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feat: #207 metrics ingestion endpoint v0.1
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,250 @@ | ||
| <?php | ||
|
|
||
| namespace ApiNodes\Http\Controllers; | ||
|
|
||
| use App\Models\DeploymentData\Process; | ||
| use App\Models\Node; | ||
| use App\Util\Promexport; | ||
| use Illuminate\Http\Request; | ||
| use Illuminate\Http\Response; | ||
| use Illuminate\Log\Logger; | ||
| use Illuminate\Support\Facades\Http; | ||
|
|
||
| class MetricsController | ||
| { | ||
| const HISTOGRAM_LABELS = [ | ||
| '0.005', | ||
| '0.01', | ||
| '0.025', | ||
| '0.05', | ||
| '0.1', | ||
| '0.25', | ||
| '0.5', | ||
| '1', | ||
| '2.5', | ||
| '5', | ||
| '10', | ||
| '+Inf', | ||
| ]; | ||
|
|
||
| const DISK_USAGE_PATHS = [ | ||
| '/', | ||
| ]; | ||
|
|
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| const DISK_IO_DEVICES = [ | ||
| 'sda', | ||
| 'sdb', | ||
| 'sdc', | ||
| ]; | ||
|
|
||
| const DISK_IO_OPERATIONS = [ | ||
| 'reads', | ||
| 'writes', | ||
| ]; | ||
|
|
||
| // Please don't judge me for this code. I'm a PHP developer. | ||
| public function __invoke(Request $request, Logger $log, Node $node) | ||
| { | ||
| if ($node->swarm === null) { | ||
| return new Response('{}', 204); | ||
| } | ||
|
|
||
| // TODO: cache this with the new Laravel cache system (stale-while-revalidate from the recent release) | ||
| $interfaces = collect($node->data->host->networks)->pluck('if_name')->unique()->toArray(); | ||
|
|
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| $services = $node->team->services->mapWithKeys(function ($service) { | ||
| $processes = collect($service->latestDeployment->data->processes); | ||
|
|
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| $ruleIds = $processes->mapWithKeys(function (Process $process) { | ||
| $caddyIds = collect($process->caddy)->pluck('id'); | ||
| $redirectRuleIds = collect($process->redirectRules)->pluck('id'); | ||
| $rewriteRuleIds = collect($process->rewriteRules)->pluck('id'); | ||
|
|
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| $ruleIds = $caddyIds->merge($redirectRuleIds)->merge($rewriteRuleIds)->toArray(); | ||
|
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| $serversNames = collect($process->caddy)->pluck('publishedPort')->unique()->map(function ($port) { | ||
| return match ($port) { | ||
| 80 => 'http', | ||
| 443 => 'https', | ||
| default => 'listen_'.$port, | ||
| }; | ||
| })->toArray(); | ||
|
|
||
| return [ | ||
| $process->name => [ | ||
| 'ruleIds' => $ruleIds, | ||
| 'serversNames' => $serversNames, | ||
| ], | ||
| ]; | ||
| })->toArray(); | ||
|
|
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| return [$service->id => $ruleIds]; | ||
| })->toArray(); | ||
|
|
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| $services['ptah_404'] = [ | ||
| 'ptah_404' => [ | ||
| 'ruleIds' => ['ptah_404'], | ||
| 'serversNames' => ['http', 'https'], | ||
| ], | ||
| ]; | ||
|
|
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| $log->info('Services:', [ | ||
| 'services' => $services, | ||
| ]); | ||
|
|
||
| foreach ($request->all() as $metricsDoc) { | ||
| if ($metricsDoc === null) { | ||
| continue; | ||
| } | ||
|
|
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| $query = ''; | ||
| $query .= '?extra_label=swarm_id='.$node->swarm->id; | ||
| $query .= '&extra_label=node_id='.$node->id; | ||
|
|
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| $ingestMetrics = []; | ||
|
|
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| $lines = explode("\n", $metricsDoc); | ||
| foreach ($lines as $line) { | ||
| if (empty($line) || strpos($line, '#') === 0) { | ||
| continue; | ||
| } | ||
|
|
||
| $metric = Promexport::parseLine($line); | ||
| if ($metric) { | ||
| $labels = $metric['labels']; | ||
|
|
||
| switch ($metric['metric']) { | ||
| case 'ptah_caddy_http_requests_duration_bucket': | ||
