LibreNMS/Alert/Transport/Alertmanager.php
<?php
/* Copyright (C) 2019 LibreNMS
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>. */
/**
* Alertmanager Transport
*
* @copyright 2019 LibreNMS
* @license GPL
*/
namespace LibreNMS\Alert\Transport;
use LibreNMS\Alert\Transport;
use LibreNMS\Enum\AlertState;
use LibreNMS\Exceptions\AlertTransportDeliveryException;
use LibreNMS\Util\Http;
use LibreNMS\Util\Url;
class Alertmanager extends Transport
{
protected string $name = 'Alert Manager';
public function deliverAlert(array $alert_data): bool
{
$url = $this->config['alertmanager-url'];
$username = $this->config['alertmanager-username'];
$password = $this->config['alertmanager-password'];
$alertmanager_status = $alert_data['state'] == AlertState::RECOVERED ? 'endsAt' : 'startsAt';
$alertmanager_msg = strip_tags($alert_data['msg']);
$data = [[
$alertmanager_status => date('c'),
'generatorURL' => Url::deviceUrl($alert_data['device_id']),
'annotations' => [
'summary' => $alert_data['name'],
'title' => $alert_data['title'],
'description' => $alertmanager_msg,
],
'labels' => [
'alertname' => $alert_data['name'],
'severity' => $alert_data['severity'],
'instance' => $alert_data['hostname'],
],
]];
$alertmanager_opts = $this->parseUserOptions($this->config['alertmanager-options']);
foreach ($alertmanager_opts as $label => $value) {
// To allow dynamic values
if (preg_match('/^extra_[A-Za-z0-9_]+$/', $label) && ! empty($alert_data['faults'][1][$value])) {
$data[0]['labels'][$label] = $alert_data['faults'][1][$value];
} else {
$data[0]['labels'][$label] = $value;
}
}
$client = Http::client()->timeout(5);
if ($username != '' && $password != '') {
$client->withBasicAuth($username, $password);
}
foreach (explode(',', $url) as $am) {
$post_url = ($am . '/api/v2/alerts');
$res = $client->post($post_url, $data);
if ($res->successful()) {
return true;
}
}
throw new AlertTransportDeliveryException($alert_data, $res->status(), $res->body(), $alertmanager_msg, $data);
}
public static function configTemplate(): array
{
return [
'config' => [
[
'title' => 'Alertmanager URL(s)',
'name' => 'alertmanager-url',
'descr' => 'Alertmanager Webhook URL(s). Can contain comma-separated URLs',
'type' => 'text',
],
[
'title' => 'Alertmanager Username',
'name' => 'alertmanager-username',
'descr' => 'Alertmanager Basic Username to authenticate to Alertmanager',
'type' => 'text',
],
[
'title' => 'Alertmanager Password',
'name' => 'alertmanager-password',
'descr' => 'Alertmanager Basic Password to authenticate to Alertmanager',
'type' => 'password',
],
[
'title' => 'Alertmanager Options',
'name' => 'alertmanager-options',
'descr' => 'Alertmanager Options. You can add any fixed string value or dynamic value from alert details (label name must start with extra_ and value must exists in alert details).',
'type' => 'textarea',
],
],
'validation' => [
'alertmanager-url' => 'required|string',
],
];
}
}