extract PodReasonUnschedulable out of the PodConditionType const group

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

@@ -2410,18 +2410,22 @@ type PodConditionType string
 
 // These are valid conditions of pod.
 const (
-	// PodScheduled represents status of the scheduling process for this pod.
-	PodScheduled PodConditionType = "PodScheduled"
+	// ContainersReady indicates whether all containers in the pod are ready.
+	ContainersReady PodConditionType = "ContainersReady"
+	// PodInitialized means that all init containers in the pod have started successfully.
+	PodInitialized PodConditionType = "Initialized"
 	// PodReady means the pod is able to service requests and should be added to the
 	// load balancing pools of all matching services.
 	PodReady PodConditionType = "Ready"
-	// PodInitialized means that all init containers in the pod have started successfully.
-	PodInitialized PodConditionType = "Initialized"
+	// PodScheduled represents status of the scheduling process for this pod.
+	PodScheduled PodConditionType = "PodScheduled"
+)
+
+// These are reasons for a pod's transition to a condition.
+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.