[feat][plugin] support creating RayCluster with config file

kubectl-plugin/pkg/cmd/create/create_workergroup.go

@@ -137,12 +137,8 @@ func (options *CreateWorkerGroupOptions) Complete(cmd *cobra.Command, args []str
 }
 
 func (options *CreateWorkerGroupOptions) Validate() error {
-	// we must assign gke-tpu-accelerator and gke-tpu-topology in nodeSelector
-	// if worker-tpu is not 0
-	if options.workerTPU != "0" {
-		if err := util.ValidateTPUNodeSelector(options.numOfHosts, options.workerNodeSelectors); err != nil {
-			return fmt.Errorf("%w", err)
-		}
+	if err := util.ValidateTPU(&options.workerTPU, &options.numOfHosts, options.workerNodeSelectors); err != nil {
+		return fmt.Errorf("%w", err)
 	}
 	return nil
 }

kubectl-plugin/pkg/cmd/job/job_submit.go

@@ -280,18 +280,20 @@ func (options *SubmitJobOptions) Run(ctx context.Context, factory cmdutil.Factor
 			// here, even though it will be ignored.
 			// See https://github.com/ray-project/kuberay/issues/3126.
 			Entrypoint: options.entryPoint,
-			RayClusterSpecObject: generation.RayClusterSpecObject{
+			RayClusterConfig: generation.RayClusterConfig{
 				RayVersion: &options.rayVersion,
 				Image:      &options.image,
-				HeadCPU:    &options.headCPU,
-				HeadMemory: &options.headMemory,
-				HeadGPU:    &options.headGPU,
-				WorkerGroups: []generation.WorkerGroupConfig{
+				Head: &generation.Head{
+					CPU:    &options.headCPU,
+					Memory: &options.headMemory,
+					GPU:    &options.headGPU,
+				},
+				WorkerGroups: []generation.WorkerGroup{
 					{
-						WorkerCPU:      &options.workerCPU,
-						WorkerMemory:   &options.workerMemory,
-						WorkerGPU:      &options.workerGPU,
-						WorkerReplicas: &options.workerReplicas,
+						CPU:      &options.workerCPU,
+						Memory:   &options.workerMemory,
+						GPU:      &options.workerGPU,
+						Replicas: options.workerReplicas,
 					},
 				},
 			},

kubectl-plugin/pkg/util/constant.go

@@ -17,4 +17,16 @@ const (
 	// NodeSelector
 	NodeSelectorGKETPUAccelerator = "cloud.google.com/gke-tpu-accelerator"
 	NodeSelectorGKETPUTopology    = "cloud.google.com/gke-tpu-topology"
+
+	DefaultHeadCPU                = "2"
+	DefaultHeadMemory             = "4Gi"
+	DefaultHeadGPU                = "0"
+	DefaultHeadEphemeralStorage   = ""
+	DefaultWorkerReplicas         = int32(1)
+	DefaultWorkerCPU              = "2"
+	DefaultWorkerMemory           = "4Gi"
+	DefaultWorkerGPU              = "0"
+	DefaultWorkerTPU              = "0"
+	DefaultWorkerEphemeralStorage = ""
+	DefaultNumOfHosts             = 1
 )