exit_1
fi

sleep 10
val=$(./mc tag list minio1/newbucket --json | jq -r .tagset | jq -r .key)
if [ "${val}" != "val1" ]; then
	echo "expected bucket tag to have replicated, exiting..."
	exit_1
fi
# stop minio1 instance
kill -9 ${site1_pid}
# Update tag on minio2/newbucket when minio1 is down
./mc tag set minio2/newbucket "key=val2"
# create a new bucket on minio2. This should replicate to minio1 after it comes online.

然后，由该系统（本文中为 **FastAPI**）负责执行所有必要的逻辑，为你的代码提供这些所需的依赖（“注入”依赖）。

当你需要以下内容时，这非常有用：

* 共享业务逻辑（同一段代码逻辑反复复用）
* 共享数据库连接
* 实施安全、认证、角色权限等要求
* 以及更多其他内容...

同时尽量减少代码重复。

## 第一步 { #first-steps }

先来看一个非常简单的例子。它现在简单到几乎没什么用。

但这样我们就可以专注于**依赖注入**系统是如何工作的。

### 创建依赖项，或“dependable” { #create-a-dependency-or-dependable }

首先关注依赖项。

它只是一个函数，且可以接收与*路径操作函数*相同的所有参数：

#### Estrutura de diretórios { #directory-structure }

Agora você deve haver uma estrutura de diretório como:

```
.
├── app
│   ├── __init__.py
│   └── main.py
├── Dockerfile

        // Start indexer in separate thread
        indexUpdater.start();

        // Let it run briefly
        ThreadUtil.sleep(100);

        // Stop the indexer
        indexUpdater.setFinishCrawling(true);

        // Wait for completion with longer timeout
        indexUpdater.join(3000);

        assertFalse(errorOccurred.get());

Te contaré más sobre imágenes de contenedores, Docker, Kubernetes, etc. en un capítulo futuro: [FastAPI en Contenedores - Docker](docker.md).

///

## Pasos Previos Antes de Iniciar { #previous-steps-before-starting }

Hay muchos casos en los que quieres realizar algunos pasos **antes de iniciar** tu aplicación.

Por ejemplo, podrías querer ejecutar **migraciones de base de datos**.

3. **Reliability**: 
   - Persistent handles survive 99% of network interruptions
   - Witness protocol achieves <5 second failover time
4. **Compatibility**: Works with Windows Server 2016+ and Azure Files

## Next Steps

1. **Immediate Actions**:
   - Set up Windows Server test environment
   - Create detailed technical specifications for Phase 1
   - Identify and evaluate Java RDMA libraries

2. **Phase 1 Kickoff**:

import javax.inject.Inject;

import static java.util.Comparator.naturalOrder;
import static java.util.stream.Collectors.toList;
import static java.util.stream.Collectors.toSet;

/**
 * Orchestrates the steps required to generate or update various release notes files.
 */
public class GenerateReleaseNotesTask extends DefaultTask {
    private static final Logger LOGGER = Logging.getLogger(GenerateReleaseNotesTask.class);

* Aplicar regras de segurança, autenticação, papéis de usuários, etc.
* E muitas outras coisas...

Tudo isso, enquanto minimizamos a repetição de código.

## Primeiros passos { #first-steps }

Vamos ver um exemplo simples. Tão simples que não será muito útil, por enquanto.

Mas dessa forma podemos focar em como o sistema de **Injeção de Dependência** funciona.

/**
 * Manages a dictionary file for stemmer overrides.
 * This class handles reading, parsing, and updating files that contain
 * stemmer override rules, where each rule maps an input word to an
 * output stem. The file format is expected to be `input => output`.
 *
 * The class provides methods for retrieving, adding, updating, and
 * deleting stemmer override items, as well as reloading the dictionary
 * from its source file.
 */

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