See [Controlling the injection policy](https://istio.io/latest/docs/setup/additional-setup/sidecar-injection/#controlling-the-injection-policy) for more info.

### Examples

#### Egress Gateway

Deploying a Gateway to be used as an [Egress Gateway](https://istio.io/latest/docs/tasks/traffic-management/egress/egress-gateway/):

```yaml
service:

)

// String returns a name for the level.
// If the level has a name, then that name
// in uppercase is returned.
// If the level is between named values, then
// an integer is appended to the uppercased name.
// Examples:
//
//	LevelWarn.String() => "WARN"
//	(LevelInfo+2).String() => "INFO+2"
func (l Level) String() string {
	str := func(base string, val Level) string {
		if val == 0 {
			return base
		}

```

With a server that holds a certificate and a client that trusts it we have enough for an HTTPS
handshake. The best part of this example is that we don't need to make our test code insecure with a
a fake `HostnameVerifier` or `X509TrustManager`.

Certificate Authorities
-----------------------

The above example uses a self-signed certificate. This is convenient for testing but not

  // On Windows this method also replaces the alternate path separator '/' with
  // the primary path separator '\\', so that for example "bar\\/\\foo" becomes
  // "bar\\foo".

  void Normalize();

  // Returns a pointer to the last occurrence of a valid path separator in
  // the FilePath. On Windows, for example, both '/' and '\' are valid path
  // separators. Returns NULL if no path separator was found.

  // On Windows this method also replaces the alternate path separator '/' with
  // the primary path separator '\\', so that for example "bar\\/\\foo" becomes
  // "bar\\foo".

  void Normalize();

  // Returns a pointer to the last occurrence of a valid path separator in
  // the FilePath. On Windows, for example, both '/' and '\' are valid path
  // separators. Returns NULL if no path separator was found.

a subdirectory with the code of the error message, and add a `index.md` file that contains the
full description of the problem with potential remediation steps, examples, etc. See the existing
files in that directory for examples of how this is done.

## FAQ

### What if I need a resource not available as a collection?

Please open an issue (directed at the "Configuration" product area) or visit the

}

// Prev returns the Go major release immediately preceding v,
// or v itself if v is the first Go major release (1.0) or not a supported
// Go version.
//
// Examples:
//
//	Prev("1.2") = "1.1"
//	Prev("1.3rc4") = "1.2"
func Prev(x string) string {
	v := gover.Parse(x)
	if gover.CmpInt(v.Minor, "1") <= 0 {
		return v.Major
	}
	return v.Major + "." + gover.DecInt(v.Minor)
}

The project path is assumed to be equal to the relative physical file system path.
For example, a path `services:api` is mapped by default to a folder `./services/api` (relative to the project root `.`).

	}
	// Output:
	// err1
	// err2
	// err is err1
	// err is err2
}

func ExampleIs() {
	if _, err := os.Open("non-existing"); err != nil {
		if errors.Is(err, fs.ErrNotExist) {
			fmt.Println("file does not exist")
		} else {
			fmt.Println(err)
		}
	}

	// Output:
	// file does not exist
}

func ExampleAs() {
	if _, err := os.Open("non-existing"); err != nil {
		var pathError *fs.PathError

You will learn more about adding extra information later in the docs, when learning to declare examples.

!!! warning
    Extra keys passed to `Field` will also be present in the resulting OpenAPI schema for your application.
    As these keys may not necessarily be part of the OpenAPI specification, some OpenAPI tools, for example [the OpenAPI validator](https://validator.swagger.io/), may not work with your generated schema.

## Recap