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Example code of l3tum/prometheus-metrics-bundle

Informations about the package prometheus-metrics-bundle

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[Coverage Status] [Coverage Status]

Symfony 5 Prometheus Metrics Bundle

Installation

Applications that use Symfony Flex

Open a command console, enter your project directory and execute:

Applications that don't use Symfony Flex

Step 1: Download the Bundle

Open a command console, enter your project directory and execute the following command to download the latest stable version of this bundle:

This command requires you to have Composer installed globally, as explained in the installation chapter of the Composer documentation.

Step 2: Enable the Bundle

Then, enable the bundle by adding it to the list of registered bundles in the app/AppKernel.php file of your project:

Configuration

config.yaml

routes.yaml

You can alternatively define your own path and rules:

Now your metrics are available to Prometheus using http:///metrics/prometheus.

Custom Metrics Collector

If you want to collect your own metrics, you should create a class that will implement L3tum\PrometheusMetricsBundle\Metrics\MetricsCollectorInterface. Something like this:

When using autoconfigure = true, by implementing L3tum\PrometheusMetricsBundle\Metrics\MetricsCollectorInterface Symfony will automatically configure your metrics collector to be used by the collector registry.

If you don't use autoconfigure = true, then you will have to add this to your services.yaml:

Default Metrics

These are default metrics exported by the application:

Note that, php_info comes from the underlying library promphp/prometheus_client_php. Other metrics are gathered by the built-in class L3tum\PrometheusMetricsBundle\Metrics. Here, in the example we have a prefix symfony and the metrics show a single request to the root named app_dummy_homepage. Symfony instance is named dev here. Instance name comes from the server var HOSTNAME ($request->server->get('HOSTNAME')) and defaults to dev.

Code license

You are free to use the code in this repository under the terms of the MIT license. LICENSE contains a copy of this license.

All versions of prometheus-metrics-bundle with dependencies

PHP Build Version
Package Version
Requires php Version ^7.2|^8.0
ext-json Version *
promphp/prometheus_client_php Version ^2.2
symfony/http-kernel Version ^4.4|^5.1.5
symfony/dependency-injection Version ^4.4|^5.1.5
symfony/config Version ^4.4|^5.1.5
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