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bind-stats.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# __author__ = 'https://github.com/Pesticles/Zabbix-Bind9-Statistics-Collection'
import argparse
import json
import os
import sys
import time
import re
JSONFILE = '/tmp/bindstats.json'
CACHELIFE = 60
parser = argparse.ArgumentParser()
parser.add_argument("action", help="discoverzones | counter | zonecounter | zonemaintenancecounter | resolvercounter "
"| socketcounter | incounter | outcounter | json")
parser.add_argument("-z", help="zone")
parser.add_argument("-c", help="counter name")
parser.add_argument("-p", help="bind stats port")
args = parser.parse_args()
# Configurable port
port = 8653
if args.p:
port = args.p
# Read from the cache if it exists and is less than a minute old, so we don't hit Bind directly too often.
if os.path.exists(JSONFILE) and time.time() - os.path.getmtime(JSONFILE) <= CACHELIFE:
with open(JSONFILE) as f:
j = json.load(f)
else:
import http.client
conn = http.client.HTTPConnection('localhost:{0}'.format(port))
conn.request('GET', '/')
resp = conn.getresponse()
if not resp.status == 200:
print("HTTP GET Failed")
sys.exit(1)
content = resp.read()
conn.close()
import xml.etree.ElementTree as ElementTree
root = ElementTree.fromstring(content)
# first, we need to see what statistics version we are. 2.x or 3.x
# if root tag is isc = we have probably stats version 2, if it stats with statisics we have version 3 or newer
if root.tag == 'isc':
# get statistics version from isc/bind/statistics attrib
version = root.find('./bind/statistics').attrib['version']
elif root.tag == 'statistics':
version = root.attrib['version']
else:
print("Unknown root tag: {}".format(root.ag), file=sys.stderr)
print("ZBX_NOTSUPPORTED")
# check the statistics version here
v = re.match('^(\d{1})\.', version)
version = int(v.group(1))
if version < 0 or version > 3:
print("Unsupported bind statistics version: {}".format(root.attrib), file=sys.stderr)
print("ZBX_NOTSUPPORTED")
# Build the JSON cache
j = {
'zones': {},
'counter': {},
'zonemaintenancecounter': {},
'resolvercounter': {},
'socketcounter': {},
'incounter': {},
'outcounter': {},
'cache': {},
'memory': {}
}
# this is for version 2
if version == 2:
for view in root.iterfind('./bind/statistics/views/view'):
if view.findtext('./name') in ('_default',):
for zone in view.iterfind('./zones/zone'):
if zone.find('./counters') is not None:
counters = {}
for counter in zone.iterfind('./counters/*'):
counters[counter.tag] = counter.text
j['zones'][zone.findtext('./name')] = counters
for stat in root.iterfind('./bind/statistics/server/nsstat'):
j['counter'][stat.findtext('./name')] = stat.findtext('./counter')
for stat in root.iterfind('./bind/statistics/server/zonestat'):
j['zonemaintenancecounter'][stat.findtext('./name')] = stat.findtext('./counter')
for view in root.iterfind('./bind/statistics/views/view'):
if view.findtext('./name') in ('_default',):
for stat in view.iterfind('./resstat'):
j['resolvercounter'][stat.findtext('./name')] = stat.findtext('./counter')
for stat in root.iterfind('./bind/statistics/server/sockstat'):
j['socketcounter'][stat.findtext('./name')] = stat.findtext('./counter')
for stat in root.iterfind('./bind/statistics/server/queries-in/rdtype'):
j['incounter'][stat.findtext('./name')] = stat.findtext('./counter')
for stat in root.iterfind('./bind/statistics/views/view/rdtype'):
j['outcounter'][stat.findtext('./name')] = stat.findtext('./counter')
# Memory
for child in root.iterfind('./bind/statistics/memory/summary/*'):
j['memory'][child.tag] = child.text
# Cache for local
for child in root.iterfind('./bind/statistics/views/view/cache'):
if child.attrib['name'] == 'localhost_resolver':
