Key:         KafkaTLS,
			Description: "set to 'on' to enable TLS",
			Optional:    true,
			Type:        "on|off",
		},
		config.HelpKV{
			Key:         KafkaTLSSkipVerify,
			Description: `trust server TLS without verification, defaults to "on" (verify)`,
			Optional:    true,
			Type:        "on|off",
		},
		config.HelpKV{
			Key:         KafkaClientTLSCert,

  val serverRule = MockWebServerRule()
  private lateinit var client: OkHttpClient

  private val localhost: HandshakeCertificates by lazy {
    // Generate a self-signed cert for the server to serve and the client to trust.
    val heldCertificate =
      HeldCertificate.Builder()
        .addSubjectAlternativeName("localhost")
        .build()
    return@lazy HandshakeCertificates.Builder()
      .addPlatformTrustedCertificates()

    Java8Compatibility.flip(buffer);
    while (buffer.remaining() >= chunkSize) {
      // we could limit the buffer to ensure process() does not read more than
      // chunkSize number of bytes, but we trust the implementations
      process(buffer);
    }
    buffer.compact(); // preserve any remaining data that do not make a full chunk
  }

  // More details are available at https://k8s.io/docs/reference/access-authn-authz/certificate-signing-requests/#kubernetes-signers
  //
  // Custom signerNames can also be specified. The signer defines:
  //  1. Trust distribution: how trust (CA bundles) are distributed.
  //  2. Permitted subjects: and behavior when a disallowed subject is requested.

   * socket after the response body or trailers.
   */
  class DoNotReadRequestBody(
    val http2ErrorCode: Int = 0,
  ) : SocketPolicy

  /** Don't trust the client during the SSL handshake. */
  object FailHandshake : SocketPolicy

  /**
   * Shutdown the socket input after sending the response. For testing bad behavior.
   *

```
mc admin config set myminio identity_tls --env
KEY:
identity_tls  enable X.509 TLS certificate SSO support

ARGS:
MINIO_IDENTITY_TLS_SKIP_VERIFY  (on|off)    trust client certificates without verification. Defaults to "off" (verify)
```

The MinIO TLS STS API is disabled by default. However, it can be *enabled* by setting environment variable:

```
export MINIO_IDENTITY_TLS_ENABLE=on

  val hostname = "local.host"
  private val handshakeCertificates =
    run {
      // Generate a self-signed cert for the server to serve and the client to trust.
      val heldCertificate =
        HeldCertificate.Builder()
          .commonName(hostname)
          .addSubjectAlternativeName(hostname)
          .build()
      HandshakeCertificates.Builder()

## Proxy implementation

In its initial implementations, the ztunnel was actually implemented in 3 different ways: a bespoke Rust implementation, a bespoke Go implementation, and in Envoy.

In the end, [after evaluation](https://docs.google.com/document/d/1c2123cKuYsBDpIon9FFdctWTUIMFweSjgwG7r8l3818/edit), the decision was to move forward with a Rust implementation.

    return ListTestSuiteBuilder.using(
            new TestStringListGenerator() {
              @Override
              protected List<String> create(final String[] elements) {
                // For this test we trust ArrayList works
                final List<String> list = new ArrayList<>();
                Collections.addAll(list, elements);
                return new AbstractSequentialList<String>() {
                  @Override

func Authentication(username, password string) OperatorOption {
	return func(args *OperatorDNS) {
		args.username = username
		args.password = password
	}
}

// RootCAs - add custom trust certs pool
func RootCAs(certPool *x509.CertPool) OperatorOption {
	return func(args *OperatorDNS) {
		args.rootCAs = certPool
	}
}

// NewOperatorDNS - initialize a new K8S Operator DNS set/unset values.