| case 'ptah_caddy_http_requests_ttfb_bucket': | ||
| if (empty($labels['le'])) { | ||
| break; | ||
| } | ||
|
|
||
| if (! in_array($labels['le'], self::HISTOGRAM_LABELS)) { | ||
| break; | ||
| } | ||
|
|
||
| // no break, fall through | ||
| case 'ptah_caddy_http_requests_count': | ||
| case 'ptah_caddy_http_requests_duration_count': | ||
| case 'ptah_caddy_http_requests_duration_sum': | ||
| case 'ptah_caddy_http_requests_ttfb_count': | ||
| case 'ptah_caddy_http_requests_ttfb_sum': | ||
| if (empty($labels['status_code'])) { | ||
| break; | ||
| } | ||
|
|
||
| if ($labels['status_code'] < 100 || $labels['status_code'] > 599) { | ||
| break; | ||
| } | ||
|
|
||
| // no break, fall through | ||
| case 'ptah_caddy_http_requests_in_flight': | ||
| if (empty($labels['service_id']) || empty($labels['process_id']) || empty($labels['server_name']) || empty($labels['rule_id'])) { | ||
| break; | ||
| } | ||
|
|
||
| if (! isset($services[$labels['service_id']]) && $labels['service_id'] !== 'ptah_404') { | ||
| break; | ||
| } | ||
|
|
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| $service = $services[$labels['service_id']]; | ||
|
|
||
| if (! isset($service[$labels['process_id']])) { | ||
| break; | ||
| } | ||
|
|
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| $process = $service[$labels['process_id']]; | ||
|
|
||
| if (! in_array($labels['server_name'], $process['serversNames'])) { | ||
| break; | ||
| } | ||
|
|
||
| if (! in_array($labels['rule_id'], $process['ruleIds'])) { | ||
| break; | ||
| } | ||
|
|
||
| $ingestMetrics[] = $line; | ||
|
|
||
| break; | ||
| case 'ptah_node_disk_io_ops_count': | ||
| if (empty($labels['device']) || empty($labels['operation'])) { | ||
| break; | ||
| } | ||
|
|
||
| if (! in_array($labels['device'], self::DISK_IO_DEVICES) || ! in_array($labels['operation'], self::DISK_IO_OPERATIONS)) { | ||
| break; | ||
| } | ||
|
|
||
| $ingestMetrics[] = $line; | ||
|
|
||
| break; | ||
| case 'ptah_node_network_rx_bytes': | ||
| case 'ptah_node_network_tx_bytes': | ||
| if (empty($labels['interface'])) { | ||
| break; | ||
| } | ||
|
|
||
| if (! in_array($labels['interface'], $interfaces)) { | ||
| break; | ||
| } | ||
|
|
||
| $ingestMetrics[] = $line; | ||
|
|
||
| break; | ||
| case 'ptah_node_disk_usage_free': | ||
| case 'ptah_node_disk_usage_total': | ||
| case 'ptah_node_disk_usage_used': | ||
| if (empty($labels['path'])) { | ||
| break; | ||
| } | ||
|
|
||
| if (! in_array($labels['path'], self::DISK_USAGE_PATHS)) { | ||
| break; | ||
| } | ||
|
|
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| $ingestMetrics[] = $line; | ||
|
|
||
| break; | ||
| case 'ptah_node_cpu_idle': | ||
| case 'ptah_node_cpu_nice': | ||
| case 'ptah_node_cpu_system': | ||
| case 'ptah_node_cpu_total': | ||
| case 'ptah_node_cpu_user': | ||
| case 'ptah_node_load_avg_1': | ||
| case 'ptah_node_load_avg_5': | ||
| case 'ptah_node_load_avg_15': | ||
| case 'ptah_node_memory_free': | ||
| case 'ptah_node_memory_total': | ||
| case 'ptah_node_memory_used': | ||
| case 'ptah_node_uptime': | ||
| $ingestMetrics[] = $line; | ||
|
|
||
| break; | ||
| default: | ||
| // unknown metric | ||
|
|
||
| break; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| $log->info('Metrics:', [ | ||
| 'metrics' => $ingestMetrics, | ||
| ]); | ||
|
|
||
| // TODO: use value from config (/env vars) | ||
| $response = Http::withBody(implode("\n", $ingestMetrics), 'text/plain')->post("http://127.0.0.1:8080/api/v1/import/prometheus$query"); | ||
|
|
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| $log->info('VictoriaMetrics response:', [ | ||
| 'status' => $response->status(), | ||
| 'body' => $response->body(), | ||
| ]); | ||
| } | ||
|
|
||
| $response = new Response('{}', 204); | ||
| $response->headers->set('Content-Type', 'application/json'); | ||
|
|
||
| return $response; | ||
| } | ||
| } |
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