The Distributed Cloud Manager (DCM) uses Istio to manage each logical cloud. It installs a control plane per cluster per logical cloud and it uses Istio Replicated Control Planes for this. For each logical cloud, it will install istio in an istio namespace for that logical cloud
Steps Required to Install Istio for DCM
- Install Istio in custom namespace
- Add stub domain with suffix for the logical cloud to the kube-system coredns configmap