// +optional
  optional TokenReviewStatus status = 3;
}

// TokenReviewSpec is a description of the token authentication request.
message TokenReviewSpec {
  // Token is the opaque bearer token.
  // +optional
  optional string token = 1;

  // Audiences is a list of the identifiers that the resource server presented
  // with the token identifies as. Audience-aware token authenticators will

a set of control plane settings and components. While the entire mesh respects the same APIs and config,
apps may target different 'environments' which contain different instances and variants of Istio.

- Better security: separate Istio components reside in different namespaces, allowing different teams or
roles to manage different parts of Istio. For example, a security team would maintain the

1. If the destination has a waypoint proxy, we must send to it to the waypoint (using HBONE).
   When we do this, we will want to preserve the original destination Service IP, as the waypoint can do a better job picking a backend pod than we can.

  // +optional
  optional BoundObjectReference boundObjectRef = 3;
}

// TokenRequestStatus is the result of a token request.
message TokenRequestStatus {
  // Token is the opaque bearer token.
  optional string token = 1;

  // ExpirationTimestamp is the time of expiration of the returned token.
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time expirationTimestamp = 2;
}

  optional string type = 1;

  // value contains the amount of change which is permitted by the policy.
  // It must be greater than zero
  optional int32 value = 2;

  // periodSeconds specifies the window of time for which the policy should hold true.
  // PeriodSeconds must be greater than zero and less than or equal to 1800 (30 min).
  optional int32 periodSeconds = 3;
}

//
// <decimalExponent> ::= "e" <signedNumber> | "E" <signedNumber>
// ```
//
// No matter which of the three exponent forms is used, no quantity may represent
// a number greater than 2^63-1 in magnitude, nor may it have more than 3 decimal
// places. Numbers larger or more precise will be capped or rounded up.
// (E.g.: 0.1m will rounded up to 1m.)

  // +optional
  repeated HTTPHeader httpHeaders = 5;
}

// HTTPHeader describes a custom header to be used in HTTP probes
message HTTPHeader {
  // The header field name
  optional string name = 1;

  // The header field value
  optional string value = 2;
}

// HostAlias holds the mapping between IP and hostnames that will be injected as an entry in the

Changes:
- separate namespace allows:
-- easier reconfig of just the gateway
-- TLS secrets and domain name management is isolated, for better security
-- simplified configuration
-- multiple versions of the ingress can be used, to minize upgrade risks

- the new chart uses the default namespace service account, and doesn't require
additional RBAC permissions.

- simplified label structure. Label change is not supported on upgrade.

Changes:
- separate namespace allows:
-- easier reconfig of just the gateway
-- TLS secrets and domain name management is isolated, for better security
-- simplified configuration
-- multiple versions of the ingress can be used, to minimize upgrade risks

- the new chart uses the default namespace service account, and doesn't require
additional RBAC permissions.

- simplified label and chart structure.

P0, P1, P2, or >P2. The priority indicates how important it is to address the issue within the milestone. P0 says that the
milestone cannot be considered achieved if the issue isn't resolved.

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