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<?php |
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namespace Hhxsv5\LaravelS\Components\Prometheus; |
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class PrometheusExporter |
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{ |
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const REDNER_MIME_TYPE = 'text/plain; version=0.0.4'; |
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private $config; |
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public function __construct(array $config) |
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{ |
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$this->config = $config; |
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} |
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public function getSystemLoadAvgMetrics() |
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{ |
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$load = sys_getloadavg(); |
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return [ |
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[ |
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'name' => 'system_load_average_1m', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $load[0], |
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], |
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[ |
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'name' => 'system_load_average_5m', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $load[1], |
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], |
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[ |
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'name' => 'system_load_average_15m', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $load[2], |
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], |
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]; |
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} |
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public function getSwooleMetrics() |
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{ |
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/**@var \Swoole\Http\Server $swoole */ |
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$swoole = app('swoole'); |
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$stats = $swoole->stats(); |
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// Get worker_num/task_worker_num from setting for the old Swoole. |
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$setting = $swoole->setting; |
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if (!isset($stats['worker_num'])) { |
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$stats['worker_num'] = $setting['worker_num']; |
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} |
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if (!isset($stats['task_worker_num'])) { |
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$stats['task_worker_num'] = isset($setting['task_worker_num']) ? $setting['task_worker_num'] : 0; |
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} |
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return [ |
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[ |
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'name' => 'swoole_cpu_num', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => swoole_cpu_num(), |
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], |
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[ |
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'name' => 'swoole_start_time', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $stats['start_time'], |
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], |
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[ |
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'name' => 'swoole_connection_num', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $stats['connection_num'], |
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], |
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[ |
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'name' => 'swoole_request_count', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $stats['request_count'], |
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], |
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[ |
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'name' => 'swoole_worker_num', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $stats['worker_num'], |
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], |
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[ |
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'name' => 'swoole_idle_worker_num', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => isset($stats['idle_worker_num']) ? $stats['idle_worker_num'] : 0, |
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], |
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[ |
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'name' => 'swoole_task_worker_num', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $stats['task_worker_num'], |
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], |
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[ |
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'name' => 'swoole_task_idle_worker_num', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => isset($stats['task_idle_worker_num']) ? $stats['task_idle_worker_num'] : 0, |
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], |
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[ |
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'name' => 'swoole_tasking_num', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $stats['tasking_num'], |
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], |
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[ |
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'name' => 'swoole_coroutine_num', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => isset($stats['coroutine_num']) ? $stats['coroutine_num'] : 0, |
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], |
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]; |
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} |
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public function getApcuMetrics() |
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{ |
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$apcSmaInfo = apcu_sma_info(true); |
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$metrics = [ |
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[ |
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'name' => 'apcu_seg_size', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $apcSmaInfo['seg_size'], |
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], |
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[ |
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'name' => 'apcu_avail_mem', |
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'help' => '', |
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'type' => 'gauge', |
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'value' => $apcSmaInfo['avail_mem'], |
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], |
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]; |
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foreach (new \APCuIterator('/^' . $this->config['apcu_key_prefix'] . $this->config['apcu_key_separator'] . '/') as $item) { |
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$value = apcu_fetch($item['key'], $success); |
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if (!$success) { |
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continue; |
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} |
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$parts = explode($this->config['apcu_key_separator'], $item['key']); |
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parse_str($parts[3], $labels); |
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$metrics[] = [ |
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'name' => $parts[1], |
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'help' => '', |
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'type' => $parts[2], |
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'value' => $value, |
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'labels' => $labels, |
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]; |
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} |
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return $metrics; |
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} |
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public function render() |
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{ |
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$defaultLabels = ['application' => $this->config['application']]; |
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$metrics = array_merge($this->getSystemLoadAvgMetrics(), $this->getSwooleMetrics(), $this->getApcuMetrics()); |
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$lines = []; |
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foreach ($metrics as $metric) { |
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$lines[] = "# HELP " . $metric['name'] . " {$metric['help']}"; |
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$lines[] = "# TYPE " . $metric['name'] . " {$metric['type']}"; |
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$metricLabels = isset($metric['labels']) ? $metric['labels'] : []; |
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$labels = ['{']; |
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$allLabels = array_merge($defaultLabels, $metricLabels); |
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foreach ($allLabels as $key => $value) { |
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$value = addslashes($value); |
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$labels[] = "{$key}=\"{$value}\","; |
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} |
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$labels[] = '}'; |
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$labelStr = implode('', $labels); |
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$lines[] = $metric['name'] . "$labelStr {$metric['value']}"; |
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} |
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return implode("\n", $lines); |
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} |
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} |
hhxsv5 /
laravel-s
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