Instead, an Istio specific field like `ExpectedTLSIdentity: spiffe://foo.bar` can encode the same information, at a fraction of the cost.

In our testing, even the most generous representations give custom types a 10x edge (in size, allocations, and CPU time) over Envoy types.
In addition, they are more clear and strictly typed; using Envoy types would require us to put a lot of information in untyped `metadata` maps.

  //   * 'kubernetes.io/h2c' - HTTP/2 over cleartext as described in https://www.rfc-editor.org/rfc/rfc7540
  //
  // * Other protocols should use implementation-defined prefixed names such as
  // mycompany.com/my-custom-protocol.
  // +optional
  optional string appProtocol = 4;
}

// EndpointSlice represents a subset of the endpoints that implement a service.

		"", "Modified output Kubernetes resource filename")
	injectCmd.PersistentFlags().StringVar(&iopFilename, "operatorFileName", "",
		"Path to file containing IstioOperator custom resources. If configs from files like "+
			"meshConfigFile, valuesFile are provided, they will be overridden by iop config values.")

gateways:
  istio-egressgateway:
    autoscaleEnabled: false
    resources:
      requests:
        cpu: 10m
        memory: 40Mi
  istio-ingressgateway:
    autoscaleEnabled: false
    ports:
    ## You can add custom gateway ports in user values overrides, but it must include those ports since helm replaces.
    # Note that AWS ELB will by default perform health checks on the first port

gateways:
  istio-egressgateway:
    autoscaleEnabled: false
    resources:
      requests:
        cpu: 10m
        memory: 40Mi
  istio-ingressgateway:
    autoscaleEnabled: false
    ports:
    ## You can add custom gateway ports in user values overrides, but it must include those ports since helm replaces.
    # Note that AWS ELB will by default perform health checks on the first port

  // domain-prefixed path no more than 250 characters in length, e.g.
  // "acme.io/ingress-controller". This field is immutable.
  optional string controller = 1;

  // parameters is a link to a custom resource containing additional
  // configuration for the controller. This is optional if the controller does
  // not require extra parameters.
  // +optional
  optional IngressClassParametersReference parameters = 2;
}

                  Valid Options: ALLOW, DENY, AUDIT, CUSTOM
                enum:
                - ALLOW
                - DENY
                - AUDIT
                - CUSTOM
                type: string
              provider:
                description: Specifies detailed configuration of the CUSTOM action.
                properties:
                  name:

//
// This API can be used to request client certificates to authenticate to kube-apiserver
// (with the "kubernetes.io/kube-apiserver-client" signerName),
// or to obtain certificates from custom non-Kubernetes signers.
message CertificateSigningRequest {
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // spec contains the certificate request, and is immutable after creation.

                  Valid Options: ALLOW, DENY, AUDIT, CUSTOM
                enum:
                - ALLOW
                - DENY
                - AUDIT
                - CUSTOM
                type: string
              provider:
                description: Specifies detailed configuration of the CUSTOM action.
                properties:
                  name:

  # Retrieve Envoy server metrics in prometheus format
  istioctl experimental envoy-stats <pod-name[.namespace]> --output prom

  # Retrieve Envoy server metrics in prometheus format with custom proxy admin port
  istioctl experimental envoy-stats <pod-name[.namespace]> --output prom --proxy-admin-port 15000

  # Retrieve Envoy server metrics in prometheus format with merged application metrics