CRD #
Hub Define a Hub that communicates with other Hubs
Route Define a routing rules for individual services between hubs
RoutePolicy Is used to define generic composite routing rules, which will eventually convert to Route
ServiceImport/ServiceExport Is for compatibility mcs api, which will eventually convert to RoutePolicy
TunnelRule It’s the rules for building tunnels, The CRD has not been defined and is stored using ConfigMap
ServicePort It is to establish a Service/Endpoint for the imported tunnel, The CRD has not been defined and is stored using ConfigMap