* frac(x) respectively. This is the same definition as used by Excel and by S, it is the Type 7
 * definition in <a
 * href="http://stat.ethz.ch/R-manual/R-devel/library/stats/html/quantile.html">R</a>, and it is
 * described by <a
 * href="http://en.wikipedia.org/wiki/Quantile#Estimating_the_quantiles_of_a_population">
 * wikipedia</a> as providing "Linear interpolation of the modes for the order statistics for the
 * uniform distribution on [0,1]."

  //   request resource.
  // Documentation on CEL: https://kubernetes.io/docs/reference/using-api/cel/
  //
  // Required.
  optional string expression = 2;
}

// MutatingWebhook describes an admission webhook and the resources and operations it applies to.
message MutatingWebhook {
  // The name of the admission webhook.
  // Name should be fully qualified, e.g., imagepolicy.kubernetes.io, where

  //   request resource.
  // Documentation on CEL: https://kubernetes.io/docs/reference/using-api/cel/
  //
  // Required.
  optional string expression = 2;
}

// MutatingWebhook describes an admission webhook and the resources and operations it applies to.
message MutatingWebhook {
  // The name of the admission webhook.
  // Name should be fully qualified, e.g., imagepolicy.kubernetes.io, where

  // the last 300sec is used).
  // +optional
  optional HPAScalingRules scaleDown = 2;
}

// HorizontalPodAutoscalerCondition describes the state of
// a HorizontalPodAutoscaler at a certain point.
message HorizontalPodAutoscalerCondition {
  // type describes the current condition
  optional string type = 1;

  // status is the status of the condition (True, False, Unknown)
  optional string status = 2;

        if (versionMatcher.matches(PlatformVersion)) {
          val description = StringDescription()
          versionMatcher.describeTo(description)
          description.appendText(" expected to fail with exception that ")
          failureMatcher.describeTo(description)

          fail<Any>(description.toString())
        }
      }
    }

  // the last 300sec is used).
  // +optional
  optional HPAScalingRules scaleDown = 2;
}

// HorizontalPodAutoscalerCondition describes the state of
// a HorizontalPodAutoscaler at a certain point.
message HorizontalPodAutoscalerCondition {
  // type describes the current condition
  optional string type = 1;

  // status is the status of the condition (True, False, Unknown)
  optional string status = 2;

### Concurrencia y Hamburguesas

El concepto de código **asíncrono** descrito anteriormente a veces también se llama **"concurrencia"**. Es diferente del **"paralelismo"**.

**Concurrencia** y **paralelismo** ambos se relacionan con "cosas diferentes que suceden más o menos al mismo tiempo".

# Architecture of Istiod

This document describes the high level architecture of the Istio control plane, Istiod.
Istiod is structured as a modular monolith, housing a wide range of functionality from certificate signing, proxy configuration (XDS), traditional Kubernetes controllers, and more.

## Proxy Configuration

  // +optional
  repeated IngressRule rules = 3;
}

// IngressStatus describes the current state of the Ingress.
message IngressStatus {
  // loadBalancer contains the current status of the load-balancer.
  // +optional
  optional IngressLoadBalancerStatus loadBalancer = 1;
}

// IngressTLS describes the transport layer security associated with an Ingress.
message IngressTLS {

func (c *kesClient) HMAC(ctx context.Context, keyID string, msg []byte) ([]byte, error) {
	c.lock.RLock()
	defer c.lock.RUnlock()

	return c.client.HMAC(context.Background(), keyID, msg)
}

// DescribePolicy describes a policy by returning its metadata.
// e.g. who created the policy at which point in time.
func (c *kesClient) DescribePolicy(ctx context.Context, policy string) (*kes.PolicyInfo, error) {
	c.lock.RLock()