///

Nous les mettons donc dans leur propre module `dependencies` (`app/dependencies.py`).

Nous allons maintenant utiliser une dépendance simple pour lire un en-tête personnalisé `X-Token` :

{* ../../docs_src/bigger_applications/app_an_py310/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip | Astuce

Nesse caso, seria melhor obter **um servidor extra** e executar alguns processos nele para que todos tenham **RAM e tempo de CPU suficientes**.

Pour comprendre comment mettre en place ce parallélisme en production, allez lire la section [Déploiement](deployment/index.md).

## `async` et `await` { #async-and-await }

```

Assurez-vous d'utiliser toujours la forme **exec** pour garantir que FastAPI peut s'arrêter proprement et que les [événements de cycle de vie](../advanced/events.md) sont déclenchés.

Vous pouvez en lire davantage dans la [documentation Docker sur les formes shell et exec](https://docs.docker.com/reference/dockerfile/#shell-and-exec-form).

  * A new `MountOptions` field in the `StorageClass` spec allows configuration of mount options for dynamically provisioned volumes.

* [stable] Support Attach and Detach operations for ReadWriteOnce (RWO) volumes that use iSCSI and Fibre Channel plugins.

* [stable] Expose storage usage metrics

  * The available capacity of a given Persistent Volume (PV) is available by calling the Kubernetes metrics API.

* [stable] Volume plugin metrics

- Fixed a storage bug related to multipath. iSCSI and Fibre Channel devices attached to nodes via multipath now resolve correctly when partitioned. ([#128086](https://github.com/kubernetes/kubernetes/pull/128086), [@RomanBednar](https://github.com/RomanBednar))

*   [alpha] Raw block volumes
    *   Support for surfacing volumes as raw block devices added to Kubernetes storage system.
    *   Only Fibre Channel volume plugin supports exposes this functionality, in this release.
*   [alpha] Volume resizing
    *   Added file system resizing for the following volume plugins: GCE PD, Ceph RBD, AWS EBS, OpenStack Cinder

- Fixed a storage bug around multipath. iSCSI and Fibre Channel devices attached to nodes via multipath now resolve correctly if partitioned. ([#129182](https://github.com/kubernetes/kubernetes/pull/129182), [@RomanBednar](https://github.com/RomanBednar)) [SIG Storage]

- Fixed a storage bug around multipath. iSCSI and Fibre Channel devices attached to nodes via multipath now resolve correctly if partitioned. ([#129183](https://github.com/kubernetes/kubernetes/pull/129183), [@RomanBednar](https://github.com/RomanBednar)) [SIG Storage]