How to reuse k8s validation in my own CRD controller

I created an CRD like this:

import v1 ""

type ApplicationSpec struct {
    Name string `json:"name"`

    PodSpec v1.PodSpec `json:"podSpec"`


notice that I reused PodSpec from core apigroup in my CRD

To avoid user apply invalid yaml files, I decided to add validation logic in my CRD controller, for simple fields like Name , it’s easy to check it’s correctness using regex, while for complex and native kind like PodSpec , since k8s already have validation logic for that, I feel the right way is reuse that in my controller, but how can I do that?