title: Validating Webhook for configmap
body: <p>I have <code>Validating Webhook</code> that triggers when some <code>CRDs resources</code> get <code>[CREATE, UPDATE]</code> operations.
  I wanted to add for that, a specific configmap that will trigger that validating webhook.</p>
  <p>Under the same namespace, I have multiple CRDs and configmaps, but I wanted to trigger the webhook also for one of the configmaps.</p>
  <p><a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.19/#validatingwebhook-v1beta1-admissionregistration-k8s-io" rel="nofollow noreferrer">This</a> is the <code>ValidatingWebhook v1beta1 admissionregistration.k8s.io</code> properties.</p>
  <p>I guess the <code>namespaceSelector</code> is not the perfect match for my needs since it triggers for any configmap under that namespace. Tried to understand also if the <code>objectSelector</code> is good solution, but couldnt fully understand.</p>
  <p>This is the relevent part of my webhook configurations:</p>
  <pre><code>webhooks:
  - name: myWebhook.webhook
    clientConfig:
    ***
    failurePolicy:
    ***
    rules:
     - operations: ['CREATE', 'UPDATE']
       apiGroups: ***
       apiVersion: ***
       resources: [CRD_resource_1, CRD_resource_2]
  
    
  </code></pre>
  <p>So I guess that my question is- how can I pick one of the multiple configmaps to triger my validation webhook?</p>
  <p>Many thanks.</p>