open-telemetry/opentelemetry-auto-wordpress

OpenTelemetry auto-instrumentation for Wordpress

0.0.15 2024-01-21 05:05 UTC

Requires

• php: ^8.0
• ext-opentelemetry: *
• nyholm/psr7: ^1
• nyholm/psr7-server: ^1
• open-telemetry/api: ^1.0
• open-telemetry/sem-conv: ^1.23

Requires (Dev)

• friendsofphp/php-cs-fixer: ^3
• phan/phan: ^5.0
• php-http/mock-client: *
• phpstan/phpstan: ^1.1
• phpstan/phpstan-phpunit: ^1.0
• phpunit/phpunit: ^9.5
• psalm/plugin-phpunit: ^0.16
• vimeo/psalm: ^4.0

Apache-2.0

• wordpress
• instrumentation
• tracing
• opentelemetry
• open-telemetry
• otel

README

This is a read-only subtree split of https://github.com/open-telemetry/opentelemetry-php-contrib.

OpenTelemetry Wordpress auto-instrumentation

Please read https://opentelemetry.io/docs/instrumentation/php/automatic/ for instructions on how to install and configure the extension and SDK.

Requirements

• OpenTelemetry extension
• OpenTelemetry SDK + exporter (required to actually export traces)
• WordPress installation
• OpenTelemetry SDK Autoloading configured

Overview

OpenTelemetry depends on composer, unlike Wordpress. This extension was developed against johnpbloch/wordpress-core, but it should also work with other installation methods.

An example in Docker of extending the official Wordpress image to enable auto-instrumentation: https://github.com/open-telemetry/opentelemetry-php-contrib/tree/main/examples/instrumentation/Wordpress

apache

Configure (eg via .htaccess) a PHP prepend file to initialize composer:

php_value auto_prepend_file /var/www/vendor/autoload.php

This will install the composer autoloader before running Wordpress. As part of composer autoloading, scripts are executed for installed modules, importantly:

• OpenTelemetry SDK Autoloader
• this library's _register.php file

Installation via composer

$ composer require open-telemetry/opentelemetry-auto-wordpress

Configuration

The extension can be disabled via runtime configuration:

OTEL_PHP_DISABLED_INSTRUMENTATIONS=wordpress