spiral/roadrunner-metrics

RoadRunner: Prometheus metrics RPC

v3.2.0 2024-04-11 18:10 UTC

Requires

• php: >=8.1
• psr/log: >=2.0
• spiral/goridge: ^4.0
• spiral/roadrunner: ^2023.1 || ^2024.1

Requires (Dev)

• jetbrains/phpstorm-attributes: ^1.0
• phpunit/phpunit: ^10.0
• vimeo/psalm: >=5.8

Suggests

• spiral/roadrunner-cli: Provides RoadRunner installation and management CLI tools

MIT

• Anton Titov (wolfy-j)
• Pavel Buchnev (butschster)
• Aleksei Gagarin (roxblnfk)
• Maksim Smakouz (msmakouz)
• Kirill Nesmeyanov (SerafimArts)
• RoadRunner Community

README

RoadRunner Metrics Plugin

This repository contains the codebase PHP bridge using RoadRunner Metrics plugin.

Installation:

To install RoadRunner extension:

composer require spiral/roadrunner-metrics

You can use the convenient installer to download the latest available compatible version of RoadRunner assembly:

composer require spiral/roadrunner-cli --dev
vendor/bin/rr get

Configuration

Enable metrics service in your .rr.yaml file:

rpc:
    listen: tcp://127.0.0.1:6001

server:
    command: "php worker.php"

http:
    address: "0.0.0.0:8080"

metrics:
    address: "0.0.0.0:2112"

Usage

To publish metrics from your application worker:

<?php

declare(strict_types=1);

use Nyholm\Psr7\Factory;use Spiral\Goridge;use Spiral\RoadRunner;

include "vendor/autoload.php";

$worker = new RoadRunner\Http\PSR7Worker(
    RoadRunner\Worker::create(),
    new Factory\Psr17Factory(),
    new Factory\Psr17Factory(),
    new Factory\Psr17Factory()
);

# Create metrics client
$metrics = new RoadRunner\Metrics\Metrics(
    Goridge\RPC\RPC::create(RoadRunner\Environment::fromGlobals()->getRPCAddress())
);

# Declare counter
$metrics->declare(
    'http_requests',
    RoadRunner\Metrics\Collector::counter()
        ->withHelp('Collected HTTP requests.')
        ->withLabels('status', 'method'),
);

while ($req = $worker->waitRequest()) {
    try {
        $response = new \Nyholm\Psr7\Response();
        $response->getBody()->write("hello world");

        # Publish metrics for each request with labels (status, method)
        $metrics->add('http_requests', 1, [
            $response->getStatusCode(),
            $req->getMethod(),
        ]);

        $worker->respond($rsp);
    } catch (\Throwable $e) {
        $worker->getWorker()->error((string)$e);

        $metrics->add('http_requests', 1, [503,$req->getMethod(),]);
    }
}

License:

The MIT License (MIT). Please see LICENSE for more information. Maintained by Spiral Scout.