for stat in child.iterfind('./rrset'):
j['cache'][stat.findtext('./name')] = stat.findtext('./counter')
# this is for newer version 3
if version == 3:
for child in root.iterfind('./server/counters'):
# V2 ./bind/statistics/server/nsstat
if child.attrib['type'] == 'nsstat':
for stat in child.iterfind('./counter'):
j['counter'][stat.attrib['name']] = stat.text
# V2 ./bind/statistics/server/sockstat
if child.attrib['type'] == 'sockstat':
for stat in child.iterfind('./counter'):
j['socketcounter'][stat.attrib['name']] = stat.text
# V2 ./bind/statistics/server/zonestat
if child.attrib['type'] == 'zonestat':
for stat in child.iterfind('./counter'):
j['zonemaintenancecounter'][stat.attrib['name']] = stat.text
# V2 ./bind/statistics/server/queries-in/rdtype
if child.attrib['type'] == 'qtype':
for stat in child.iterfind('./counter'):
j['incounter'][stat.attrib['name']] = stat.text
# they are only for block _default
for child in root.iterfind('./views/view/counters'):
# V2 ./bind/statistics/views/view/rdtype
if child.attrib['type'] == 'resqtype':
for stat in child.iterfind('./counter'):
j['outcounter'][stat.attrib['name']] = stat.text
# V2 ./bind/statistics/views/view => _default name only
if child.attrib['type'] == 'resstats':
for stat in child.iterfind('./counter'):
j['resolvercounter'][stat.attrib['name']] = stat.text
# V2: no (only in memory detail stats)
if child.attrib['type'] == 'cachestats':
for stat in child.iterfind('./counter'):
j['cache'][stat.attrib['name']] = stat.text
# V2 has @name = localhost_resolver, interal, external
for child in root.iterfind('./views/view/cache'):
if (child.attrib['name'] == '_default'):
for stat in child.iterfind('./rrset'):
j['cache'][stat.findtext('./name')] = stat.findtext('./counter')
# for sets stating with !, we replace that with an _ (! is not allowed in zabbix)
if re.match('^!', stat.findtext('./name')):
j['cache'][stat.findtext('./name').replace('!', '_')] = stat.findtext('./counter')
# for all the Zone stats only
for child in root.iterfind('./views/view'):
# only for default
if (child.attrib['name'] == '_default'):
# V2 ./bind/statistics/views/view -> ./zones/zone => _default name only
for zone in child.iterfind('./zones/zone'):
counters = {}
for stat in zone.iterfind('./counters'):
if stat.attrib['type'] == 'rcode' or stat.attrib['type'] == 'qtype':
for counter in stat.iterfind('./counter'):
counters[counter.attrib['name']] = counter.text
j['zones'][zone.attrib['name']] = counters
# V2 ./bind/statistics/memory/summary/*
for child in root.iterfind('./memory/summary/*'):
j['memory'][child.tag] = child.text
# write to cache is the same in both version
with open(JSONFILE, 'w') as f:
json.dump(j, f)
if args.action == 'discoverzones':
d = {'data': [{'{#ZONE}': zone} for zone in j['zones'].keys() if len(j['zones'][zone])>0]}
print(json.dumps(d))
sys.exit(0)
elif args.action == 'zonecounter':
if not (args.z and args.c):
print("Missing argument", file=sys.stderr)
print("ZBX_NOTSUPPORTED")
sys.exit(1)
if args.z in j['zones'] and args.c in j['zones'][args.z]:
print(j['zones'][args.z][args.c])
sys.exit(0)
else:
print("ZBX_NOTSUPPORTED")
sys.exit(1)
elif args.action == 'jsonzone':
if not args.z:
print("Missing argument", file=sys.stderr)
print("ZBX_NOTSUPPORTED")
sys.exit(1)
if args.z in j['zones']:
print(json.dumps(j['zones'][args.z]))
sys.exit(0)
else:
print("ZBX_NOTSUPPORTED")
sys.exit(1)
elif args.action == 'json':
del j['zones']
print(json.dumps(j))
#print(json.dumps(j, indent=4, separators=(',', ': ') ) )
sys.exit(0)
else:
if not args.c:
print("Missing argument", file=sys.stderr)
print("ZBX_NOTSUPPORTED")
sys.exit(1)
if args.c in j[args.action]:
print(j[args.action][args.c])
sys.exit(0)
else:
print("ZBX_NOTSUPPORTED")
sys.exit(1)