diff --git a/pkg/controllers/raycluster_webhook.go b/pkg/controllers/raycluster_webhook.go
index a07e04a1f..1933f80ba 100644
--- a/pkg/controllers/raycluster_webhook.go
+++ b/pkg/controllers/raycluster_webhook.go
@@ -110,7 +110,7 @@ func (w *rayClusterWebhook) Default(ctx context.Context, obj runtime.Object) err
 			rayCluster.Spec.WorkerGroupSpecs[0].Template.Spec.Volumes = upsert(rayCluster.Spec.WorkerGroupSpecs[0].Template.Spec.Volumes, caVol, withVolumeName(caVol.Name))
 		}
 		// Append the create-cert Init Container
-		rayCluster.Spec.WorkerGroupSpecs[0].Template.Spec.InitContainers = upsert(rayCluster.Spec.WorkerGroupSpecs[0].Template.Spec.InitContainers, rayWorkerInitContainer(rayCluster), withContainerName(initContainerName))
+		rayCluster.Spec.WorkerGroupSpecs[0].Template.Spec.InitContainers = upsert(rayCluster.Spec.WorkerGroupSpecs[0].Template.Spec.InitContainers, rayWorkerInitContainer(), withContainerName(initContainerName))
 
 	}
 
@@ -143,7 +143,11 @@ func (w *rayClusterWebhook) ValidateUpdate(ctx context.Context, oldObj, newObj r
 	allErrors = append(allErrors, validateOAuthProxyContainer(rayCluster)...)
 	allErrors = append(allErrors, validateOAuthProxyVolume(rayCluster)...)
 	allErrors = append(allErrors, validateHeadGroupServiceAccountName(rayCluster)...)
-
+	// Init Container related errors
+	allErrors = append(allErrors, w.validateHeadInitContainer(rayCluster)...)
+	allErrors = append(allErrors, w.validateWorkerInitContainer(rayCluster)...)
+	allErrors = append(allErrors, validateEnvVars(rayCluster)...)
+	allErrors = append(allErrors, validateCaVolumes(rayCluster)...)
 	return warnings, allErrors.ToAggregate()
 }
 
@@ -338,7 +342,7 @@ func (w *rayClusterWebhook) rayHeadInitContainer(rayCluster *rayv1.RayCluster) c
 	return initContainerHead
 }
 
-func rayWorkerInitContainer(rayCluster *rayv1.RayCluster) corev1.Container {
+func rayWorkerInitContainer() corev1.Container {
 	initContainerWorker := corev1.Container{
 		Name:  "create-cert",
 		Image: "quay.io/project-codeflare/ray:latest-py39-cu118",
@@ -367,7 +371,7 @@ func (w *rayClusterWebhook) validateHeadInitContainer(rayCluster *rayv1.RayClust
 func (w *rayClusterWebhook) validateWorkerInitContainer(rayCluster *rayv1.RayCluster) field.ErrorList {
 	var allErrors field.ErrorList
 
-	if err := contains(rayCluster.Spec.WorkerGroupSpecs[0].Template.Spec.InitContainers, rayWorkerInitContainer(rayCluster), byContainerName,
+	if err := contains(rayCluster.Spec.WorkerGroupSpecs[0].Template.Spec.InitContainers, rayWorkerInitContainer(), byContainerName,
 		field.NewPath("spec", "workerGroupSpecs", "0", "template", "spec", "initContainers"),
 		"create-cert Init Container is immutable"); err != nil {
 		allErrors = append(allErrors, err)