href="https://sqlmodel.tiangolo.com/" class="external-link" target="_blank">**SQLModel**</a> to interact with a SQL database and simplify the code with *data models*  and *table models*.

You can learn a lot more at the **SQLModel** docs, there's a longer mini <a href="https://sqlmodel.tiangolo.com/tutorial/fastapi/" class="external-link" target="_blank">tutorial on using SQLModel with **FastAPI**</a>. 🚀...

    protected long acquisitionTimeout = 30 * 1000L;

    protected Cache<String, Pair<String[], String[]>> groupCache;

    protected long groupCacheExpiry = 10 * 60L;

    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }
        ComponentUtil.getSsoManager().register(this);

	VSTRCZBS V18, V20, V22, V24	// e78240306f8a
	VSTRCZHS V18, V20, V22, V24	// e78241306f8a
	VSTRCZFS V18, V20, V22, V24	// e78242306f8a

	RET
	RET	foo(SB)

TEXT main·init(SB),DUPOK|NOSPLIT,$0 // TEXT main.init(SB), DUPOK|NOSPLIT, $0
	RET

TEXT main·main(SB),DUPOK|NOSPLIT,$0 // TEXT main.main(SB), DUPOK|NOSPLIT, $0
	BL      main·foo(SB)    // CALL main.foo(SB)

/// info

Wenn Sie Kubernetes verwenden, wäre dies wahrscheinlich ein <a href="https://kubernetes.io/docs/concepts/workloads/pods/init-containers/" class="external-link" target="_blank">Init-Container</a>.

///

/// tip

另外，请记住，根据您的设置，在某些情况下，您在开始应用程序之前**可能甚至不需要任何先前的步骤**。

 在这种情况下，您就不必担心这些。 🤷

///

### 前面步骤策略的示例

这将在**很大程度上取决于您部署系统的方式**，并且可能与您启动程序、处理重启等的方式有关。

以下是一些可能的想法：

* Kubernetes 中的“Init Container”在应用程序容器之前运行
* 一个 bash 脚本，运行前面的步骤，然后启动您的应用程序
     * 您仍然需要一种方法来启动/重新启动 bash 脚本、检测错误等。

/// tip

我将在以后的章节中为您提供使用容器执行此操作的更具体示例：[容器中的 FastAPI - Docker](docker.md){.internal-link target=_blank}。

///

This will **depend heavily** on the way you **deploy your system**, and it would probably be connected to the way you start programs, handling restarts, etc.

Here are some possible ideas:

* An "Init Container" in Kubernetes that runs before your app container
* A bash script that runs the previous steps and then starts your application
    * You would still need a way to start/restart *that* bash script, detect errors, etc.

/// info

如果你使用 Kubernetes，这可能是 <a href="https://kubernetes.io/docs/concepts/workloads/pods/init-containers/" class="external-link" target="_blank">Init Container</a>。

///

如果在你的用例中，运行前面的步骤**并行多次**没有问题（例如，如果你没有运行数据库迁移，而只是检查数据库是否已准备好），那么你也可以将它们放在开始主进程之前在每个容器中。

### 单容器

/// info

🚥 👆 ⚙️ Kubernetes, 👉 🔜 🎲 <a href="https://kubernetes.io/docs/concepts/workloads/pods/init-containers/" class="external-link" target="_blank">🕑 📦</a>.

///

🚥 👆 ⚙️ 💼 📤 🙅‍♂ ⚠ 🏃‍♂ 👈 ⏮️ 📶 **💗 🕰 🔗** (🖼 🚥 👆 🚫 🏃 💽 🛠️, ✋️ ✅ 🚥 💽 🔜), ⤴️ 👆 💪 🚮 👫 🔠 📦 ▶️️ ⏭ ▶️ 👑 🛠️.

### 👁 📦

- Fixed a bug where init containers may fail to start due to a temporary container runtime failure. ([#127212](https://github.com/kubernetes/kubernetes/pull/127212), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev)) [SIG Node]

```Python hl_lines="6  11  16" title="app/routers/users.py"
{!../../docs_src/bigger_applications/app/routers/users.py!}
```

Você pode pensar em `APIRouter` como uma classe "mini `FastAPI`".

Todas as mesmas opções são suportadas.

Todos os mesmos `parameters`, `responses`, `dependencies`, `tags`, etc.

/// tip | "Dica"