// +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // spec contains the certificate request, and is immutable after creation.
  // Only the request, signerName, expirationSeconds, and usages fields can be set on creation.
  // Other fields are derived by Kubernetes and cannot be modified by users.
  optional CertificateSigningRequestSpec spec = 2;

  // Derived information about the request.

  // +optional
  optional k8s.io.api.core.v1.ObjectReference regarding = 8;

  // related is the optional secondary object for more complex actions. E.g. when regarding object triggers
  // a creation or deletion of related object.
  // +optional
  optional k8s.io.api.core.v1.ObjectReference related = 9;

  // note is a human-readable description of the status of this operation.

  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // spec contains the certificate request, and is immutable after creation.
  // Only the request, signerName, expirationSeconds, and usages fields can be set on creation.
  // Other fields are derived by Kubernetes and cannot be modified by users.
  optional CertificateSigningRequestSpec spec = 2;

The ambient CNI agent is the only place where ambient network config and pod redirection machinery happens.

  // addressType specifies the type of address carried by this EndpointSlice.
  // All addresses in this slice must be the same type. This field is
  // immutable after creation. The following address types are currently
  // supported:
  // * IPv4: Represents an IPv4 Address.
  // * IPv6: Represents an IPv6 Address.
  // * FQDN: Represents a Fully Qualified Domain Name.

  // Specifies the duration in seconds relative to the startTime that the job
  // may be continuously active before the system tries to terminate it; value
  // must be positive integer. If a Job is suspended (at creation or through an
  // update), this timer will effectively be stopped and reset when the Job is
  // resumed again.
  // +optional
  optional int64 activeDeadlineSeconds = 3;

  // addressType specifies the type of address carried by this EndpointSlice.
  // All addresses in this slice must be the same type. This field is
  // immutable after creation. The following address types are currently
  // supported:
  // * IPv4: Represents an IPv4 Address.
  // * IPv6: Represents an IPv6 Address.
  // * FQDN: Represents a Fully Qualified Domain Name.

  // operation will fail.  If not specified, a port will be allocated if this
  // Service requires one.  If this field is specified when creating a
  // Service which does not need it, creation will fail. This field will be
  // wiped when updating a Service to no longer need it (e.g. changing type
  // from NodePort to ClusterIP).

}

// ImageReviewContainerSpec is a description of a container within the pod creation request.
message ImageReviewContainerSpec {
  // This can be in the form image:tag or image@SHA:012345679abcdef.
  // +optional
  optional string image = 1;
}

// ImageReviewSpec is a description of the pod creation request.
message ImageReviewSpec {

// users must create.
message ObjectMeta {
  // Name must be unique within a namespace. Is required when creating resources, although
  // some resources may allow a client to request the generation of an appropriate name
  // automatically. Name is primarily intended for creation idempotence and configuration
  // definition.
  // Cannot be updated.