Multicluster documentation uses the operator installation model

[kbreit]

The documentation at https://istio.io/latest/docs/setup/install/multicluster/primary-remote/ shows how to install Istio using the operator model. However, the operator installation documentation at https://istio.io/latest/docs/setup/install/operator/ says

Use of the operator for new Istio installations is discouraged in favor of the Istioctl and Helm installation methods. While the operator will continue to be supported, new feature requests will not be prioritized.

The documentation for installation should focus on recommended methods instead of deprecated methods.

[hanxiaop]

The IstioOperator resource is not equivalent to the operator mentioned in that document, although the operator controller reconciles that resource as well. The discouraged thing specifically meant to be the in-cluster operator controller. Using istioctl is acceptable and will continue to be supported. We are in the process of making the wording less confusing.

[nshankar13]

@hanxiaop was looking into adding some steps for how to install Istio + east-west gateways for multi-cluster with Helm. Been testing this out locally and it's doable.

[keithmattix]

You should be able to use networkGateway in the gateway helm chart to configure an eastwest gateway