Using `BackgroundTasks` also works with the dependency injection system, you can declare a parameter of type `BackgroundTasks` at multiple levels: in a *path operation function*, in a dependency (dependable), in a sub-dependency, etc.

**FastAPI** knows what to do in each case and how to reuse the same object, so that all the background tasks are merged together and are run in the background afterwards:

Contêineres Linux rodam usando o mesmo kernel Linux do hospedeiro (máquina, máquina virtual, servidor na nuvem, etc). Isso simplesmente significa que eles são muito leves (comparados com máquinas virtuais emulando um sistema operacional completo).

{!../../docs_src/additional_status_codes/tutorial001.py!}
```

/// warning | Advertencia

Cuando devuelves directamente una `Response`, como en los ejemplos anteriores, será devuelta directamente.

No será serializado con el modelo, etc.

Asegúrate de que la respuesta tenga los datos que quieras, y que los valores sean JSON válidos (si estás usando `JSONResponse`).

///

/// note | Detalles Técnicos

  connectTimeout: 1s
  #
  ### ADVANCED SETTINGS #############
  # Where should envoy's configuration be stored in the istio-proxy container
  configPath: "/etc/istio/proxy"
  binaryPath: "/usr/local/bin/envoy"
  # The pseudo service name used for Envoy.
  serviceCluster: istio-proxy
  # These settings that determine how long an old Envoy

Le schéma inclut les chemins de votre API, les paramètres potentiels de chaque chemin, etc.

#### "Schéma" de données

Le terme "schéma" peut aussi faire référence à la forme de la donnée, comme un contenu JSON.

Dans ce cas, cela signifierait les attributs JSON, ainsi que les types de ces attributs, etc.

#### OpenAPI et JSON Schema

    hostname: minio4
    volumes:
      - cdata4-1:/cdata1
      - cdata4-2:/cdata2

  nginx:
    image: nginx:1.19.2-alpine
    hostname: nginx
    volumes:
      - ./nginx-4-node.conf:/etc/nginx/nginx.conf:ro
    ports:
      - "9000:9000"
      - "9001:9001"
    depends_on:
      - minio1
      - minio2
      - minio3
      - minio4

## By default this config uses default local driver,

    hostname: minio4
    volumes:
      - rdata4-1:/rdata1
      - rdata4-2:/rdata2

  nginx:
    image: nginx:1.19.2-alpine
    hostname: nginx
    volumes:
      - ./nginx-4-node.conf:/etc/nginx/nginx.conf:ro
    ports:
      - "9000:9000"
      - "9001:9001"
    depends_on:
      - minio1
      - minio2
      - minio3
      - minio4

## By default this config uses default local driver,

    hostname: site1-minio4
    volumes:
      - site1-data4-1:/data1
      - site1-data4-2:/data2

  site1-nginx:
    image: nginx:1.19.2-alpine
    hostname: site1-nginx
    volumes:
      - ./nginx-site1.conf:/etc/nginx/nginx.conf:ro
    ports:
      - "9001:9001"
    depends_on:
      - site1-minio1
      - site1-minio2
      - site1-minio3
      - site1-minio4

## By default this config uses default local driver,

      required: true

  - type: textarea
    id: osVersion
    attributes:
      label: OS version
      value: |
        <details>

        ```console
        # On Linux:
        $ cat /etc/os-release
        # paste output here
        $ uname -a
        # paste output here

        # On Windows:
        C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
        # paste output here

## OpenAPI Metadata - Docs

Para adicionar metadados ao seu esquema OpenAPI, incluindo  licensa, versão, contato, etc, leia a seção [Tutorial - Metadata and Docs URLs](../tutorial/metadata.md){.internal-link target=_blank}.

## OpenAPI com URL customizada