make port number become pointer

Author: capri-xiyue

api/v1/inferencepool_types.go

@@ -123,7 +123,9 @@ type Extension struct {
 	// Service.
 	//
 	// +optional
-	PortNumber PortNumber `json:"portNumber,omitempty"`
+	//nolint:kubeapilinter
+	// ignore kubeapilinter here as we want to use pointer here as 0 usually means all ports.
+	PortNumber *PortNumber `json:"portNumber,omitempty"`
 
 	// Configures how the gateway handles the case when the extension is not responsive.
 	// Defaults to failClose.