<a href="https://github.com/containous/traefik/releases" class="external-link" target="_blank">Faça o download do Traefik.</a>, Ele é um único binário e você pode extrair o arquivo compactado e executá-lo diretamente do terminal.

Então, crie um arquivo `traefik.toml` com:

```TOML hl_lines="3"
[entryPoints]
  [entryPoints.http]
    address = ":9999"

[providers]
  [providers.file]
    filename = "routes.toml"

labels.mobile=Mobile
labels.user_postalAddress=Postal Address
labels.postalAddress=Postal Address
labels.user_city=City
labels.city=City
labels.user_teletexTerminalIdentifier=Teletex Terminal Identifier
labels.teletexTerminalIdentifier=Teletex Terminal Identifier
labels.user_x121Address=x121Address
labels.x121Address=x121Address
labels.user_businessCategory=Business Category
labels.businessCategory=Business Category

labels.mobile=Mobiltelefon
labels.user_postalAddress=Postanschrift
labels.postalAddress=Postanschrift
labels.user_city=Stadt
labels.city=Stadt
labels.user_teletexTerminalIdentifier=Teletex-Terminal-Kennung
labels.teletexTerminalIdentifier=Teletex-Terminal-Kennung
labels.user_x121Address=x121Address
labels.x121Address=x121Address
labels.user_businessCategory=Geschäftskategorie
labels.businessCategory=Geschäftskategorie

labels.mobile=Mobile
labels.user_postalAddress=Adresse postale
labels.postalAddress=Adresse postale
labels.user_city=Ville
labels.city=Ville
labels.user_teletexTerminalIdentifier=Identifiant de terminal Teletex
labels.teletexTerminalIdentifier=Identifiant de terminal Teletex
labels.user_x121Address=x121Address
labels.x121Address=x121Address
labels.user_businessCategory=Catégorie d'entreprise
labels.businessCategory=Catégorie d'entreprise

    call: Call,
    inetSocketAddress: InetSocketAddress,
    proxy: Proxy,
    protocol: Protocol?,
  ) {
  }

  /**
   * Invoked when a connection attempt fails. This failure is not terminal if further routes are
   * available and failure recovery is enabled.
   *
   * If the `call` uses HTTPS, this will be invoked after [secureConnectStart], otherwise it will
   * invoked after [connectStart].
   */

      // to a confusing error message.
      throw new TimeoutException(
          "Timed out waiting for "
              + this
              + " to reach a terminal state. "
              + "Current state: "
              + state());
    }
  }

  /** Checks that the current state is equal to the expected state. */
  @GuardedBy("monitor")

$ echo "Hello $Env:MY_NAME"

Hello Wade Wilson
```

</div>

////

### Umgebungsvariablen mit Python auslesen

Sie können Umgebungsvariablen auch außerhalb von Python im Terminal (oder mit einer anderen Methode) erstellen und diese dann mit Python auslesen.

Sie könnten zum Beispiel eine Datei `main.py` haben mit:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")

labels.user_postalAddress=Endereço postal
labels.postalAddress=Endereço postal
labels.user_city=Cidade
labels.city=Cidade
labels.user_teletexTerminalIdentifier=Identificador de terminal de teletex
labels.teletexTerminalIdentifier=Identificador de terminal de teletex
labels.user_x121Address=x121Address
labels.x121Address=x121Address
labels.user_businessCategory=Categoria de negócios
labels.businessCategory=Categoria de negócios

	// but advance only one byte. This matches the behavior of a range loop over
	// an incorrectly encoded string.
	return 1, errorRune, nil
}

// dropCR drops a terminal \r from the data.
func dropCR(data []byte) []byte {
	if len(data) > 0 && data[len(data)-1] == '\r' {
		return data[0 : len(data)-1]
	}
	return data
}

您可以轻易地在本地使用 <a href="https://docs.traefik.io/" class="external-link" target="_blank">Traefik</a> 运行移除路径前缀的试验。

<a href="https://github.com/containous/traefik/releases" class="external-link" target="_blank">下载 Traefik</a>，这是一个二进制文件，需要解压文件，并在 Terminal 中直接运行。

然后创建包含如下内容的 `traefik.toml` 文件：

```TOML hl_lines="3"
[entryPoints]
  [entryPoints.http]
    address = ":9999"

[providers]
  [providers.file]
    filename = "routes.toml"
```