* Docker Compose
* Docker in Swarm Mode
* Systemd
* Supervisor
* Handled internally by a cloud provider as part of their services
* Others...

## Replication - Processes and Memory { #replication-processes-and-memory }

With a FastAPI application, using a server program like the `fastapi` command that runs Uvicorn, running it once in **one process** can serve multiple clients concurrently.

Without using containers, making applications run on startup and with restarts can be cumbersome and difficult. But when **working with containers** in most cases that functionality is included by default. ✨

## Replication - Number of Processes { #replication-number-of-processes }

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.

It brings the same **developer experience** of building apps with FastAPI to **deploying** them to the cloud. 🎉

It will also take care of most of the things you would need when deploying an app, like:

* HTTPS
* Replication, with autoscaling based on requests
* etc.

FastAPI Cloud is the primary sponsor and funding provider for the *FastAPI and friends* open source projects. ✨

최소한의 노력으로 API를 **구축**, **배포**, **접근**하는 과정을 간소화합니다.

FastAPI로 앱을 만들 때의 동일한 **개발자 경험**을, 클라우드에 **배포**할 때도 제공합니다. 🎉

또한 앱을 배포할 때 보통 필요한 대부분의 것들도 처리해 줍니다. 예를 들면:

* HTTPS
* 요청을 기반으로 자동 스케일링하는 복제(Replication)
* 등

FastAPI Cloud는 *FastAPI and friends* 오픈 소스 프로젝트의 주요 스폰서이자 자금 지원 제공자입니다. ✨

## 다른 클라우드 제공업체에 배포하기 { #deploy-to-other-cloud-providers }

FastAPI는 오픈 소스이며 표준을 기반으로 합니다. 원하는 어떤 클라우드 제공업체에도 FastAPI 앱을 배포할 수 있습니다.

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Application startup complete.

多數情況下，用來「在開機時啟動程式」的同一套工具，也會負責處理自動「重新啟動」。

例如，可以由下列工具處理：

- Docker
- Kubernetes
- Docker Compose
- Docker 的 Swarm 模式
- Systemd
- Supervisor
- 由雲端供應商在其服務內部處理
- 其他...

## 複本：行程與記憶體 { #replication-processes-and-memory }

在 FastAPI 應用中，使用像 `fastapi` 指令（執行 Uvicorn）的伺服器程式，即使只在「一個行程」中執行，也能同時服務多個客戶端。

但很多情況下，你會想同時執行多個工作行程（workers）。

### 多個行程 - Workers { #multiple-processes-workers }

équilibreur de charge** à l'écoute sur le **port** principal de transmettre la communication (les requêtes) vers potentiellement **plusieurs conteneurs** exécutant votre application.

Chacun de ces conteneurs exécutant votre application aura normalement **un seul processus** (par ex. un processus Uvicorn exécutant votre application FastAPI). Ils seront tous des **conteneurs identiques**, exécutant la même chose, mais chacun avec son propre processus, sa mémoire, etc. De cette façon, vous profiterez...

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.

* Docker Compose
* Docker en mode Swarm
* Systemd
* Supervisor
* Pris en charge en interne par un fournisseur cloud dans le cadre de ses services
* Autres ...

## Réplication - Processus et mémoire { #replication-processes-and-memory }

Avec une application FastAPI, en utilisant un programme serveur comme la commande `fastapi` qui exécute Uvicorn, l'exécuter une fois dans **un processus** peut servir plusieurs clients simultanément.