// +optional
  optional Time time = 4;

  // FieldsType is the discriminator for the different fields format and version.
  // There is currently only one possible value: "FieldsV1"
  optional string fieldsType = 6;

  // FieldsV1 holds the first JSON version format as described in the "FieldsV1" type.
  // +optional
  optional FieldsV1 fieldsV1 = 7;

  // does not indicate otherwise, the first block is the issued certificate,
  // and subsequent blocks should be treated as intermediate certificates and presented in TLS handshakes.
  //
  // The certificate is encoded in PEM format.
  //
  // When serialized as JSON or YAML, the data is additionally base64-encoded, so it consists of:
  //
  //     base64(
  //     -----BEGIN CERTIFICATE-----
  //     ...
  //     -----END CERTIFICATE-----

  // Error is to record the problem with the service port
  // The format of the error shall comply with the following rules:
  // - built-in error values shall be specified in this file and those shall use
  //   CamelCase names
  // - cloud provider specific error values must have names that comply with the
  //   format foo.example.com/CamelCase.
  // ---

  // insufficient replicas are detected. Each pod stamped out by the StatefulSet
  // will fulfill this Template, but have a unique identity from the rest
  // of the StatefulSet. Each pod will be named with the format
  // <statefulsetname>-<podindex>. For example, a pod in a StatefulSet named
  // "web" with index number "3" would be named "web-3".
  // The only allowed template.spec.restartPolicy value is "Always".

  // version of both map-based and more expressive set-based selectors. This is done to
  // avoid introspection in the clients. The string will be in the same format as the
  // query-param syntax. If the target type only supports map-based selectors, both this
  // field and map-based selector field are populated.

  // items is the list of CronJobs.
  repeated CronJob items = 2;
}

// CronJobSpec describes how the job execution will look like and when it will actually run.
message CronJobSpec {
  // The schedule in Cron format, see https://en.wikipedia.org/wiki/Cron.
  optional string schedule = 1;

  // The time zone name for the given schedule, see https://en.wikipedia.org/wiki/List_of_tz_database_time_zones.

  // error is to record the problem with the service port
  // The format of the error shall comply with the following rules:
  // - built-in error values shall be specified in this file and those shall use
  //   CamelCase names
  // - cloud provider specific error values must have names that comply with the
  //   format foo.example.com/CamelCase.
  // ---

  // When value is `Indexed`, .spec.completions must be specified and
  // `.spec.parallelism` must be less than or equal to 10^5.
  // In addition, The Pod name takes the form
  // `$(job-name)-$(index)-$(random-string)`,
  // the Pod hostname takes the form `$(job-name)-$(index)`.
  //
  // More completion modes can be added in the future.
  // If the Job controller observes a mode that it doesn't recognize, which

  // +optional
  optional k8s.io.api.core.v1.ObjectReference targetRef = 4;

  // topology contains arbitrary topology information associated with the
  // endpoint. These key/value pairs must conform with the label format.
  // https://kubernetes.io/docs/concepts/overview/working-with-objects/labels
  // Topology may include a maximum of 16 key/value pairs. This includes, but
  // is not limited to the following well known keys:

  // error is to record the problem with the service port
  // The format of the error shall comply with the following rules:
  // - built-in error values shall be specified in this file and those shall use
  //   CamelCase names
  // - cloud provider specific error values must have names that comply with the
  //   format foo.example.com/CamelCase.
  // ---