add ContainersReady condition

pkg/apis/core/types.go

@@ -2094,6 +2094,8 @@ const (
 	// PodReasonUnschedulable reason in PodScheduled PodCondition means that the scheduler
 	// can't schedule the pod right now, for example due to insufficient resources in the cluster.
 	PodReasonUnschedulable = "Unschedulable"
+	// ContainersReady indicates whether all containers in the pod are ready.
+	ContainersReady PodConditionType = "ContainersReady"
 )
 
 type PodCondition struct {

pkg/kubelet/types/pod_status.go

@@ -26,6 +26,7 @@ var PodConditionsByKubelet = []v1.PodConditionType{
 	v1.PodReady,
 	v1.PodInitialized,
 	v1.PodReasonUnschedulable,
+	v1.ContainersReady,
 }
 
 // PodConditionByKubelet returns if the pod condition type is owned by kubelet

staging/src/k8s.io/api/core/v1/types.go

@@ -2312,6 +2312,8 @@ const (
 	// PodReasonUnschedulable reason in PodScheduled PodCondition means that the scheduler
 	// can't schedule the pod right now, for example due to insufficient resources in the cluster.
 	PodReasonUnschedulable = "Unschedulable"
+	// ContainersReady indicates whether all containers in the pod are ready.
+	ContainersReady PodConditionType = "ContainersReady"
 )
 
 // PodCondition contains details for the current condition of this pod.