ' + str(storage_free) + ' GB (' + str(storage_used) + ' GB von ' + str(storage_size) + ' GB belegt, ' + str(storage_used_percent) + '%)'
perfdata += storage_name + '=' + str(storage_used) + 'c '
print ('%s%s %s' % (state, output, perfdata))
exitCode()
if mode == 'update':
update_status_nr = snmpget('1.3.6.1.4.1.6574.1.5.4.0')
update_dsm_verison = snmpget('1.3.6.1.4.1.6574.1.5.3.0')
status_translation = {
'1': "Available",
'2': "Unavailable",
'3': "Connecting",
'4': "Disconnected",
'5': "Others"
}
if warning and 1 == int(update_status_nr):
state = 'WARNING'
if critical and [4|5] == int(update_status_nr):
state = 'CRITICAL'
update_status = status_translation.get(update_status_nr)
print (state + ' - DSM Version: %s, DSM Update: %s' % (update_dsm_verison, update_status), '| DSMupdate=%sc' % update_status_nr)
exitCode()
if mode == 'status':
status_model = snmpget('1.3.6.1.4.1.6574.1.5.1.0')
status_serial = snmpget('1.3.6.1.4.1.6574.1.5.2.0')
status_temperature = snmpget('1.3.6.1.4.1.6574.1.2.0')
status_system_nr = snmpget('1.3.6.1.4.1.6574.1.1.0')
status_system_fan_nr = snmpget('1.3.6.1.4.1.6574.1.4.1.0')
status_cpu_fan_nr = snmpget('1.3.6.1.4.1.6574.1.4.2.0')
status_power_nr = snmpget('1.3.6.1.4.1.6574.1.3.0')
status_translation = {
'1': "Normal",
'2': "Failed"
}
status_system = status_translation.get(status_system_nr)
status_system_fan = status_translation.get(status_system_fan_nr)
status_cpu_fan = status_translation.get(status_cpu_fan_nr)
status_power = status_translation.get(status_power_nr)
if warning and warning < int(status_temperature):
state = 'WARNING'
if critical and critical < int(status_temperature):
state = 'CRITICAL'
print (state + ' - Model: %s, S/N: %s, System Temperature: %s C, System Status: %s, System Fan: %s, CPU Fan: %s, Powersupply : %s' % (status_model, status_serial, status_temperature, status_system, status_system_fan, status_cpu_fan, status_power) + ' | system_temp=%sc' % status_temperature)
exitCode()