2 files changed, 33 insertions, 6 deletions
diff --git a/src/Controllers/Metrics/Controller.php b/src/Controllers/Metrics/Controller.php
index f6ea3967..ffb2a41b 100644
--- a/src/Controllers/Metrics/Controller.php
+++ b/src/Controllers/Metrics/Controller.php
@@ -4,6 +4,7 @@ namespace Engelsystem\Controllers\Metrics;
 
 use Engelsystem\Config\Config;
 use Engelsystem\Controllers\BaseController;
+use Engelsystem\Helpers\Version;
 use Engelsystem\Http\Exceptions\HttpForbidden;
 use Engelsystem\Http\Request;
 use Engelsystem\Http\Response;
@@ -26,25 +27,31 @@ class Controller extends BaseController
     /** @var Stats */
     protected $stats;
 
+    /** @var Version */
+    protected $version;
+
     /**
      * @param Response      $response
      * @param MetricsEngine $engine
      * @param Config        $config
      * @param Request       $request
      * @param Stats         $stats
+     * @param Version       $version
      */
     public function __construct(
         Response $response,
         MetricsEngine $engine,
         Config $config,
         Request $request,
-        Stats $stats
+        Stats $stats,
+        Version $version
     ) {
         $this->config = $config;
         $this->engine = $engine;
         $this->request = $request;
         $this->response = $response;
         $this->stats = $stats;
+        $this->version = $version;
     }
 
     /**
@@ -68,6 +75,18 @@ class Controller extends BaseController
 
         $data = [
             $this->config->get('app_name') . ' stats',
+            'info'                 => [
+                'type' => 'gauge',
+                'help' => 'About the environment',
+                [
+                    'labels' => [
+                        'os'      => PHP_OS_FAMILY,
+                        'php'     => implode('.', [PHP_MAJOR_VERSION, PHP_MINOR_VERSION]),
+                        'version' => $this->version->getVersion(),
+                    ],
+                    'value'  => 1,
+                ],
+            ],
             'users'                => [
                 'type' => 'gauge',
                 ['labels' => ['state' => 'incoming'], 'value' => $this->stats->newUsers()],
diff --git a/src/Controllers/Metrics/MetricsEngine.php b/src/Controllers/Metrics/MetricsEngine.php
index 1e0f6957..21ae8fd0 100644
--- a/src/Controllers/Metrics/MetricsEngine.php
+++ b/src/Controllers/Metrics/MetricsEngine.php
@@ -9,13 +9,13 @@ class MetricsEngine implements EngineInterface
     /**
      * Render metrics
      *
-     * @example $data = ['foo' => [['labels' => ['foo'=>'bar'], 'value'=>42]], 'bar'=>123]
-     *
      * @param string  $path
      * @param mixed[] $data
      * @return string
+     *
+     * @example $data = ['foo' => [['labels' => ['foo'=>'bar'], 'value'=>42]], 'bar'=>123]
      */
-    public function get($path, $data = []): string
+    public function get(string $path, array $data = []): string
     {
         $return = [];
         foreach ($data as $name => $list) {
@@ -52,7 +52,7 @@ class MetricsEngine implements EngineInterface
      * @param string $path
      * @return bool
      */
-    public function canRender($path): bool
+    public function canRender(string $path): bool
     {
         return $path == '/metrics';
     }
@@ -60,8 +60,8 @@ class MetricsEngine implements EngineInterface
     /**
      * @param string      $name
      * @param array|mixed $row
-     * @see https://prometheus.io/docs/instrumenting/exposition_formats/
      * @return string
+     * @see https://prometheus.io/docs/instrumenting/exposition_formats/
      */
     protected function formatData($name, $row): string
     {
@@ -135,4 +135,12 @@ class MetricsEngine implements EngineInterface
             $value
         );
     }
+
+    /**
+     * Does nothing as shared data will onyly result in unexpected behaviour
+     *
+     * @param string|mixed[] $key
+     * @param mixed          $value
+     */
+    public function share($key, $value = null) { }
 }