COPY ./app /code/app

# (1)!
CMD ["fastapi", "run", "app/main.py", "--port", "80", "--workers", "4"]
```

1. Hier verwenden wir die `--workers` Befehlszeilenoption, um die Anzahl der Worker auf 4 festzulegen.

Hier sind einige Beispiele, wann das sinnvoll sein könnte:

#### Eine einfache Anwendung { #a-simple-app }

    <!-- These packages are duplicated in workers and daemon-server-worker, don't require a package-info.java in each place -->
    <suppress checks="JavadocPackage"
              files=".*[/\\]platforms[/\\]core-execution[/\\]daemon-server-worker[/\\]src[/\\]main[/\\]java[/\\]org[/\\]gradle[/\\]workers[/\\][^/\\]+"/>

    <!-- These packages are duplicated in code-quality and code-quality-workers, don't require a package-info.java in each place -->

    "crossVersionTests": false
  },
  {
    "name": "scala-compiler-worker",
    "path": "platforms/jvm/scala-compiler-worker",
    "unitTests": false,
    "functionalTests": false,
    "crossVersionTests": false
  },
  {
    "name": "scaladoc-worker",
    "path": "platforms/jvm/scaladoc-worker",
    "unitTests": false,
    "functionalTests": false,
    "crossVersionTests": false

		workers = workers[:len(workers)-1]
		worker <- expiryOp(nil)
		es.stats.workers.Add(-1)
	}
	// Atomically replace workers.
	es.workers.Store(&workers)
}

// Worker handles 4 types of expiration tasks.
// 1. Expiry of objects, includes regular and transitioned objects
// 2. Expiry of noncurrent versions due to NewerNoncurrentVersions

  int port = tensorflow::testing::PickUnusedPortOrDie();
  // 3. Replace worker1 with a new worker in server_def_0 and server_def_1.
  ReplaceTaskInServerDef(&server_def_0, /*task_index=*/1, "localhost", port);
  ReplaceTaskInServerDef(&server_def_1, /*task_index=*/1, "localhost", port);
  // 4. Start a new task to replace worker1.
  server_def_0.set_task_index(1);
  worker_server1.release();

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

COPY ./app /code/app

# (1)!
CMD ["fastapi", "run", "app/main.py", "--port", "80", "--workers", "4"]
```

1. Burada worker sayısını 4 yapmak için `--workers` komut satırı seçeneğini kullanıyoruz.

Bunun mantıklı olabileceği birkaç örnek:

#### Basit Bir Uygulama { #a-simple-app }

Donc, dans ce cas, vous **ne voudrez pas** avoir plusieurs workers dans le conteneur, par exemple avec l'option de ligne de commande `--workers`. Vous voudrez avoir **un seul processus Uvicorn** par conteneur (mais probablement plusieurs conteneurs).

            <option value="$PROJECT_DIR$/platforms/jvm/code-quality-workers" />
            <option value="$PROJECT_DIR$/platforms/jvm/distributions-jvm" />
            <option value="$PROJECT_DIR$/platforms/jvm/ear" />
            <option value="$PROJECT_DIR$/platforms/jvm/groovy-compiler-worker" />
            <option value="$PROJECT_DIR$/platforms/jvm/groovydoc-worker" />
            <option value="$PROJECT_DIR$/platforms/jvm/jacoco" />

Aquí hay algunas combinaciones y estrategias posibles:

* **Uvicorn** con `--workers`
    * Un administrador de procesos de Uvicorn **escucharía** en la **IP** y **puerto**, y iniciaría **múltiples worker processes de Uvicorn**.
* **Kubernetes** y otros sistemas de **contenedor distribuidos**

Y si necesitas tener múltiples workers, puedes simplemente utilizar la opción de línea de comandos `--workers`.

/// note | Detalles Técnicos

La imagen de Docker se creó cuando Uvicorn no soportaba gestionar y reiniciar workers muertos, por lo que era necesario usar Gunicorn con Uvicorn, lo que añadía bastante complejidad, solo para que Gunicorn gestionara y reiniciara los worker processes de Uvicorn.