// Value must be a positive integer.
  // +optional
  optional int64 activeDeadlineSeconds = 5;

  // NodeSelector is a selector which must be true for the carp to fit on a node.
  // Selector which must match a node's labels for the carp to be scheduled on that node.
  // More info: http://kubernetes.io/docs/user-guide/node-selection/README
  // +optional

  // explicitly to 'ClusterFirstWithHostNet'.
  // +optional
  optional string dnsPolicy = 6;

  // NodeSelector is a selector which must be true for the pod to fit on a node.
  // Selector which must match a node's labels for the pod to be scheduled on that node.
  // More info: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
  // +optional
  // +mapType=atomic