1<?php
2
3// Polls powerdns statistics from script via SNMP
4
5use LibreNMS\Exceptions\JsonAppException;
6use LibreNMS\Exceptions\JsonAppParsingFailedException;
7use LibreNMS\RRD\RrdDefinition;
8
9$name = 'powerdns';
10$app_id = $app['app_id'];
11$powerdns = [];
12echo " $name";
13
14// unused metrics:
15// deferred-packetcache-inserts, deferred-packetcache-lookup, dnsupdate-answers, dnsupdate-changes, dnsupdate-queries, dnsupdate-refused, incoming-notifications
16// query-cache-size, overload-drops, rd-queries, recursion-unanswered, security-status, signatures, tcp-answers-bytes, tcp4-answers, tcp4-answers-bytes, tcp4-queries
17// tcp6-answers, tcp6-answers-bytes, tcp6-queries, udp-answers-bytes, udp-do-queries, udp4-answers-bytes, udp6-answers-bytes, fd-usage, key-cache-size
18// meta-cache-size, real-memory-usage, signature-cache-size, sys-msec, udp-in-errors, udp-noport-errors, udp-recvbuf-errors, udp-sndbuf-errors, uptime, user-msec
19
20$powerdns_metrics = [
21    'corruptPackets' => 'corrupt-packets',
22    'def_cacheInserts' => 'deferred-cache-inserts',
23    'def_cacheLookup' => 'deferred-cache-lookup',
24    'latency' => 'latency',
25    'pc_hit' => 'packetcache-hit',
26    'pc_miss' => 'packetcache-miss',
27    'pc_size' => 'packetcache-size',
28    'qsize' => 'qsize-q',
29    'qc_hit' => 'query-cache-hit',
30    'qc_miss' => 'query-cache-miss',
31    'rec_answers' => 'recursing-answers',
32    'rec_questions' => 'recursing-questions',
33    'servfailPackets' => 'servfail-packets',
34    'q_tcpAnswers' => 'tcp-answers',
35    'q_tcpQueries' => 'tcp-queries',
36    'q_timedout' => 'timedout-packets',
37    'q_udpAnswers' => 'udp-answers',
38    'q_udpQueries' => 'udp-queries',
39    'q_udp4Answers' => 'udp4-answers',
40    'q_udp4Queries' => 'udp4-queries',
41    'q_udp6Answers' => 'udp6-answers',
42    'q_udp6Queries' => 'udp6-queries',
43];
44
45if (isset($agent_data) && isset($agent_data['app'][$name])) {
46    $legacy = $agent_data['app'][$name];
47} else {
48    try {
49        $powerdns = json_app_get($device, $name)['data'];
50    } catch (JsonAppParsingFailedException $e) {
51        $legacy = $e->getOutput();
52    } catch (JsonAppException $e) {
53        echo PHP_EOL . $name . ':' . $e->getCode() . ':' . $e->getMessage() . PHP_EOL;
54        update_application($app, $e->getCode() . ':' . $e->getMessage(), []); // Set empty metrics and error message
55
56        return;
57    }
58}
59
60if (isset($legacy)) {
61    // Legacy script, build compatible array
62    [
63        $powerdns['corrupt-packets'],
64        $powerdns['deferred-cache-inserts'],
65        $powerdns['deferred-cache-lookup'],
66        $powerdns['latency'],
67        $powerdns['packetcache-hit'],
68        $powerdns['packetcache-miss'],
69        $powerdns['packetcache-size'],
70        $powerdns['qsize-q'],
71        $powerdns['query-cache-hit'],
72        $powerdns['query-cache-miss'],
73        $powerdns['recursing-answers'],
74        $powerdns['recursing-questions'],
75        $powerdns['servfail-packets'],
76        $powerdns['tcp-answers'],
77        $powerdns['tcp-queries'],
78        $powerdns['timedout-packets'],
79        $powerdns['udp-answers'],
80        $powerdns['udp-queries'],
81        $powerdns['udp4-answers'],
82        $powerdns['udp4-queries'],
83        $powerdns['udp6-answers'],
84        $powerdns['udp6-queries'],
85        ] = explode("\n", $legacy);
86}
87
88d_echo($powerdns);
89
90$rrd_name = ['app', $name, $app_id];
91$rrd_def = RrdDefinition::make();
92$fields = [];
93foreach ($powerdns_metrics as $ds => $metric) {
94    $rrd_def->addDataset($ds, 'DERIVE', 0, 125000000000);
95    $fields[$ds] = isset($powerdns[$metric]) ? $powerdns[$metric] : 'U';
96}
97
98$tags = compact('name', 'app_id', 'rrd_name', 'rrd_def');
99data_update($device, 'app', $tags, $fields);
100update_application($app, json_encode($powerdns), $fields);
101