///

## 多个工作进程

您可以使用 `--workers` 命令行选项来启动多个工作进程：

//// tab | `fastapi`

如果您使用 `fastapi` 命令：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> run --workers 4 <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting production server 🚀

## GunicornとUvicornをインストールする

<div class="termy">

```console
$ pip install "uvicorn[standard]" gunicorn

---> 100%
```

</div>

これによりUvicornと（高性能を得るための）標準（`standard`）の追加パッケージとGunicornの両方がインストールされます。

## UvicornのワーカーとともにGunicornを実行する

Gunicornを以下のように起動させることができます:

<div class="termy">

```console

## 安装

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>

你还会需要一个 ASGI 服务器，生产环境可以使用 <a href="https://www.uvicorn.dev" class="external-link" target="_blank">Uvicorn</a> 或者 <a href="https://github.com/pgjones/hypercorn" class="external-link" target="_blank">Hypercorn</a>。

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 19] *}

### Check the automatic API docs { #check-the-automatic-api-docs }

Now, run the `fastapi` command with your file:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## Install dependencies { #install-dependencies }

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and install `jinja2`:

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## Using `Jinja2Templates` { #using-jinja2templates }

* Import `Jinja2Templates`.
* Create a `templates` object that you can reuse later.

{* ../../docs_src/async_tests/app_a_py39/test_main.py *}

## Запуск тестов { #run-it }

Вы можете запустить свои тесты как обычно:

<div class="termy">

```console
$ pytest

---> 100%
```

</div>

## Подробнее { #in-detail }

Маркер `@pytest.mark.anyio` говорит pytest, что тестовая функция должна быть вызвана асинхронно:

Before deploying, make sure you are logged in:

<div class="termy">

```console
$ fastapi login

You are logged in to FastAPI Cloud 🚀
```

</div>

Then deploy your app:

<div class="termy">

```console
$ fastapi deploy

Deploying to FastAPI Cloud...

✅ Deployment successful!

## Multiple Workers { #multiple-workers }

You can start multiple workers with the `--workers` command line option:

//// tab | `fastapi`

If you use the `fastapi` command:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> run --workers 4 <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting production server 🚀

            assertTrue("Exception message should mention 'null'", message.toLowerCase().contains("null"));
        }
    }

    /**
     * Test that validateInputStream does not modify or consume the stream.
     */
    public void test_validateInputStream_doesNotConsumeStream() throws Exception {
        final byte[] testData = "test data for validation".getBytes();

en las <a href="https://docs.docker.com/reference/dockerfile/#shell-and-exec-form" class="external-link" target="_blank">documentación de Docker para formas de shell y exec</a>.

Esto puede ser bastante notorio al usar `docker compose`. Consulta esta sección de preguntas frecuentes de Docker Compose para más detalles técnicos: <a href="https://docs.docker.com/compose/faq/#why-do-my-services-take-10-seconds-to-recreate-or-stop" class="external-link" target="_blank">¿Por qué mis servicios...