LaravelPrometheusExporter
A laravel and lumen service provider to export metrics for prometheus.
Supported laravel versions
Laravel 7.x
Main features
- Metrics with APC
- Metrics with Redis
- Metrics with InMemory
- Metrics with the push gateway
- Request per route middleware (total and duration metrics)
Installation
Composer
composer require hans-thomas/laravel-prometheus-exporter
Application
Once installed you can now publish your config file and set your correct configuration for using the package.
php artisan vendor:publish --provider="Hasn\PrometheusExporter\Provider\PrometheusExporterServiceProvider" --tag="config"This will create a file config/prometheus-exporter.php.
Configuration
| Key | Env | Value | Description | Default |
|---|---|---|---|---|
| adapter | PROMETHEUS_ADAPTER | STRING | apc, redis, inmemory or push | apc |
| namespace | --- | STRING | default: app | app |
| namespace_http | --- | STRING | namespace for "RequestPerRoute-Middleware metrics" | http |
| redis.host | PROMETHEUS_REDIS_HOST, REDIS_HOST | STRING | redis host | 127.0.0.1 |
| redis.port | PROMETHEUS_REDIS_PORT, REDIS_PORT | INTEGER | redis port | 6379 |
| redis.password | PROMETHEUS_REDIS_PASSWORD, REDIS_PASSWORD | STRING | redis password | null |
| redis.timeout | --- | FLOAT | redis timeout | 0.1 |
| redis.read_timeout | --- | INTEGER | redis read timeout | 10 |
| push_gateway.address | PROMETHEUS_PUSH_GATEWAY_ADDRESS | STRING | push gateway address | localhost:9091 |
| buckets_per_route | --- | STRING | histogram buckets for "RequestPerRoute-Middleware" | --- |
buckets_per_route
'buckets_per_route' => [
ROUTE-NAME => [10,20,50,100,200],
...
]
Usage
Get metrics
Laravel
When you are using laravel you can use the default http endpoint:
hans/pe/metrics
Of course you can also register your own route. Here is an example:
Route::get(
ROUTE,
[ \Hans\PrometheusExporter\Controller\LaravelController::class, 'metrics']
);
Middleware
RequestPerRoute
A middleware to build metrics for "request_total" and "requests_latency_milliseconds" per route.
Alias
lpe.requestPerRoute
Metrics
- requests_total (inc)
- requests_latency_milliseconds (histogram)
Example
$router->get('/test/route', function () {
return 'valid';
})->middleware('lpe.requestPerRoute');app_requests_latency_milliseconds_bucket{route="/test/route",method="GET",status_code="200",le="0.005"} 0 ... app_requests_latency_milliseconds_count{route="/test/route",method="GET",status_code="200"} 1 app_requests_latency_milliseconds_sum{route="/test/route",method="GET",status_code="200"} 6 app_requests_total{route="/test/route",method="GET",status_code="200"} 1
Roadmap
- histogram buckets per route (RequestPerRoute)
Reporting Issues
If you do find an issue, please feel free to report it with GitHub's bug tracker for this project.
Alternatively, fork the project and make a pull request. :)
Testing
- docker-compose up
- docker exec fpm ./vendor/phpunit/phpunit/phpunit
Contributing
Please see CONTRIBUTING for details.
Other
License
The code for LaravelPrometheusExporter is distributed under the terms of the MIT license (see LICENSE).
