Update.

src/Bundle/ChillWopiBundle/src/DependencyInjection/ChillWopiExtension.php

@@ -18,12 +18,20 @@ final class ChillWopiExtension extends Extension
 {
     public function load(array $configs, ContainerBuilder $container)
     {
+        $config = $this->processConfiguration(new Configuration(), $configs);
+
         $container
             ->setParameter(
                 'chill_wopi',
                 $this->processConfiguration(new Configuration(), $configs)
             );
 
+        $container
+            ->setParameter(
+                'chill_wopi.openstack_client',
+                $config['openstack']
+            );
+
         $loader = new PhpFileLoader($container, new FileLocator(__DIR__ . '/../Resources/config'));
         $loader->load('services.php');
     }

src/Bundle/ChillWopiBundle/src/Resources/config/services.php

@@ -21,13 +21,14 @@ return static function (ContainerConfigurator $container) {
         ->autoconfigure();
 
     $services
-        ->load('Chill\\WopiBundle\\Service\\', __DIR__ . '/../../Service');
+        ->load('ChampsLibres\\WopiTestBundle\\Service\\', __DIR__ . '/../../Service');
 
     $services
         ->load('Chill\\WopiBundle\\Controller\\', __DIR__ . '/../../Controller')
         ->tag('controller.service_arguments');
 
     $services
-        ->set(OpenStack::class)
+        ->set('chill_wopi.openstack_client')
-        ->arg('$options', '%chill_wopi.openstack%');
+        ->class(OpenStack::class)
+        ->arg('$options', '%chill_wopi.openstack_client%');
 };