// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package root

import (
	"istio.io/istio/pkg/env"
	"istio.io/istio/pkg/log"
)

const (
	// Location to read istioctl defaults from
	defaultIstioctlConfig = "$HOME/.istioctl/config.yaml"
)

var (

const (
	FlagCharts = "charts"
)

// ConfigAndEnvProcessing uses spf13/viper for overriding CLI parameters
func ConfigAndEnvProcessing() error {
	configPath := filepath.Dir(root.IstioConfig)
	baseName := filepath.Base(root.IstioConfig)
	configType := filepath.Ext(root.IstioConfig)
	configName := baseName[0 : len(baseName)-len(configType)]
	if configType != "" {
		configType = configType[1:]
	}

}

func addFlags(cmd *cobra.Command, rootArgs *RootArgs) {
	cmd.PersistentFlags().BoolVarP(&rootArgs.DryRun, "dry-run", "",
		false, "Console/log output only, make no changes.")
}

// GetRootCmd returns the root of the cobra command-tree.
func GetRootCmd(ctx cli.Context, args []string) *cobra.Command {
	rootCmd := &cobra.Command{
		Use:          "mesh",
		Short:        "Command line Istio install utility.",
		SilenceUsage: true,

Ben Leggett <******@****.***> 1714515878 -0400

    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-go@v5
        with:
          go-version: ${{ matrix.go-version }}
          check-latest: true
      - name: Start root lockdown tests
        run: |

```Python hl_lines="3"
{!../../../docs_src/behind_a_proxy/tutorial002.py!}
```

Passing the `root_path` to `FastAPI` would be the equivalent of passing the `--root-path` command line option to Uvicorn or Hypercorn.

### About `root_path`

```JSON
{
    "message": "Hello World",
    "root_path": "/api/v1"
}
```

### ⚒ `root_path` FastAPI 📱

👐, 🚥 👆 🚫 ✔️ 🌌 🚚 📋 ⏸ 🎛 💖 `--root-path` ⚖️ 🌓, 👆 💪 ⚒ `root_path` 🔢 🕐❔ 🏗 👆 FastAPI 📱:

```Python hl_lines="3"
{!../../../docs_src/behind_a_proxy/tutorial002.py!}
```

🚶‍♀️ `root_path` `FastAPI` 🔜 🌓 🚶‍♀️ `--root-path` 📋 ⏸ 🎛 Uvicorn ⚖️ Hypercorn.

### 🔃 `root_path`

  @Deprecated
  public final FluentIterable<T> preOrderTraversal(final T root) {
    checkNotNull(root);
    return new FluentIterable<T>() {
      @Override
      public UnmodifiableIterator<T> iterator() {
        return preOrderIterator(root);
      }
    };
  }

  UnmodifiableIterator<T> preOrderIterator(T root) {
    return new PreOrderIterator(root);
  }

```JSON
{
    "message": "Hello World",
    "root_path": "/api/v1"
}
```

### 在 FastAPI 应用里设置 `root_path`

还有一种方案，如果不能提供 `--root-path` 或等效的命令行选项，则在创建 FastAPI 应用时要设置 `root_path` 参数。

```Python hl_lines="3"
{!../../../docs_src/behind_a_proxy/tutorial002.py!}
```

传递 `root_path` 给 `FastAPI` 与传递 `--root-path` 命令行选项给 Uvicorn 或 Hypercorn 一样。

### 关于 `root_path`

注意，服务器（Uvicorn）只是把 `root_path` 传递给应用。

</div>

Falls Sie Hypercorn verwenden, das hat auch die Option `--root-path`.

!!! note "Technische Details"
    Die ASGI-Spezifikation definiert einen `root_path` für diesen Anwendungsfall.

    Und die Kommandozeilenoption `--root-path` stellt diesen `root_path` bereit.

### Überprüfen des aktuellen `root_path`