```yaml
apiVersion: install.istio.io/v1alpha1
kind: IstioOperator
metadata:
  namespace: istio-operator
spec:
  components:
    ingressGateways:
    - name: istio-ingressgateway
      enabled: true
      namespace: istio-gateways
```

the resulting namespaces will be:

| Component | Namespace |
| --------- | :-------- |
ingressGateways | istio-gateways