config/default/manager_webhook_patch.yaml

# This patch ensures the webhook certificates are properly mounted in the manager container.
# It configures the necessary arguments, volumes, volume mounts, and container ports.
apiVersion: apps/v1
kind: Deployment
metadata:
  name: controller-manager
  namespace: system
spec:
  template:
    spec:
      containers:
      - name: manager
        args:
        - --webhook-cert-path=/tmp/k8s-webhook-server/serving-certs
        ports:
        - containerPort: 9443
          name: webhook-server
          protocol: TCP
        volumeMounts:
        - mountPath: /tmp/k8s-webhook-server/serving-certs
          name: webhook-certs
          readOnly: true
      volumes:
      - name: webhook-certs
        secret:
          secretName: webhook-server-cert