SimpleOtel/simple-otel/controller.php

<?php
namespace Concrete\Package\SimpleOtel;

use Concrete\Core\Package\Package;
use OpenTelemetry\SDK\Trace\TracerProvider;
use OpenTelemetry\SDK\Trace\SpanProcessor\SimpleSpanProcessor;
use OpenTelemetry\Contrib\OtlpGrpc\Exporter as OtlpGrpcExporter;

class Controller extends Package
{
    protected $pkgHandle = 'simple_otel';
    protected $appVersionRequired = '8.0';
    protected $pkgVersion = '1.0';

    public function getPackageName()
    {
        return t('Simple Otel');
    }

    public function getPackageDescription()
    {
        return t('Integrate OpenTelemetry with Concrete5.');
    }

    public function on_start()
    {
        require_once __DIR__ . '/vendor/autoload.php';
        require_once __DIR__ . '/config.php';

        $otlpExporter = new OtlpGrpcExporter([
            'endpoint' => $otel_exporter_otlp_endpoint,
        ]);

        $tracerProvider = new TracerProvider(
            new SimpleSpanProcessor($otlpExporter)
        );

        \OpenTelemetry\API\Globals::setTracerProvider($tracerProvider);
    }
}